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""" |
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Fundamental Physical Constants |
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------------------------------ |
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These constants are taken from CODATA Recommended Values of the Fundamental |
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Physical Constants 2022. |
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Object |
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------ |
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physical_constants : dict |
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A dictionary containing physical constants. Keys are the names of physical |
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constants, values are tuples (value, units, precision). |
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Functions |
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--------- |
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value(key): |
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Returns the value of the physical constant(key). |
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unit(key): |
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Returns the units of the physical constant(key). |
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precision(key): |
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Returns the relative precision of the physical constant(key). |
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find(sub): |
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Prints or returns list of keys containing the string sub, default is all. |
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Source |
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------ |
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The values of the constants provided at this site are recommended for |
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international use by CODATA and are the latest available. Termed the "2018 |
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CODATA recommended values," they are generally recognized worldwide for use in |
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all fields of science and technology. The values became available on 20 May |
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2019 and replaced the 2014 CODATA set. Also available is an introduction to the |
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constants for non-experts at |
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https://physics.nist.gov/cuu/Constants/introduction.html |
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References |
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---------- |
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Theoretical and experimental publications relevant to the fundamental constants |
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and closely related precision measurements published since the mid 1980s, but |
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also including many older papers of particular interest, some of which date |
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back to the 1800s. To search the bibliography, visit |
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https://physics.nist.gov/cuu/Constants/ |
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""" |
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import warnings |
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import math |
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from typing import Any |
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from collections.abc import Callable |
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__all__ = ['physical_constants', 'value', 'unit', 'precision', 'find', |
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'ConstantWarning'] |
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""" |
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Source: https://physics.nist.gov/cuu/Constants/ |
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The values of the constants provided at this site are recommended for |
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international use by CODATA and are the latest available. Termed the "2018 |
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CODATA recommended values," they are generally recognized worldwide for use in |
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all fields of science and technology. The values became available on 20 May |
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2019 and replaced the 2014 CODATA set. |
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""" |
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txt2002 = """\ |
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Wien displacement law constant 2.897 7685e-3 0.000 0051e-3 m K |
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atomic unit of 1st hyperpolarizablity 3.206 361 51e-53 0.000 000 28e-53 C^3 m^3 J^-2 |
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atomic unit of 2nd hyperpolarizablity 6.235 3808e-65 0.000 0011e-65 C^4 m^4 J^-3 |
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atomic unit of electric dipole moment 8.478 353 09e-30 0.000 000 73e-30 C m |
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atomic unit of electric polarizablity 1.648 777 274e-41 0.000 000 016e-41 C^2 m^2 J^-1 |
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atomic unit of electric quadrupole moment 4.486 551 24e-40 0.000 000 39e-40 C m^2 |
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atomic unit of magn. dipole moment 1.854 801 90e-23 0.000 000 16e-23 J T^-1 |
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atomic unit of magn. flux density 2.350 517 42e5 0.000 000 20e5 T |
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deuteron magn. moment 0.433 073 482e-26 0.000 000 038e-26 J T^-1 |
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deuteron magn. moment to Bohr magneton ratio 0.466 975 4567e-3 0.000 000 0050e-3 |
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deuteron magn. moment to nuclear magneton ratio 0.857 438 2329 0.000 000 0092 |
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deuteron-electron magn. moment ratio -4.664 345 548e-4 0.000 000 050e-4 |
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deuteron-proton magn. moment ratio 0.307 012 2084 0.000 000 0045 |
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deuteron-neutron magn. moment ratio -0.448 206 52 0.000 000 11 |
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electron gyromagn. ratio 1.760 859 74e11 0.000 000 15e11 s^-1 T^-1 |
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electron gyromagn. ratio over 2 pi 28 024.9532 0.0024 MHz T^-1 |
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electron magn. moment -928.476 412e-26 0.000 080e-26 J T^-1 |
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electron magn. moment to Bohr magneton ratio -1.001 159 652 1859 0.000 000 000 0038 |
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electron magn. moment to nuclear magneton ratio -1838.281 971 07 0.000 000 85 |
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electron magn. moment anomaly 1.159 652 1859e-3 0.000 000 0038e-3 |
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electron to shielded proton magn. moment ratio -658.227 5956 0.000 0071 |
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electron to shielded helion magn. moment ratio 864.058 255 0.000 010 |
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electron-deuteron magn. moment ratio -2143.923 493 0.000 023 |
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electron-muon magn. moment ratio 206.766 9894 0.000 0054 |
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electron-neutron magn. moment ratio 960.920 50 0.000 23 |
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electron-proton magn. moment ratio -658.210 6862 0.000 0066 |
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magn. constant 12.566 370 614...e-7 (exact) N A^-2 |
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magn. flux quantum 2.067 833 72e-15 0.000 000 18e-15 Wb |
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muon magn. moment -4.490 447 99e-26 0.000 000 40e-26 J T^-1 |
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muon magn. moment to Bohr magneton ratio -4.841 970 45e-3 0.000 000 13e-3 |
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muon magn. moment to nuclear magneton ratio -8.890 596 98 0.000 000 23 |
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muon-proton magn. moment ratio -3.183 345 118 0.000 000 089 |
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neutron gyromagn. ratio 1.832 471 83e8 0.000 000 46e8 s^-1 T^-1 |
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neutron gyromagn. ratio over 2 pi 29.164 6950 0.000 0073 MHz T^-1 |
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neutron magn. moment -0.966 236 45e-26 0.000 000 24e-26 J T^-1 |
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neutron magn. moment to Bohr magneton ratio -1.041 875 63e-3 0.000 000 25e-3 |
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neutron magn. moment to nuclear magneton ratio -1.913 042 73 0.000 000 45 |
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neutron to shielded proton magn. moment ratio -0.684 996 94 0.000 000 16 |
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neutron-electron magn. moment ratio 1.040 668 82e-3 0.000 000 25e-3 |
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neutron-proton magn. moment ratio -0.684 979 34 0.000 000 16 |
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proton gyromagn. ratio 2.675 222 05e8 0.000 000 23e8 s^-1 T^-1 |
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proton gyromagn. ratio over 2 pi 42.577 4813 0.000 0037 MHz T^-1 |
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proton magn. moment 1.410 606 71e-26 0.000 000 12e-26 J T^-1 |
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proton magn. moment to Bohr magneton ratio 1.521 032 206e-3 0.000 000 015e-3 |
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proton magn. moment to nuclear magneton ratio 2.792 847 351 0.000 000 028 |
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proton magn. shielding correction 25.689e-6 0.015e-6 |
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proton-neutron magn. moment ratio -1.459 898 05 0.000 000 34 |
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shielded helion gyromagn. ratio 2.037 894 70e8 0.000 000 18e8 s^-1 T^-1 |
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shielded helion gyromagn. ratio over 2 pi 32.434 1015 0.000 0028 MHz T^-1 |
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shielded helion magn. moment -1.074 553 024e-26 0.000 000 093e-26 J T^-1 |
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shielded helion magn. moment to Bohr magneton ratio -1.158 671 474e-3 0.000 000 014e-3 |
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shielded helion magn. moment to nuclear magneton ratio -2.127 497 723 0.000 000 025 |
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shielded helion to proton magn. moment ratio -0.761 766 562 0.000 000 012 |
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shielded helion to shielded proton magn. moment ratio -0.761 786 1313 0.000 000 0033 |
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shielded helion gyromagn. ratio 2.037 894 70e8 0.000 000 18e8 s^-1 T^-1 |
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shielded helion gyromagn. ratio over 2 pi 32.434 1015 0.000 0028 MHz T^-1 |
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shielded proton magn. moment 1.410 570 47e-26 0.000 000 12e-26 J T^-1 |
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shielded proton magn. moment to Bohr magneton ratio 1.520 993 132e-3 0.000 000 016e-3 |
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shielded proton magn. moment to nuclear magneton ratio 2.792 775 604 0.000 000 030 |
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{220} lattice spacing of silicon 192.015 5965e-12 0.000 0070e-12 m""" |
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def exact2002(exact): |
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replace = { |
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'magn. constant': 4e-7 * math.pi, |
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} |
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return replace |
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txt2006 = """\ |
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lattice spacing of silicon 192.015 5762 e-12 0.000 0050 e-12 m |
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alpha particle-electron mass ratio 7294.299 5365 0.000 0031 |
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alpha particle mass 6.644 656 20 e-27 0.000 000 33 e-27 kg |
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alpha particle mass energy equivalent 5.971 919 17 e-10 0.000 000 30 e-10 J |
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alpha particle mass energy equivalent in MeV 3727.379 109 0.000 093 MeV |
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alpha particle mass in u 4.001 506 179 127 0.000 000 000 062 u |
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alpha particle molar mass 4.001 506 179 127 e-3 0.000 000 000 062 e-3 kg mol^-1 |
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alpha particle-proton mass ratio 3.972 599 689 51 0.000 000 000 41 |
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Angstrom star 1.000 014 98 e-10 0.000 000 90 e-10 m |
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atomic mass constant 1.660 538 782 e-27 0.000 000 083 e-27 kg |
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atomic mass constant energy equivalent 1.492 417 830 e-10 0.000 000 074 e-10 J |
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atomic mass constant energy equivalent in MeV 931.494 028 0.000 023 MeV |
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atomic mass unit-electron volt relationship 931.494 028 e6 0.000 023 e6 eV |
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atomic mass unit-hartree relationship 3.423 177 7149 e7 0.000 000 0049 e7 E_h |
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atomic mass unit-hertz relationship 2.252 342 7369 e23 0.000 000 0032 e23 Hz |
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atomic mass unit-inverse meter relationship 7.513 006 671 e14 0.000 000 011 e14 m^-1 |
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atomic mass unit-joule relationship 1.492 417 830 e-10 0.000 000 074 e-10 J |
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atomic mass unit-kelvin relationship 1.080 9527 e13 0.000 0019 e13 K |
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atomic mass unit-kilogram relationship 1.660 538 782 e-27 0.000 000 083 e-27 kg |
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atomic unit of 1st hyperpolarizability 3.206 361 533 e-53 0.000 000 081 e-53 C^3 m^3 J^-2 |
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atomic unit of 2nd hyperpolarizability 6.235 380 95 e-65 0.000 000 31 e-65 C^4 m^4 J^-3 |
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atomic unit of action 1.054 571 628 e-34 0.000 000 053 e-34 J s |
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atomic unit of charge 1.602 176 487 e-19 0.000 000 040 e-19 C |
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atomic unit of charge density 1.081 202 300 e12 0.000 000 027 e12 C m^-3 |
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atomic unit of current 6.623 617 63 e-3 0.000 000 17 e-3 A |
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atomic unit of electric dipole mom. 8.478 352 81 e-30 0.000 000 21 e-30 C m |
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atomic unit of electric field 5.142 206 32 e11 0.000 000 13 e11 V m^-1 |
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atomic unit of electric field gradient 9.717 361 66 e21 0.000 000 24 e21 V m^-2 |
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atomic unit of electric polarizability 1.648 777 2536 e-41 0.000 000 0034 e-41 C^2 m^2 J^-1 |
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atomic unit of electric potential 27.211 383 86 0.000 000 68 V |
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atomic unit of electric quadrupole mom. 4.486 551 07 e-40 0.000 000 11 e-40 C m^2 |
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atomic unit of energy 4.359 743 94 e-18 0.000 000 22 e-18 J |
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atomic unit of force 8.238 722 06 e-8 0.000 000 41 e-8 N |
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atomic unit of length 0.529 177 208 59 e-10 0.000 000 000 36 e-10 m |
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atomic unit of mag. dipole mom. 1.854 801 830 e-23 0.000 000 046 e-23 J T^-1 |
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atomic unit of mag. flux density 2.350 517 382 e5 0.000 000 059 e5 T |
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atomic unit of magnetizability 7.891 036 433 e-29 0.000 000 027 e-29 J T^-2 |
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atomic unit of mass 9.109 382 15 e-31 0.000 000 45 e-31 kg |
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atomic unit of momentum 1.992 851 565 e-24 0.000 000 099 e-24 kg m s^-1 |
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atomic unit of permittivity 1.112 650 056... e-10 (exact) F m^-1 |
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atomic unit of time 2.418 884 326 505 e-17 0.000 000 000 016 e-17 s |
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atomic unit of velocity 2.187 691 2541 e6 0.000 000 0015 e6 m s^-1 |
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Avogadro constant 6.022 141 79 e23 0.000 000 30 e23 mol^-1 |
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Bohr magneton 927.400 915 e-26 0.000 023 e-26 J T^-1 |
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Bohr magneton in eV/T 5.788 381 7555 e-5 0.000 000 0079 e-5 eV T^-1 |
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Bohr magneton in Hz/T 13.996 246 04 e9 0.000 000 35 e9 Hz T^-1 |
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Bohr magneton in inverse meters per tesla 46.686 4515 0.000 0012 m^-1 T^-1 |
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Bohr magneton in K/T 0.671 7131 0.000 0012 K T^-1 |
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Bohr radius 0.529 177 208 59 e-10 0.000 000 000 36 e-10 m |
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Boltzmann constant 1.380 6504 e-23 0.000 0024 e-23 J K^-1 |
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Boltzmann constant in eV/K 8.617 343 e-5 0.000 015 e-5 eV K^-1 |
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Boltzmann constant in Hz/K 2.083 6644 e10 0.000 0036 e10 Hz K^-1 |
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Boltzmann constant in inverse meters per kelvin 69.503 56 0.000 12 m^-1 K^-1 |
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characteristic impedance of vacuum 376.730 313 461... (exact) ohm |
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classical electron radius 2.817 940 2894 e-15 0.000 000 0058 e-15 m |
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Compton wavelength 2.426 310 2175 e-12 0.000 000 0033 e-12 m |
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Compton wavelength over 2 pi 386.159 264 59 e-15 0.000 000 53 e-15 m |
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conductance quantum 7.748 091 7004 e-5 0.000 000 0053 e-5 S |
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conventional value of Josephson constant 483 597.9 e9 (exact) Hz V^-1 |
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conventional value of von Klitzing constant 25 812.807 (exact) ohm |
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Cu x unit 1.002 076 99 e-13 0.000 000 28 e-13 m |
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deuteron-electron mag. mom. ratio -4.664 345 537 e-4 0.000 000 039 e-4 |
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deuteron-electron mass ratio 3670.482 9654 0.000 0016 |
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deuteron g factor 0.857 438 2308 0.000 000 0072 |
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deuteron mag. mom. 0.433 073 465 e-26 0.000 000 011 e-26 J T^-1 |
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deuteron mag. mom. to Bohr magneton ratio 0.466 975 4556 e-3 0.000 000 0039 e-3 |
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deuteron mag. mom. to nuclear magneton ratio 0.857 438 2308 0.000 000 0072 |
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deuteron mass 3.343 583 20 e-27 0.000 000 17 e-27 kg |
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deuteron mass energy equivalent 3.005 062 72 e-10 0.000 000 15 e-10 J |
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deuteron mass energy equivalent in MeV 1875.612 793 0.000 047 MeV |
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deuteron mass in u 2.013 553 212 724 0.000 000 000 078 u |
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deuteron molar mass 2.013 553 212 724 e-3 0.000 000 000 078 e-3 kg mol^-1 |
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deuteron-neutron mag. mom. ratio -0.448 206 52 0.000 000 11 |
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deuteron-proton mag. mom. ratio 0.307 012 2070 0.000 000 0024 |
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deuteron-proton mass ratio 1.999 007 501 08 0.000 000 000 22 |
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deuteron rms charge radius 2.1402 e-15 0.0028 e-15 m |
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electric constant 8.854 187 817... e-12 (exact) F m^-1 |
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electron charge to mass quotient -1.758 820 150 e11 0.000 000 044 e11 C kg^-1 |
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electron-deuteron mag. mom. ratio -2143.923 498 0.000 018 |
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electron-deuteron mass ratio 2.724 437 1093 e-4 0.000 000 0012 e-4 |
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electron g factor -2.002 319 304 3622 0.000 000 000 0015 |
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electron gyromag. ratio 1.760 859 770 e11 0.000 000 044 e11 s^-1 T^-1 |
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electron gyromag. ratio over 2 pi 28 024.953 64 0.000 70 MHz T^-1 |
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electron mag. mom. -928.476 377 e-26 0.000 023 e-26 J T^-1 |
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electron mag. mom. anomaly 1.159 652 181 11 e-3 0.000 000 000 74 e-3 |
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electron mag. mom. to Bohr magneton ratio -1.001 159 652 181 11 0.000 000 000 000 74 |
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electron mag. mom. to nuclear magneton ratio -1838.281 970 92 0.000 000 80 |
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electron mass 9.109 382 15 e-31 0.000 000 45 e-31 kg |
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electron mass energy equivalent 8.187 104 38 e-14 0.000 000 41 e-14 J |
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electron mass energy equivalent in MeV 0.510 998 910 0.000 000 013 MeV |
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electron mass in u 5.485 799 0943 e-4 0.000 000 0023 e-4 u |
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electron molar mass 5.485 799 0943 e-7 0.000 000 0023 e-7 kg mol^-1 |
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electron-muon mag. mom. ratio 206.766 9877 0.000 0052 |
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electron-muon mass ratio 4.836 331 71 e-3 0.000 000 12 e-3 |
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electron-neutron mag. mom. ratio 960.920 50 0.000 23 |
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electron-neutron mass ratio 5.438 673 4459 e-4 0.000 000 0033 e-4 |
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electron-proton mag. mom. ratio -658.210 6848 0.000 0054 |
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electron-proton mass ratio 5.446 170 2177 e-4 0.000 000 0024 e-4 |
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electron-tau mass ratio 2.875 64 e-4 0.000 47 e-4 |
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electron to alpha particle mass ratio 1.370 933 555 70 e-4 0.000 000 000 58 e-4 |
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electron to shielded helion mag. mom. ratio 864.058 257 0.000 010 |
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electron to shielded proton mag. mom. ratio -658.227 5971 0.000 0072 |
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electron volt 1.602 176 487 e-19 0.000 000 040 e-19 J |
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electron volt-atomic mass unit relationship 1.073 544 188 e-9 0.000 000 027 e-9 u |
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electron volt-hartree relationship 3.674 932 540 e-2 0.000 000 092 e-2 E_h |
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electron volt-hertz relationship 2.417 989 454 e14 0.000 000 060 e14 Hz |
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electron volt-inverse meter relationship 8.065 544 65 e5 0.000 000 20 e5 m^-1 |
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electron volt-joule relationship 1.602 176 487 e-19 0.000 000 040 e-19 J |
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electron volt-kelvin relationship 1.160 4505 e4 0.000 0020 e4 K |
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electron volt-kilogram relationship 1.782 661 758 e-36 0.000 000 044 e-36 kg |
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elementary charge 1.602 176 487 e-19 0.000 000 040 e-19 C |
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elementary charge over h 2.417 989 454 e14 0.000 000 060 e14 A J^-1 |
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Faraday constant 96 485.3399 0.0024 C mol^-1 |
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Faraday constant for conventional electric current 96 485.3401 0.0048 C_90 mol^-1 |
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Fermi coupling constant 1.166 37 e-5 0.000 01 e-5 GeV^-2 |
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fine-structure constant 7.297 352 5376 e-3 0.000 000 0050 e-3 |
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first radiation constant 3.741 771 18 e-16 0.000 000 19 e-16 W m^2 |
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first radiation constant for spectral radiance 1.191 042 759 e-16 0.000 000 059 e-16 W m^2 sr^-1 |
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hartree-atomic mass unit relationship 2.921 262 2986 e-8 0.000 000 0042 e-8 u |
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hartree-electron volt relationship 27.211 383 86 0.000 000 68 eV |
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Hartree energy 4.359 743 94 e-18 0.000 000 22 e-18 J |
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Hartree energy in eV 27.211 383 86 0.000 000 68 eV |
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hartree-hertz relationship 6.579 683 920 722 e15 0.000 000 000 044 e15 Hz |
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hartree-inverse meter relationship 2.194 746 313 705 e7 0.000 000 000 015 e7 m^-1 |
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hartree-joule relationship 4.359 743 94 e-18 0.000 000 22 e-18 J |
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hartree-kelvin relationship 3.157 7465 e5 0.000 0055 e5 K |
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hartree-kilogram relationship 4.850 869 34 e-35 0.000 000 24 e-35 kg |
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helion-electron mass ratio 5495.885 2765 0.000 0052 |
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helion mass 5.006 411 92 e-27 0.000 000 25 e-27 kg |
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helion mass energy equivalent 4.499 538 64 e-10 0.000 000 22 e-10 J |
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helion mass energy equivalent in MeV 2808.391 383 0.000 070 MeV |
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helion mass in u 3.014 932 2473 0.000 000 0026 u |
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helion molar mass 3.014 932 2473 e-3 0.000 000 0026 e-3 kg mol^-1 |
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helion-proton mass ratio 2.993 152 6713 0.000 000 0026 |
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hertz-atomic mass unit relationship 4.439 821 6294 e-24 0.000 000 0064 e-24 u |
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hertz-electron volt relationship 4.135 667 33 e-15 0.000 000 10 e-15 eV |
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hertz-hartree relationship 1.519 829 846 006 e-16 0.000 000 000010e-16 E_h |
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hertz-inverse meter relationship 3.335 640 951... e-9 (exact) m^-1 |
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hertz-joule relationship 6.626 068 96 e-34 0.000 000 33 e-34 J |
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hertz-kelvin relationship 4.799 2374 e-11 0.000 0084 e-11 K |
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hertz-kilogram relationship 7.372 496 00 e-51 0.000 000 37 e-51 kg |
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inverse fine-structure constant 137.035 999 679 0.000 000 094 |
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inverse meter-atomic mass unit relationship 1.331 025 0394 e-15 0.000 000 0019 e-15 u |
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inverse meter-electron volt relationship 1.239 841 875 e-6 0.000 000 031 e-6 eV |
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inverse meter-hartree relationship 4.556 335 252 760 e-8 0.000 000 000 030 e-8 E_h |
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inverse meter-hertz relationship 299 792 458 (exact) Hz |
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inverse meter-joule relationship 1.986 445 501 e-25 0.000 000 099 e-25 J |
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inverse meter-kelvin relationship 1.438 7752 e-2 0.000 0025 e-2 K |
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inverse meter-kilogram relationship 2.210 218 70 e-42 0.000 000 11 e-42 kg |
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inverse of conductance quantum 12 906.403 7787 0.000 0088 ohm |
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Josephson constant 483 597.891 e9 0.012 e9 Hz V^-1 |
|
|
joule-atomic mass unit relationship 6.700 536 41 e9 0.000 000 33 e9 u |
|
|
joule-electron volt relationship 6.241 509 65 e18 0.000 000 16 e18 eV |
|
|
joule-hartree relationship 2.293 712 69 e17 0.000 000 11 e17 E_h |
|
|
joule-hertz relationship 1.509 190 450 e33 0.000 000 075 e33 Hz |
|
|
joule-inverse meter relationship 5.034 117 47 e24 0.000 000 25 e24 m^-1 |
|
|
joule-kelvin relationship 7.242 963 e22 0.000 013 e22 K |
|
|
joule-kilogram relationship 1.112 650 056... e-17 (exact) kg |
|
|
kelvin-atomic mass unit relationship 9.251 098 e-14 0.000 016 e-14 u |
|
|
kelvin-electron volt relationship 8.617 343 e-5 0.000 015 e-5 eV |
|
|
kelvin-hartree relationship 3.166 8153 e-6 0.000 0055 e-6 E_h |
|
|
kelvin-hertz relationship 2.083 6644 e10 0.000 0036 e10 Hz |
|
|
kelvin-inverse meter relationship 69.503 56 0.000 12 m^-1 |
|
|
kelvin-joule relationship 1.380 6504 e-23 0.000 0024 e-23 J |
|
|
kelvin-kilogram relationship 1.536 1807 e-40 0.000 0027 e-40 kg |
|
|
kilogram-atomic mass unit relationship 6.022 141 79 e26 0.000 000 30 e26 u |
|
|
kilogram-electron volt relationship 5.609 589 12 e35 0.000 000 14 e35 eV |
|
|
kilogram-hartree relationship 2.061 486 16 e34 0.000 000 10 e34 E_h |
|
|
kilogram-hertz relationship 1.356 392 733 e50 0.000 000 068 e50 Hz |
|
|
kilogram-inverse meter relationship 4.524 439 15 e41 0.000 000 23 e41 m^-1 |
|
|
kilogram-joule relationship 8.987 551 787... e16 (exact) J |
|
|
kilogram-kelvin relationship 6.509 651 e39 0.000 011 e39 K |
|
|
lattice parameter of silicon 543.102 064 e-12 0.000 014 e-12 m |
|
|
Loschmidt constant (273.15 K, 101.325 kPa) 2.686 7774 e25 0.000 0047 e25 m^-3 |
|
|
mag. constant 12.566 370 614... e-7 (exact) N A^-2 |
|
|
mag. flux quantum 2.067 833 667 e-15 0.000 000 052 e-15 Wb |
|
|
molar gas constant 8.314 472 0.000 015 J mol^-1 K^-1 |
|
|
molar mass constant 1 e-3 (exact) kg mol^-1 |
|
|
molar mass of carbon-12 12 e-3 (exact) kg mol^-1 |
|
|
molar Planck constant 3.990 312 6821 e-10 0.000 000 0057 e-10 J s mol^-1 |
|
|
molar Planck constant times c 0.119 626 564 72 0.000 000 000 17 J m mol^-1 |
|
|
molar volume of ideal gas (273.15 K, 100 kPa) 22.710 981 e-3 0.000 040 e-3 m^3 mol^-1 |
|
|
molar volume of ideal gas (273.15 K, 101.325 kPa) 22.413 996 e-3 0.000 039 e-3 m^3 mol^-1 |
|
|
molar volume of silicon 12.058 8349 e-6 0.000 0011 e-6 m^3 mol^-1 |
|
|
Mo x unit 1.002 099 55 e-13 0.000 000 53 e-13 m |
|
|
muon Compton wavelength 11.734 441 04 e-15 0.000 000 30 e-15 m |
|
|
muon Compton wavelength over 2 pi 1.867 594 295 e-15 0.000 000 047 e-15 m |
|
|
muon-electron mass ratio 206.768 2823 0.000 0052 |
|
|
muon g factor -2.002 331 8414 0.000 000 0012 |
|
|
muon mag. mom. -4.490 447 86 e-26 0.000 000 16 e-26 J T^-1 |
|
|
muon mag. mom. anomaly 1.165 920 69 e-3 0.000 000 60 e-3 |
|
|
muon mag. mom. to Bohr magneton ratio -4.841 970 49 e-3 0.000 000 12 e-3 |
|
|
muon mag. mom. to nuclear magneton ratio -8.890 597 05 0.000 000 23 |
|
|
muon mass 1.883 531 30 e-28 0.000 000 11 e-28 kg |
|
|
muon mass energy equivalent 1.692 833 510 e-11 0.000 000 095 e-11 J |
|
|
muon mass energy equivalent in MeV 105.658 3668 0.000 0038 MeV |
|
|
muon mass in u 0.113 428 9256 0.000 000 0029 u |
|
|
muon molar mass 0.113 428 9256 e-3 0.000 000 0029 e-3 kg mol^-1 |
|
|
muon-neutron mass ratio 0.112 454 5167 0.000 000 0029 |
|
|
muon-proton mag. mom. ratio -3.183 345 137 0.000 000 085 |
|
|
muon-proton mass ratio 0.112 609 5261 0.000 000 0029 |
|
|
muon-tau mass ratio 5.945 92 e-2 0.000 97 e-2 |
|
|
natural unit of action 1.054 571 628 e-34 0.000 000 053 e-34 J s |
|
|
natural unit of action in eV s 6.582 118 99 e-16 0.000 000 16 e-16 eV s |
|
|
natural unit of energy 8.187 104 38 e-14 0.000 000 41 e-14 J |
|
|
natural unit of energy in MeV 0.510 998 910 0.000 000 013 MeV |
|
|
natural unit of length 386.159 264 59 e-15 0.000 000 53 e-15 m |
|
|
natural unit of mass 9.109 382 15 e-31 0.000 000 45 e-31 kg |
|
|
natural unit of momentum 2.730 924 06 e-22 0.000 000 14 e-22 kg m s^-1 |
|
|
natural unit of momentum in MeV/c 0.510 998 910 0.000 000 013 MeV/c |
|
|
natural unit of time 1.288 088 6570 e-21 0.000 000 0018 e-21 s |
|
|
natural unit of velocity 299 792 458 (exact) m s^-1 |
|
|
neutron Compton wavelength 1.319 590 8951 e-15 0.000 000 0020 e-15 m |
|
|
neutron Compton wavelength over 2 pi 0.210 019 413 82 e-15 0.000 000 000 31 e-15 m |
|
|
neutron-electron mag. mom. ratio 1.040 668 82 e-3 0.000 000 25 e-3 |
|
|
neutron-electron mass ratio 1838.683 6605 0.000 0011 |
|
|
neutron g factor -3.826 085 45 0.000 000 90 |
|
|
neutron gyromag. ratio 1.832 471 85 e8 0.000 000 43 e8 s^-1 T^-1 |
|
|
neutron gyromag. ratio over 2 pi 29.164 6954 0.000 0069 MHz T^-1 |
|
|
neutron mag. mom. -0.966 236 41 e-26 0.000 000 23 e-26 J T^-1 |
|
|
neutron mag. mom. to Bohr magneton ratio -1.041 875 63 e-3 0.000 000 25 e-3 |
|
|
neutron mag. mom. to nuclear magneton ratio -1.913 042 73 0.000 000 45 |
|
|
neutron mass 1.674 927 211 e-27 0.000 000 084 e-27 kg |
|
|
neutron mass energy equivalent 1.505 349 505 e-10 0.000 000 075 e-10 J |
|
|
neutron mass energy equivalent in MeV 939.565 346 0.000 023 MeV |
|
|
neutron mass in u 1.008 664 915 97 0.000 000 000 43 u |
|
|
neutron molar mass 1.008 664 915 97 e-3 0.000 000 000 43 e-3 kg mol^-1 |
|
|
neutron-muon mass ratio 8.892 484 09 0.000 000 23 |
|
|
neutron-proton mag. mom. ratio -0.684 979 34 0.000 000 16 |
|
|
neutron-proton mass ratio 1.001 378 419 18 0.000 000 000 46 |
|
|
neutron-tau mass ratio 0.528 740 0.000 086 |
|
|
neutron to shielded proton mag. mom. ratio -0.684 996 94 0.000 000 16 |
|
|
Newtonian constant of gravitation 6.674 28 e-11 0.000 67 e-11 m^3 kg^-1 s^-2 |
|
|
Newtonian constant of gravitation over h-bar c 6.708 81 e-39 0.000 67 e-39 (GeV/c^2)^-2 |
|
|
nuclear magneton 5.050 783 24 e-27 0.000 000 13 e-27 J T^-1 |
|
|
nuclear magneton in eV/T 3.152 451 2326 e-8 0.000 000 0045 e-8 eV T^-1 |
|
|
nuclear magneton in inverse meters per tesla 2.542 623 616 e-2 0.000 000 064 e-2 m^-1 T^-1 |
|
|
nuclear magneton in K/T 3.658 2637 e-4 0.000 0064 e-4 K T^-1 |
|
|
nuclear magneton in MHz/T 7.622 593 84 0.000 000 19 MHz T^-1 |
|
|
Planck constant 6.626 068 96 e-34 0.000 000 33 e-34 J s |
|
|
Planck constant in eV s 4.135 667 33 e-15 0.000 000 10 e-15 eV s |
|
|
Planck constant over 2 pi 1.054 571 628 e-34 0.000 000 053 e-34 J s |
|
|
Planck constant over 2 pi in eV s 6.582 118 99 e-16 0.000 000 16 e-16 eV s |
|
|
Planck constant over 2 pi times c in MeV fm 197.326 9631 0.000 0049 MeV fm |
|
|
Planck length 1.616 252 e-35 0.000 081 e-35 m |
|
|
Planck mass 2.176 44 e-8 0.000 11 e-8 kg |
|
|
Planck mass energy equivalent in GeV 1.220 892 e19 0.000 061 e19 GeV |
|
|
Planck temperature 1.416 785 e32 0.000 071 e32 K |
|
|
Planck time 5.391 24 e-44 0.000 27 e-44 s |
|
|
proton charge to mass quotient 9.578 833 92 e7 0.000 000 24 e7 C kg^-1 |
|
|
proton Compton wavelength 1.321 409 8446 e-15 0.000 000 0019 e-15 m |
|
|
proton Compton wavelength over 2 pi 0.210 308 908 61 e-15 0.000 000 000 30 e-15 m |
|
|
proton-electron mass ratio 1836.152 672 47 0.000 000 80 |
|
|
proton g factor 5.585 694 713 0.000 000 046 |
|
|
proton gyromag. ratio 2.675 222 099 e8 0.000 000 070 e8 s^-1 T^-1 |
|
|
proton gyromag. ratio over 2 pi 42.577 4821 0.000 0011 MHz T^-1 |
|
|
proton mag. mom. 1.410 606 662 e-26 0.000 000 037 e-26 J T^-1 |
|
|
proton mag. mom. to Bohr magneton ratio 1.521 032 209 e-3 0.000 000 012 e-3 |
|
|
proton mag. mom. to nuclear magneton ratio 2.792 847 356 0.000 000 023 |
|
|
proton mag. shielding correction 25.694 e-6 0.014 e-6 |
|
|
proton mass 1.672 621 637 e-27 0.000 000 083 e-27 kg |
|
|
proton mass energy equivalent 1.503 277 359 e-10 0.000 000 075 e-10 J |
|
|
proton mass energy equivalent in MeV 938.272 013 0.000 023 MeV |
|
|
proton mass in u 1.007 276 466 77 0.000 000 000 10 u |
|
|
proton molar mass 1.007 276 466 77 e-3 0.000 000 000 10 e-3 kg mol^-1 |
|
|
proton-muon mass ratio 8.880 243 39 0.000 000 23 |
|
|
proton-neutron mag. mom. ratio -1.459 898 06 0.000 000 34 |
|
|
proton-neutron mass ratio 0.998 623 478 24 0.000 000 000 46 |
|
|
proton rms charge radius 0.8768 e-15 0.0069 e-15 m |
|
|
proton-tau mass ratio 0.528 012 0.000 086 |
|
|
quantum of circulation 3.636 947 5199 e-4 0.000 000 0050 e-4 m^2 s^-1 |
|
|
quantum of circulation times 2 7.273 895 040 e-4 0.000 000 010 e-4 m^2 s^-1 |
|
|
Rydberg constant 10 973 731.568 527 0.000 073 m^-1 |
|
|
Rydberg constant times c in Hz 3.289 841 960 361 e15 0.000 000 000 022 e15 Hz |
|
|
Rydberg constant times hc in eV 13.605 691 93 0.000 000 34 eV |
|
|
Rydberg constant times hc in J 2.179 871 97 e-18 0.000 000 11 e-18 J |
|
|
Sackur-Tetrode constant (1 K, 100 kPa) -1.151 7047 0.000 0044 |
|
|
Sackur-Tetrode constant (1 K, 101.325 kPa) -1.164 8677 0.000 0044 |
|
|
second radiation constant 1.438 7752 e-2 0.000 0025 e-2 m K |
|
|
shielded helion gyromag. ratio 2.037 894 730 e8 0.000 000 056 e8 s^-1 T^-1 |
|
|
shielded helion gyromag. ratio over 2 pi 32.434 101 98 0.000 000 90 MHz T^-1 |
|
|
shielded helion mag. mom. -1.074 552 982 e-26 0.000 000 030 e-26 J T^-1 |
|
|
shielded helion mag. mom. to Bohr magneton ratio -1.158 671 471 e-3 0.000 000 014 e-3 |
|
|
shielded helion mag. mom. to nuclear magneton ratio -2.127 497 718 0.000 000 025 |
|
|
shielded helion to proton mag. mom. ratio -0.761 766 558 0.000 000 011 |
|
|
shielded helion to shielded proton mag. mom. ratio -0.761 786 1313 0.000 000 0033 |
|
|
shielded proton gyromag. ratio 2.675 153 362 e8 0.000 000 073 e8 s^-1 T^-1 |
|
|
shielded proton gyromag. ratio over 2 pi 42.576 3881 0.000 0012 MHz T^-1 |
|
|
shielded proton mag. mom. 1.410 570 419 e-26 0.000 000 038 e-26 J T^-1 |
|
|
shielded proton mag. mom. to Bohr magneton ratio 1.520 993 128 e-3 0.000 000 017 e-3 |
|
|
shielded proton mag. mom. to nuclear magneton ratio 2.792 775 598 0.000 000 030 |
|
|
speed of light in vacuum 299 792 458 (exact) m s^-1 |
|
|
standard acceleration of gravity 9.806 65 (exact) m s^-2 |
|
|
standard atmosphere 101 325 (exact) Pa |
|
|
Stefan-Boltzmann constant 5.670 400 e-8 0.000 040 e-8 W m^-2 K^-4 |
|
|
tau Compton wavelength 0.697 72 e-15 0.000 11 e-15 m |
|
|
tau Compton wavelength over 2 pi 0.111 046 e-15 0.000 018 e-15 m |
|
|
tau-electron mass ratio 3477.48 0.57 |
|
|
tau mass 3.167 77 e-27 0.000 52 e-27 kg |
|
|
tau mass energy equivalent 2.847 05 e-10 0.000 46 e-10 J |
|
|
tau mass energy equivalent in MeV 1776.99 0.29 MeV |
|
|
tau mass in u 1.907 68 0.000 31 u |
|
|
tau molar mass 1.907 68 e-3 0.000 31 e-3 kg mol^-1 |
|
|
tau-muon mass ratio 16.8183 0.0027 |
|
|
tau-neutron mass ratio 1.891 29 0.000 31 |
|
|
tau-proton mass ratio 1.893 90 0.000 31 |
|
|
Thomson cross section 0.665 245 8558 e-28 0.000 000 0027 e-28 m^2 |
|
|
triton-electron mag. mom. ratio -1.620 514 423 e-3 0.000 000 021 e-3 |
|
|
triton-electron mass ratio 5496.921 5269 0.000 0051 |
|
|
triton g factor 5.957 924 896 0.000 000 076 |
|
|
triton mag. mom. 1.504 609 361 e-26 0.000 000 042 e-26 J T^-1 |
|
|
triton mag. mom. to Bohr magneton ratio 1.622 393 657 e-3 0.000 000 021 e-3 |
|
|
triton mag. mom. to nuclear magneton ratio 2.978 962 448 0.000 000 038 |
|
|
triton mass 5.007 355 88 e-27 0.000 000 25 e-27 kg |
|
|
triton mass energy equivalent 4.500 387 03 e-10 0.000 000 22 e-10 J |
|
|
triton mass energy equivalent in MeV 2808.920 906 0.000 070 MeV |
|
|
triton mass in u 3.015 500 7134 0.000 000 0025 u |
|
|
triton molar mass 3.015 500 7134 e-3 0.000 000 0025 e-3 kg mol^-1 |
|
|
triton-neutron mag. mom. ratio -1.557 185 53 0.000 000 37 |
|
|
triton-proton mag. mom. ratio 1.066 639 908 0.000 000 010 |
|
|
triton-proton mass ratio 2.993 717 0309 0.000 000 0025 |
|
|
unified atomic mass unit 1.660 538 782 e-27 0.000 000 083 e-27 kg |
|
|
von Klitzing constant 25 812.807 557 0.000 018 ohm |
|
|
weak mixing angle 0.222 55 0.000 56 |
|
|
Wien frequency displacement law constant 5.878 933 e10 0.000 010 e10 Hz K^-1 |
|
|
Wien wavelength displacement law constant 2.897 7685 e-3 0.000 0051 e-3 m K""" |
|
|
|
|
|
|
|
|
def exact2006(exact): |
|
|
mu0 = 4e-7 * math.pi |
|
|
c = exact['speed of light in vacuum'] |
|
|
epsilon0 = 1 / (mu0 * c**2) |
|
|
replace = { |
|
|
'mag. constant': mu0, |
|
|
'electric constant': epsilon0, |
|
|
'atomic unit of permittivity': 4*math.pi*epsilon0, |
|
|
'characteristic impedance of vacuum': math.sqrt(mu0 / epsilon0), |
|
|
'hertz-inverse meter relationship': 1/c, |
|
|
'joule-kilogram relationship': 1/c**2, |
|
|
'kilogram-joule relationship': c**2, |
|
|
} |
|
|
return replace |
|
|
|
|
|
|
|
|
txt2010 = """\ |
|
|
{220} lattice spacing of silicon 192.015 5714 e-12 0.000 0032 e-12 m |
|
|
alpha particle-electron mass ratio 7294.299 5361 0.000 0029 |
|
|
alpha particle mass 6.644 656 75 e-27 0.000 000 29 e-27 kg |
|
|
alpha particle mass energy equivalent 5.971 919 67 e-10 0.000 000 26 e-10 J |
|
|
alpha particle mass energy equivalent in MeV 3727.379 240 0.000 082 MeV |
|
|
alpha particle mass in u 4.001 506 179 125 0.000 000 000 062 u |
|
|
alpha particle molar mass 4.001 506 179 125 e-3 0.000 000 000 062 e-3 kg mol^-1 |
|
|
alpha particle-proton mass ratio 3.972 599 689 33 0.000 000 000 36 |
|
|
Angstrom star 1.000 014 95 e-10 0.000 000 90 e-10 m |
|
|
atomic mass constant 1.660 538 921 e-27 0.000 000 073 e-27 kg |
|
|
atomic mass constant energy equivalent 1.492 417 954 e-10 0.000 000 066 e-10 J |
|
|
atomic mass constant energy equivalent in MeV 931.494 061 0.000 021 MeV |
|
|
atomic mass unit-electron volt relationship 931.494 061 e6 0.000 021 e6 eV |
|
|
atomic mass unit-hartree relationship 3.423 177 6845 e7 0.000 000 0024 e7 E_h |
|
|
atomic mass unit-hertz relationship 2.252 342 7168 e23 0.000 000 0016 e23 Hz |
|
|
atomic mass unit-inverse meter relationship 7.513 006 6042 e14 0.000 000 0053 e14 m^-1 |
|
|
atomic mass unit-joule relationship 1.492 417 954 e-10 0.000 000 066 e-10 J |
|
|
atomic mass unit-kelvin relationship 1.080 954 08 e13 0.000 000 98 e13 K |
|
|
atomic mass unit-kilogram relationship 1.660 538 921 e-27 0.000 000 073 e-27 kg |
|
|
atomic unit of 1st hyperpolarizability 3.206 361 449 e-53 0.000 000 071 e-53 C^3 m^3 J^-2 |
|
|
atomic unit of 2nd hyperpolarizability 6.235 380 54 e-65 0.000 000 28 e-65 C^4 m^4 J^-3 |
|
|
atomic unit of action 1.054 571 726 e-34 0.000 000 047 e-34 J s |
|
|
atomic unit of charge 1.602 176 565 e-19 0.000 000 035 e-19 C |
|
|
atomic unit of charge density 1.081 202 338 e12 0.000 000 024 e12 C m^-3 |
|
|
atomic unit of current 6.623 617 95 e-3 0.000 000 15 e-3 A |
|
|
atomic unit of electric dipole mom. 8.478 353 26 e-30 0.000 000 19 e-30 C m |
|
|
atomic unit of electric field 5.142 206 52 e11 0.000 000 11 e11 V m^-1 |
|
|
atomic unit of electric field gradient 9.717 362 00 e21 0.000 000 21 e21 V m^-2 |
|
|
atomic unit of electric polarizability 1.648 777 2754 e-41 0.000 000 0016 e-41 C^2 m^2 J^-1 |
|
|
atomic unit of electric potential 27.211 385 05 0.000 000 60 V |
|
|
atomic unit of electric quadrupole mom. 4.486 551 331 e-40 0.000 000 099 e-40 C m^2 |
|
|
atomic unit of energy 4.359 744 34 e-18 0.000 000 19 e-18 J |
|
|
atomic unit of force 8.238 722 78 e-8 0.000 000 36 e-8 N |
|
|
atomic unit of length 0.529 177 210 92 e-10 0.000 000 000 17 e-10 m |
|
|
atomic unit of mag. dipole mom. 1.854 801 936 e-23 0.000 000 041 e-23 J T^-1 |
|
|
atomic unit of mag. flux density 2.350 517 464 e5 0.000 000 052 e5 T |
|
|
atomic unit of magnetizability 7.891 036 607 e-29 0.000 000 013 e-29 J T^-2 |
|
|
atomic unit of mass 9.109 382 91 e-31 0.000 000 40 e-31 kg |
|
|
atomic unit of mom.um 1.992 851 740 e-24 0.000 000 088 e-24 kg m s^-1 |
|
|
atomic unit of permittivity 1.112 650 056... e-10 (exact) F m^-1 |
|
|
atomic unit of time 2.418 884 326 502e-17 0.000 000 000 012e-17 s |
|
|
atomic unit of velocity 2.187 691 263 79 e6 0.000 000 000 71 e6 m s^-1 |
|
|
Avogadro constant 6.022 141 29 e23 0.000 000 27 e23 mol^-1 |
|
|
Bohr magneton 927.400 968 e-26 0.000 020 e-26 J T^-1 |
|
|
Bohr magneton in eV/T 5.788 381 8066 e-5 0.000 000 0038 e-5 eV T^-1 |
|
|
Bohr magneton in Hz/T 13.996 245 55 e9 0.000 000 31 e9 Hz T^-1 |
|
|
Bohr magneton in inverse meters per tesla 46.686 4498 0.000 0010 m^-1 T^-1 |
|
|
Bohr magneton in K/T 0.671 713 88 0.000 000 61 K T^-1 |
|
|
Bohr radius 0.529 177 210 92 e-10 0.000 000 000 17 e-10 m |
|
|
Boltzmann constant 1.380 6488 e-23 0.000 0013 e-23 J K^-1 |
|
|
Boltzmann constant in eV/K 8.617 3324 e-5 0.000 0078 e-5 eV K^-1 |
|
|
Boltzmann constant in Hz/K 2.083 6618 e10 0.000 0019 e10 Hz K^-1 |
|
|
Boltzmann constant in inverse meters per kelvin 69.503 476 0.000 063 m^-1 K^-1 |
|
|
characteristic impedance of vacuum 376.730 313 461... (exact) ohm |
|
|
classical electron radius 2.817 940 3267 e-15 0.000 000 0027 e-15 m |
|
|
Compton wavelength 2.426 310 2389 e-12 0.000 000 0016 e-12 m |
|
|
Compton wavelength over 2 pi 386.159 268 00 e-15 0.000 000 25 e-15 m |
|
|
conductance quantum 7.748 091 7346 e-5 0.000 000 0025 e-5 S |
|
|
conventional value of Josephson constant 483 597.9 e9 (exact) Hz V^-1 |
|
|
conventional value of von Klitzing constant 25 812.807 (exact) ohm |
|
|
Cu x unit 1.002 076 97 e-13 0.000 000 28 e-13 m |
|
|
deuteron-electron mag. mom. ratio -4.664 345 537 e-4 0.000 000 039 e-4 |
|
|
deuteron-electron mass ratio 3670.482 9652 0.000 0015 |
|
|
deuteron g factor 0.857 438 2308 0.000 000 0072 |
|
|
deuteron mag. mom. 0.433 073 489 e-26 0.000 000 010 e-26 J T^-1 |
|
|
deuteron mag. mom. to Bohr magneton ratio 0.466 975 4556 e-3 0.000 000 0039 e-3 |
|
|
deuteron mag. mom. to nuclear magneton ratio 0.857 438 2308 0.000 000 0072 |
|
|
deuteron mass 3.343 583 48 e-27 0.000 000 15 e-27 kg |
|
|
deuteron mass energy equivalent 3.005 062 97 e-10 0.000 000 13 e-10 J |
|
|
deuteron mass energy equivalent in MeV 1875.612 859 0.000 041 MeV |
|
|
deuteron mass in u 2.013 553 212 712 0.000 000 000 077 u |
|
|
deuteron molar mass 2.013 553 212 712 e-3 0.000 000 000 077 e-3 kg mol^-1 |
|
|
deuteron-neutron mag. mom. ratio -0.448 206 52 0.000 000 11 |
|
|
deuteron-proton mag. mom. ratio 0.307 012 2070 0.000 000 0024 |
|
|
deuteron-proton mass ratio 1.999 007 500 97 0.000 000 000 18 |
|
|
deuteron rms charge radius 2.1424 e-15 0.0021 e-15 m |
|
|
electric constant 8.854 187 817... e-12 (exact) F m^-1 |
|
|
electron charge to mass quotient -1.758 820 088 e11 0.000 000 039 e11 C kg^-1 |
|
|
electron-deuteron mag. mom. ratio -2143.923 498 0.000 018 |
|
|
electron-deuteron mass ratio 2.724 437 1095 e-4 0.000 000 0011 e-4 |
|
|
electron g factor -2.002 319 304 361 53 0.000 000 000 000 53 |
|
|
electron gyromag. ratio 1.760 859 708 e11 0.000 000 039 e11 s^-1 T^-1 |
|
|
electron gyromag. ratio over 2 pi 28 024.952 66 0.000 62 MHz T^-1 |
|
|
electron-helion mass ratio 1.819 543 0761 e-4 0.000 000 0017 e-4 |
|
|
electron mag. mom. -928.476 430 e-26 0.000 021 e-26 J T^-1 |
|
|
electron mag. mom. anomaly 1.159 652 180 76 e-3 0.000 000 000 27 e-3 |
|
|
electron mag. mom. to Bohr magneton ratio -1.001 159 652 180 76 0.000 000 000 000 27 |
|
|
electron mag. mom. to nuclear magneton ratio -1838.281 970 90 0.000 000 75 |
|
|
electron mass 9.109 382 91 e-31 0.000 000 40 e-31 kg |
|
|
electron mass energy equivalent 8.187 105 06 e-14 0.000 000 36 e-14 J |
|
|
electron mass energy equivalent in MeV 0.510 998 928 0.000 000 011 MeV |
|
|
electron mass in u 5.485 799 0946 e-4 0.000 000 0022 e-4 u |
|
|
electron molar mass 5.485 799 0946 e-7 0.000 000 0022 e-7 kg mol^-1 |
|
|
electron-muon mag. mom. ratio 206.766 9896 0.000 0052 |
|
|
electron-muon mass ratio 4.836 331 66 e-3 0.000 000 12 e-3 |
|
|
electron-neutron mag. mom. ratio 960.920 50 0.000 23 |
|
|
electron-neutron mass ratio 5.438 673 4461 e-4 0.000 000 0032 e-4 |
|
|
electron-proton mag. mom. ratio -658.210 6848 0.000 0054 |
|
|
electron-proton mass ratio 5.446 170 2178 e-4 0.000 000 0022 e-4 |
|
|
electron-tau mass ratio 2.875 92 e-4 0.000 26 e-4 |
|
|
electron to alpha particle mass ratio 1.370 933 555 78 e-4 0.000 000 000 55 e-4 |
|
|
electron to shielded helion mag. mom. ratio 864.058 257 0.000 010 |
|
|
electron to shielded proton mag. mom. ratio -658.227 5971 0.000 0072 |
|
|
electron-triton mass ratio 1.819 200 0653 e-4 0.000 000 0017 e-4 |
|
|
electron volt 1.602 176 565 e-19 0.000 000 035 e-19 J |
|
|
electron volt-atomic mass unit relationship 1.073 544 150 e-9 0.000 000 024 e-9 u |
|
|
electron volt-hartree relationship 3.674 932 379 e-2 0.000 000 081 e-2 E_h |
|
|
electron volt-hertz relationship 2.417 989 348 e14 0.000 000 053 e14 Hz |
|
|
electron volt-inverse meter relationship 8.065 544 29 e5 0.000 000 18 e5 m^-1 |
|
|
electron volt-joule relationship 1.602 176 565 e-19 0.000 000 035 e-19 J |
|
|
electron volt-kelvin relationship 1.160 4519 e4 0.000 0011 e4 K |
|
|
electron volt-kilogram relationship 1.782 661 845 e-36 0.000 000 039 e-36 kg |
|
|
elementary charge 1.602 176 565 e-19 0.000 000 035 e-19 C |
|
|
elementary charge over h 2.417 989 348 e14 0.000 000 053 e14 A J^-1 |
|
|
Faraday constant 96 485.3365 0.0021 C mol^-1 |
|
|
Faraday constant for conventional electric current 96 485.3321 0.0043 C_90 mol^-1 |
|
|
Fermi coupling constant 1.166 364 e-5 0.000 005 e-5 GeV^-2 |
|
|
fine-structure constant 7.297 352 5698 e-3 0.000 000 0024 e-3 |
|
|
first radiation constant 3.741 771 53 e-16 0.000 000 17 e-16 W m^2 |
|
|
first radiation constant for spectral radiance 1.191 042 869 e-16 0.000 000 053 e-16 W m^2 sr^-1 |
|
|
hartree-atomic mass unit relationship 2.921 262 3246 e-8 0.000 000 0021 e-8 u |
|
|
hartree-electron volt relationship 27.211 385 05 0.000 000 60 eV |
|
|
Hartree energy 4.359 744 34 e-18 0.000 000 19 e-18 J |
|
|
Hartree energy in eV 27.211 385 05 0.000 000 60 eV |
|
|
hartree-hertz relationship 6.579 683 920 729 e15 0.000 000 000 033 e15 Hz |
|
|
hartree-inverse meter relationship 2.194 746 313 708 e7 0.000 000 000 011 e7 m^-1 |
|
|
hartree-joule relationship 4.359 744 34 e-18 0.000 000 19 e-18 J |
|
|
hartree-kelvin relationship 3.157 7504 e5 0.000 0029 e5 K |
|
|
hartree-kilogram relationship 4.850 869 79 e-35 0.000 000 21 e-35 kg |
|
|
helion-electron mass ratio 5495.885 2754 0.000 0050 |
|
|
helion g factor -4.255 250 613 0.000 000 050 |
|
|
helion mag. mom. -1.074 617 486 e-26 0.000 000 027 e-26 J T^-1 |
|
|
helion mag. mom. to Bohr magneton ratio -1.158 740 958 e-3 0.000 000 014 e-3 |
|
|
helion mag. mom. to nuclear magneton ratio -2.127 625 306 0.000 000 025 |
|
|
helion mass 5.006 412 34 e-27 0.000 000 22 e-27 kg |
|
|
helion mass energy equivalent 4.499 539 02 e-10 0.000 000 20 e-10 J |
|
|
helion mass energy equivalent in MeV 2808.391 482 0.000 062 MeV |
|
|
helion mass in u 3.014 932 2468 0.000 000 0025 u |
|
|
helion molar mass 3.014 932 2468 e-3 0.000 000 0025 e-3 kg mol^-1 |
|
|
helion-proton mass ratio 2.993 152 6707 0.000 000 0025 |
|
|
hertz-atomic mass unit relationship 4.439 821 6689 e-24 0.000 000 0031 e-24 u |
|
|
hertz-electron volt relationship 4.135 667 516 e-15 0.000 000 091 e-15 eV |
|
|
hertz-hartree relationship 1.519 829 8460045e-16 0.000 000 0000076e-16 E_h |
|
|
hertz-inverse meter relationship 3.335 640 951... e-9 (exact) m^-1 |
|
|
hertz-joule relationship 6.626 069 57 e-34 0.000 000 29 e-34 J |
|
|
hertz-kelvin relationship 4.799 2434 e-11 0.000 0044 e-11 K |
|
|
hertz-kilogram relationship 7.372 496 68 e-51 0.000 000 33 e-51 kg |
|
|
inverse fine-structure constant 137.035 999 074 0.000 000 044 |
|
|
inverse meter-atomic mass unit relationship 1.331 025 051 20 e-15 0.000 000 000 94 e-15 u |
|
|
inverse meter-electron volt relationship 1.239 841 930 e-6 0.000 000 027 e-6 eV |
|
|
inverse meter-hartree relationship 4.556 335 252 755 e-8 0.000 000 000 023 e-8 E_h |
|
|
inverse meter-hertz relationship 299 792 458 (exact) Hz |
|
|
inverse meter-joule relationship 1.986 445 684 e-25 0.000 000 088 e-25 J |
|
|
inverse meter-kelvin relationship 1.438 7770 e-2 0.000 0013 e-2 K |
|
|
inverse meter-kilogram relationship 2.210 218 902 e-42 0.000 000 098 e-42 kg |
|
|
inverse of conductance quantum 12 906.403 7217 0.000 0042 ohm |
|
|
Josephson constant 483 597.870 e9 0.011 e9 Hz V^-1 |
|
|
joule-atomic mass unit relationship 6.700 535 85 e9 0.000 000 30 e9 u |
|
|
joule-electron volt relationship 6.241 509 34 e18 0.000 000 14 e18 eV |
|
|
joule-hartree relationship 2.293 712 48 e17 0.000 000 10 e17 E_h |
|
|
joule-hertz relationship 1.509 190 311 e33 0.000 000 067 e33 Hz |
|
|
joule-inverse meter relationship 5.034 117 01 e24 0.000 000 22 e24 m^-1 |
|
|
joule-kelvin relationship 7.242 9716 e22 0.000 0066 e22 K |
|
|
joule-kilogram relationship 1.112 650 056... e-17 (exact) kg |
|
|
kelvin-atomic mass unit relationship 9.251 0868 e-14 0.000 0084 e-14 u |
|
|
kelvin-electron volt relationship 8.617 3324 e-5 0.000 0078 e-5 eV |
|
|
kelvin-hartree relationship 3.166 8114 e-6 0.000 0029 e-6 E_h |
|
|
kelvin-hertz relationship 2.083 6618 e10 0.000 0019 e10 Hz |
|
|
kelvin-inverse meter relationship 69.503 476 0.000 063 m^-1 |
|
|
kelvin-joule relationship 1.380 6488 e-23 0.000 0013 e-23 J |
|
|
kelvin-kilogram relationship 1.536 1790 e-40 0.000 0014 e-40 kg |
|
|
kilogram-atomic mass unit relationship 6.022 141 29 e26 0.000 000 27 e26 u |
|
|
kilogram-electron volt relationship 5.609 588 85 e35 0.000 000 12 e35 eV |
|
|
kilogram-hartree relationship 2.061 485 968 e34 0.000 000 091 e34 E_h |
|
|
kilogram-hertz relationship 1.356 392 608 e50 0.000 000 060 e50 Hz |
|
|
kilogram-inverse meter relationship 4.524 438 73 e41 0.000 000 20 e41 m^-1 |
|
|
kilogram-joule relationship 8.987 551 787... e16 (exact) J |
|
|
kilogram-kelvin relationship 6.509 6582 e39 0.000 0059 e39 K |
|
|
lattice parameter of silicon 543.102 0504 e-12 0.000 0089 e-12 m |
|
|
Loschmidt constant (273.15 K, 100 kPa) 2.651 6462 e25 0.000 0024 e25 m^-3 |
|
|
Loschmidt constant (273.15 K, 101.325 kPa) 2.686 7805 e25 0.000 0024 e25 m^-3 |
|
|
mag. constant 12.566 370 614... e-7 (exact) N A^-2 |
|
|
mag. flux quantum 2.067 833 758 e-15 0.000 000 046 e-15 Wb |
|
|
molar gas constant 8.314 4621 0.000 0075 J mol^-1 K^-1 |
|
|
molar mass constant 1 e-3 (exact) kg mol^-1 |
|
|
molar mass of carbon-12 12 e-3 (exact) kg mol^-1 |
|
|
molar Planck constant 3.990 312 7176 e-10 0.000 000 0028 e-10 J s mol^-1 |
|
|
molar Planck constant times c 0.119 626 565 779 0.000 000 000 084 J m mol^-1 |
|
|
molar volume of ideal gas (273.15 K, 100 kPa) 22.710 953 e-3 0.000 021 e-3 m^3 mol^-1 |
|
|
molar volume of ideal gas (273.15 K, 101.325 kPa) 22.413 968 e-3 0.000 020 e-3 m^3 mol^-1 |
|
|
molar volume of silicon 12.058 833 01 e-6 0.000 000 80 e-6 m^3 mol^-1 |
|
|
Mo x unit 1.002 099 52 e-13 0.000 000 53 e-13 m |
|
|
muon Compton wavelength 11.734 441 03 e-15 0.000 000 30 e-15 m |
|
|
muon Compton wavelength over 2 pi 1.867 594 294 e-15 0.000 000 047 e-15 m |
|
|
muon-electron mass ratio 206.768 2843 0.000 0052 |
|
|
muon g factor -2.002 331 8418 0.000 000 0013 |
|
|
muon mag. mom. -4.490 448 07 e-26 0.000 000 15 e-26 J T^-1 |
|
|
muon mag. mom. anomaly 1.165 920 91 e-3 0.000 000 63 e-3 |
|
|
muon mag. mom. to Bohr magneton ratio -4.841 970 44 e-3 0.000 000 12 e-3 |
|
|
muon mag. mom. to nuclear magneton ratio -8.890 596 97 0.000 000 22 |
|
|
muon mass 1.883 531 475 e-28 0.000 000 096 e-28 kg |
|
|
muon mass energy equivalent 1.692 833 667 e-11 0.000 000 086 e-11 J |
|
|
muon mass energy equivalent in MeV 105.658 3715 0.000 0035 MeV |
|
|
muon mass in u 0.113 428 9267 0.000 000 0029 u |
|
|
muon molar mass 0.113 428 9267 e-3 0.000 000 0029 e-3 kg mol^-1 |
|
|
muon-neutron mass ratio 0.112 454 5177 0.000 000 0028 |
|
|
muon-proton mag. mom. ratio -3.183 345 107 0.000 000 084 |
|
|
muon-proton mass ratio 0.112 609 5272 0.000 000 0028 |
|
|
muon-tau mass ratio 5.946 49 e-2 0.000 54 e-2 |
|
|
natural unit of action 1.054 571 726 e-34 0.000 000 047 e-34 J s |
|
|
natural unit of action in eV s 6.582 119 28 e-16 0.000 000 15 e-16 eV s |
|
|
natural unit of energy 8.187 105 06 e-14 0.000 000 36 e-14 J |
|
|
natural unit of energy in MeV 0.510 998 928 0.000 000 011 MeV |
|
|
natural unit of length 386.159 268 00 e-15 0.000 000 25 e-15 m |
|
|
natural unit of mass 9.109 382 91 e-31 0.000 000 40 e-31 kg |
|
|
natural unit of mom.um 2.730 924 29 e-22 0.000 000 12 e-22 kg m s^-1 |
|
|
natural unit of mom.um in MeV/c 0.510 998 928 0.000 000 011 MeV/c |
|
|
natural unit of time 1.288 088 668 33 e-21 0.000 000 000 83 e-21 s |
|
|
natural unit of velocity 299 792 458 (exact) m s^-1 |
|
|
neutron Compton wavelength 1.319 590 9068 e-15 0.000 000 0011 e-15 m |
|
|
neutron Compton wavelength over 2 pi 0.210 019 415 68 e-15 0.000 000 000 17 e-15 m |
|
|
neutron-electron mag. mom. ratio 1.040 668 82 e-3 0.000 000 25 e-3 |
|
|
neutron-electron mass ratio 1838.683 6605 0.000 0011 |
|
|
neutron g factor -3.826 085 45 0.000 000 90 |
|
|
neutron gyromag. ratio 1.832 471 79 e8 0.000 000 43 e8 s^-1 T^-1 |
|
|
neutron gyromag. ratio over 2 pi 29.164 6943 0.000 0069 MHz T^-1 |
|
|
neutron mag. mom. -0.966 236 47 e-26 0.000 000 23 e-26 J T^-1 |
|
|
neutron mag. mom. to Bohr magneton ratio -1.041 875 63 e-3 0.000 000 25 e-3 |
|
|
neutron mag. mom. to nuclear magneton ratio -1.913 042 72 0.000 000 45 |
|
|
neutron mass 1.674 927 351 e-27 0.000 000 074 e-27 kg |
|
|
neutron mass energy equivalent 1.505 349 631 e-10 0.000 000 066 e-10 J |
|
|
neutron mass energy equivalent in MeV 939.565 379 0.000 021 MeV |
|
|
neutron mass in u 1.008 664 916 00 0.000 000 000 43 u |
|
|
neutron molar mass 1.008 664 916 00 e-3 0.000 000 000 43 e-3 kg mol^-1 |
|
|
neutron-muon mass ratio 8.892 484 00 0.000 000 22 |
|
|
neutron-proton mag. mom. ratio -0.684 979 34 0.000 000 16 |
|
|
neutron-proton mass difference 2.305 573 92 e-30 0.000 000 76 e-30 |
|
|
neutron-proton mass difference energy equivalent 2.072 146 50 e-13 0.000 000 68 e-13 |
|
|
neutron-proton mass difference energy equivalent in MeV 1.293 332 17 0.000 000 42 |
|
|
neutron-proton mass difference in u 0.001 388 449 19 0.000 000 000 45 |
|
|
neutron-proton mass ratio 1.001 378 419 17 0.000 000 000 45 |
|
|
neutron-tau mass ratio 0.528 790 0.000 048 |
|
|
neutron to shielded proton mag. mom. ratio -0.684 996 94 0.000 000 16 |
|
|
Newtonian constant of gravitation 6.673 84 e-11 0.000 80 e-11 m^3 kg^-1 s^-2 |
|
|
Newtonian constant of gravitation over h-bar c 6.708 37 e-39 0.000 80 e-39 (GeV/c^2)^-2 |
|
|
nuclear magneton 5.050 783 53 e-27 0.000 000 11 e-27 J T^-1 |
|
|
nuclear magneton in eV/T 3.152 451 2605 e-8 0.000 000 0022 e-8 eV T^-1 |
|
|
nuclear magneton in inverse meters per tesla 2.542 623 527 e-2 0.000 000 056 e-2 m^-1 T^-1 |
|
|
nuclear magneton in K/T 3.658 2682 e-4 0.000 0033 e-4 K T^-1 |
|
|
nuclear magneton in MHz/T 7.622 593 57 0.000 000 17 MHz T^-1 |
|
|
Planck constant 6.626 069 57 e-34 0.000 000 29 e-34 J s |
|
|
Planck constant in eV s 4.135 667 516 e-15 0.000 000 091 e-15 eV s |
|
|
Planck constant over 2 pi 1.054 571 726 e-34 0.000 000 047 e-34 J s |
|
|
Planck constant over 2 pi in eV s 6.582 119 28 e-16 0.000 000 15 e-16 eV s |
|
|
Planck constant over 2 pi times c in MeV fm 197.326 9718 0.000 0044 MeV fm |
|
|
Planck length 1.616 199 e-35 0.000 097 e-35 m |
|
|
Planck mass 2.176 51 e-8 0.000 13 e-8 kg |
|
|
Planck mass energy equivalent in GeV 1.220 932 e19 0.000 073 e19 GeV |
|
|
Planck temperature 1.416 833 e32 0.000 085 e32 K |
|
|
Planck time 5.391 06 e-44 0.000 32 e-44 s |
|
|
proton charge to mass quotient 9.578 833 58 e7 0.000 000 21 e7 C kg^-1 |
|
|
proton Compton wavelength 1.321 409 856 23 e-15 0.000 000 000 94 e-15 m |
|
|
proton Compton wavelength over 2 pi 0.210 308 910 47 e-15 0.000 000 000 15 e-15 m |
|
|
proton-electron mass ratio 1836.152 672 45 0.000 000 75 |
|
|
proton g factor 5.585 694 713 0.000 000 046 |
|
|
proton gyromag. ratio 2.675 222 005 e8 0.000 000 063 e8 s^-1 T^-1 |
|
|
proton gyromag. ratio over 2 pi 42.577 4806 0.000 0010 MHz T^-1 |
|
|
proton mag. mom. 1.410 606 743 e-26 0.000 000 033 e-26 J T^-1 |
|
|
proton mag. mom. to Bohr magneton ratio 1.521 032 210 e-3 0.000 000 012 e-3 |
|
|
proton mag. mom. to nuclear magneton ratio 2.792 847 356 0.000 000 023 |
|
|
proton mag. shielding correction 25.694 e-6 0.014 e-6 |
|
|
proton mass 1.672 621 777 e-27 0.000 000 074 e-27 kg |
|
|
proton mass energy equivalent 1.503 277 484 e-10 0.000 000 066 e-10 J |
|
|
proton mass energy equivalent in MeV 938.272 046 0.000 021 MeV |
|
|
proton mass in u 1.007 276 466 812 0.000 000 000 090 u |
|
|
proton molar mass 1.007 276 466 812 e-3 0.000 000 000 090 e-3 kg mol^-1 |
|
|
proton-muon mass ratio 8.880 243 31 0.000 000 22 |
|
|
proton-neutron mag. mom. ratio -1.459 898 06 0.000 000 34 |
|
|
proton-neutron mass ratio 0.998 623 478 26 0.000 000 000 45 |
|
|
proton rms charge radius 0.8775 e-15 0.0051 e-15 m |
|
|
proton-tau mass ratio 0.528 063 0.000 048 |
|
|
quantum of circulation 3.636 947 5520 e-4 0.000 000 0024 e-4 m^2 s^-1 |
|
|
quantum of circulation times 2 7.273 895 1040 e-4 0.000 000 0047 e-4 m^2 s^-1 |
|
|
Rydberg constant 10 973 731.568 539 0.000 055 m^-1 |
|
|
Rydberg constant times c in Hz 3.289 841 960 364 e15 0.000 000 000 017 e15 Hz |
|
|
Rydberg constant times hc in eV 13.605 692 53 0.000 000 30 eV |
|
|
Rydberg constant times hc in J 2.179 872 171 e-18 0.000 000 096 e-18 J |
|
|
Sackur-Tetrode constant (1 K, 100 kPa) -1.151 7078 0.000 0023 |
|
|
Sackur-Tetrode constant (1 K, 101.325 kPa) -1.164 8708 0.000 0023 |
|
|
second radiation constant 1.438 7770 e-2 0.000 0013 e-2 m K |
|
|
shielded helion gyromag. ratio 2.037 894 659 e8 0.000 000 051 e8 s^-1 T^-1 |
|
|
shielded helion gyromag. ratio over 2 pi 32.434 100 84 0.000 000 81 MHz T^-1 |
|
|
shielded helion mag. mom. -1.074 553 044 e-26 0.000 000 027 e-26 J T^-1 |
|
|
shielded helion mag. mom. to Bohr magneton ratio -1.158 671 471 e-3 0.000 000 014 e-3 |
|
|
shielded helion mag. mom. to nuclear magneton ratio -2.127 497 718 0.000 000 025 |
|
|
shielded helion to proton mag. mom. ratio -0.761 766 558 0.000 000 011 |
|
|
shielded helion to shielded proton mag. mom. ratio -0.761 786 1313 0.000 000 0033 |
|
|
shielded proton gyromag. ratio 2.675 153 268 e8 0.000 000 066 e8 s^-1 T^-1 |
|
|
shielded proton gyromag. ratio over 2 pi 42.576 3866 0.000 0010 MHz T^-1 |
|
|
shielded proton mag. mom. 1.410 570 499 e-26 0.000 000 035 e-26 J T^-1 |
|
|
shielded proton mag. mom. to Bohr magneton ratio 1.520 993 128 e-3 0.000 000 017 e-3 |
|
|
shielded proton mag. mom. to nuclear magneton ratio 2.792 775 598 0.000 000 030 |
|
|
speed of light in vacuum 299 792 458 (exact) m s^-1 |
|
|
standard acceleration of gravity 9.806 65 (exact) m s^-2 |
|
|
standard atmosphere 101 325 (exact) Pa |
|
|
standard-state pressure 100 000 (exact) Pa |
|
|
Stefan-Boltzmann constant 5.670 373 e-8 0.000 021 e-8 W m^-2 K^-4 |
|
|
tau Compton wavelength 0.697 787 e-15 0.000 063 e-15 m |
|
|
tau Compton wavelength over 2 pi 0.111 056 e-15 0.000 010 e-15 m |
|
|
tau-electron mass ratio 3477.15 0.31 |
|
|
tau mass 3.167 47 e-27 0.000 29 e-27 kg |
|
|
tau mass energy equivalent 2.846 78 e-10 0.000 26 e-10 J |
|
|
tau mass energy equivalent in MeV 1776.82 0.16 MeV |
|
|
tau mass in u 1.907 49 0.000 17 u |
|
|
tau molar mass 1.907 49 e-3 0.000 17 e-3 kg mol^-1 |
|
|
tau-muon mass ratio 16.8167 0.0015 |
|
|
tau-neutron mass ratio 1.891 11 0.000 17 |
|
|
tau-proton mass ratio 1.893 72 0.000 17 |
|
|
Thomson cross section 0.665 245 8734 e-28 0.000 000 0013 e-28 m^2 |
|
|
triton-electron mass ratio 5496.921 5267 0.000 0050 |
|
|
triton g factor 5.957 924 896 0.000 000 076 |
|
|
triton mag. mom. 1.504 609 447 e-26 0.000 000 038 e-26 J T^-1 |
|
|
triton mag. mom. to Bohr magneton ratio 1.622 393 657 e-3 0.000 000 021 e-3 |
|
|
triton mag. mom. to nuclear magneton ratio 2.978 962 448 0.000 000 038 |
|
|
triton mass 5.007 356 30 e-27 0.000 000 22 e-27 kg |
|
|
triton mass energy equivalent 4.500 387 41 e-10 0.000 000 20 e-10 J |
|
|
triton mass energy equivalent in MeV 2808.921 005 0.000 062 MeV |
|
|
triton mass in u 3.015 500 7134 0.000 000 0025 u |
|
|
triton molar mass 3.015 500 7134 e-3 0.000 000 0025 e-3 kg mol^-1 |
|
|
triton-proton mass ratio 2.993 717 0308 0.000 000 0025 |
|
|
unified atomic mass unit 1.660 538 921 e-27 0.000 000 073 e-27 kg |
|
|
von Klitzing constant 25 812.807 4434 0.000 0084 ohm |
|
|
weak mixing angle 0.2223 0.0021 |
|
|
Wien frequency displacement law constant 5.878 9254 e10 0.000 0053 e10 Hz K^-1 |
|
|
Wien wavelength displacement law constant 2.897 7721 e-3 0.000 0026 e-3 m K""" |
|
|
|
|
|
|
|
|
exact2010 = exact2006 |
|
|
|
|
|
|
|
|
txt2014 = """\ |
|
|
{220} lattice spacing of silicon 192.015 5714 e-12 0.000 0032 e-12 m |
|
|
alpha particle-electron mass ratio 7294.299 541 36 0.000 000 24 |
|
|
alpha particle mass 6.644 657 230 e-27 0.000 000 082 e-27 kg |
|
|
alpha particle mass energy equivalent 5.971 920 097 e-10 0.000 000 073 e-10 J |
|
|
alpha particle mass energy equivalent in MeV 3727.379 378 0.000 023 MeV |
|
|
alpha particle mass in u 4.001 506 179 127 0.000 000 000 063 u |
|
|
alpha particle molar mass 4.001 506 179 127 e-3 0.000 000 000 063 e-3 kg mol^-1 |
|
|
alpha particle-proton mass ratio 3.972 599 689 07 0.000 000 000 36 |
|
|
Angstrom star 1.000 014 95 e-10 0.000 000 90 e-10 m |
|
|
atomic mass constant 1.660 539 040 e-27 0.000 000 020 e-27 kg |
|
|
atomic mass constant energy equivalent 1.492 418 062 e-10 0.000 000 018 e-10 J |
|
|
atomic mass constant energy equivalent in MeV 931.494 0954 0.000 0057 MeV |
|
|
atomic mass unit-electron volt relationship 931.494 0954 e6 0.000 0057 e6 eV |
|
|
atomic mass unit-hartree relationship 3.423 177 6902 e7 0.000 000 0016 e7 E_h |
|
|
atomic mass unit-hertz relationship 2.252 342 7206 e23 0.000 000 0010 e23 Hz |
|
|
atomic mass unit-inverse meter relationship 7.513 006 6166 e14 0.000 000 0034 e14 m^-1 |
|
|
atomic mass unit-joule relationship 1.492 418 062 e-10 0.000 000 018 e-10 J |
|
|
atomic mass unit-kelvin relationship 1.080 954 38 e13 0.000 000 62 e13 K |
|
|
atomic mass unit-kilogram relationship 1.660 539 040 e-27 0.000 000 020 e-27 kg |
|
|
atomic unit of 1st hyperpolarizability 3.206 361 329 e-53 0.000 000 020 e-53 C^3 m^3 J^-2 |
|
|
atomic unit of 2nd hyperpolarizability 6.235 380 085 e-65 0.000 000 077 e-65 C^4 m^4 J^-3 |
|
|
atomic unit of action 1.054 571 800 e-34 0.000 000 013 e-34 J s |
|
|
atomic unit of charge 1.602 176 6208 e-19 0.000 000 0098 e-19 C |
|
|
atomic unit of charge density 1.081 202 3770 e12 0.000 000 0067 e12 C m^-3 |
|
|
atomic unit of current 6.623 618 183 e-3 0.000 000 041 e-3 A |
|
|
atomic unit of electric dipole mom. 8.478 353 552 e-30 0.000 000 052 e-30 C m |
|
|
atomic unit of electric field 5.142 206 707 e11 0.000 000 032 e11 V m^-1 |
|
|
atomic unit of electric field gradient 9.717 362 356 e21 0.000 000 060 e21 V m^-2 |
|
|
atomic unit of electric polarizability 1.648 777 2731 e-41 0.000 000 0011 e-41 C^2 m^2 J^-1 |
|
|
atomic unit of electric potential 27.211 386 02 0.000 000 17 V |
|
|
atomic unit of electric quadrupole mom. 4.486 551 484 e-40 0.000 000 028 e-40 C m^2 |
|
|
atomic unit of energy 4.359 744 650 e-18 0.000 000 054 e-18 J |
|
|
atomic unit of force 8.238 723 36 e-8 0.000 000 10 e-8 N |
|
|
atomic unit of length 0.529 177 210 67 e-10 0.000 000 000 12 e-10 m |
|
|
atomic unit of mag. dipole mom. 1.854 801 999 e-23 0.000 000 011 e-23 J T^-1 |
|
|
atomic unit of mag. flux density 2.350 517 550 e5 0.000 000 014 e5 T |
|
|
atomic unit of magnetizability 7.891 036 5886 e-29 0.000 000 0090 e-29 J T^-2 |
|
|
atomic unit of mass 9.109 383 56 e-31 0.000 000 11 e-31 kg |
|
|
atomic unit of mom.um 1.992 851 882 e-24 0.000 000 024 e-24 kg m s^-1 |
|
|
atomic unit of permittivity 1.112 650 056... e-10 (exact) F m^-1 |
|
|
atomic unit of time 2.418 884 326509e-17 0.000 000 000014e-17 s |
|
|
atomic unit of velocity 2.187 691 262 77 e6 0.000 000 000 50 e6 m s^-1 |
|
|
Avogadro constant 6.022 140 857 e23 0.000 000 074 e23 mol^-1 |
|
|
Bohr magneton 927.400 9994 e-26 0.000 0057 e-26 J T^-1 |
|
|
Bohr magneton in eV/T 5.788 381 8012 e-5 0.000 000 0026 e-5 eV T^-1 |
|
|
Bohr magneton in Hz/T 13.996 245 042 e9 0.000 000 086 e9 Hz T^-1 |
|
|
Bohr magneton in inverse meters per tesla 46.686 448 14 0.000 000 29 m^-1 T^-1 |
|
|
Bohr magneton in K/T 0.671 714 05 0.000 000 39 K T^-1 |
|
|
Bohr radius 0.529 177 210 67 e-10 0.000 000 000 12 e-10 m |
|
|
Boltzmann constant 1.380 648 52 e-23 0.000 000 79 e-23 J K^-1 |
|
|
Boltzmann constant in eV/K 8.617 3303 e-5 0.000 0050 e-5 eV K^-1 |
|
|
Boltzmann constant in Hz/K 2.083 6612 e10 0.000 0012 e10 Hz K^-1 |
|
|
Boltzmann constant in inverse meters per kelvin 69.503 457 0.000 040 m^-1 K^-1 |
|
|
characteristic impedance of vacuum 376.730 313 461... (exact) ohm |
|
|
classical electron radius 2.817 940 3227 e-15 0.000 000 0019 e-15 m |
|
|
Compton wavelength 2.426 310 2367 e-12 0.000 000 0011 e-12 m |
|
|
Compton wavelength over 2 pi 386.159 267 64 e-15 0.000 000 18 e-15 m |
|
|
conductance quantum 7.748 091 7310 e-5 0.000 000 0018 e-5 S |
|
|
conventional value of Josephson constant 483 597.9 e9 (exact) Hz V^-1 |
|
|
conventional value of von Klitzing constant 25 812.807 (exact) ohm |
|
|
Cu x unit 1.002 076 97 e-13 0.000 000 28 e-13 m |
|
|
deuteron-electron mag. mom. ratio -4.664 345 535 e-4 0.000 000 026 e-4 |
|
|
deuteron-electron mass ratio 3670.482 967 85 0.000 000 13 |
|
|
deuteron g factor 0.857 438 2311 0.000 000 0048 |
|
|
deuteron mag. mom. 0.433 073 5040 e-26 0.000 000 0036 e-26 J T^-1 |
|
|
deuteron mag. mom. to Bohr magneton ratio 0.466 975 4554 e-3 0.000 000 0026 e-3 |
|
|
deuteron mag. mom. to nuclear magneton ratio 0.857 438 2311 0.000 000 0048 |
|
|
deuteron mass 3.343 583 719 e-27 0.000 000 041 e-27 kg |
|
|
deuteron mass energy equivalent 3.005 063 183 e-10 0.000 000 037 e-10 J |
|
|
deuteron mass energy equivalent in MeV 1875.612 928 0.000 012 MeV |
|
|
deuteron mass in u 2.013 553 212 745 0.000 000 000 040 u |
|
|
deuteron molar mass 2.013 553 212 745 e-3 0.000 000 000 040 e-3 kg mol^-1 |
|
|
deuteron-neutron mag. mom. ratio -0.448 206 52 0.000 000 11 |
|
|
deuteron-proton mag. mom. ratio 0.307 012 2077 0.000 000 0015 |
|
|
deuteron-proton mass ratio 1.999 007 500 87 0.000 000 000 19 |
|
|
deuteron rms charge radius 2.1413 e-15 0.0025 e-15 m |
|
|
electric constant 8.854 187 817... e-12 (exact) F m^-1 |
|
|
electron charge to mass quotient -1.758 820 024 e11 0.000 000 011 e11 C kg^-1 |
|
|
electron-deuteron mag. mom. ratio -2143.923 499 0.000 012 |
|
|
electron-deuteron mass ratio 2.724 437 107 484 e-4 0.000 000 000 096 e-4 |
|
|
electron g factor -2.002 319 304 361 82 0.000 000 000 000 52 |
|
|
electron gyromag. ratio 1.760 859 644 e11 0.000 000 011 e11 s^-1 T^-1 |
|
|
electron gyromag. ratio over 2 pi 28 024.951 64 0.000 17 MHz T^-1 |
|
|
electron-helion mass ratio 1.819 543 074 854 e-4 0.000 000 000 088 e-4 |
|
|
electron mag. mom. -928.476 4620 e-26 0.000 0057 e-26 J T^-1 |
|
|
electron mag. mom. anomaly 1.159 652 180 91 e-3 0.000 000 000 26 e-3 |
|
|
electron mag. mom. to Bohr magneton ratio -1.001 159 652 180 91 0.000 000 000 000 26 |
|
|
electron mag. mom. to nuclear magneton ratio -1838.281 972 34 0.000 000 17 |
|
|
electron mass 9.109 383 56 e-31 0.000 000 11 e-31 kg |
|
|
electron mass energy equivalent 8.187 105 65 e-14 0.000 000 10 e-14 J |
|
|
electron mass energy equivalent in MeV 0.510 998 9461 0.000 000 0031 MeV |
|
|
electron mass in u 5.485 799 090 70 e-4 0.000 000 000 16 e-4 u |
|
|
electron molar mass 5.485 799 090 70 e-7 0.000 000 000 16 e-7 kg mol^-1 |
|
|
electron-muon mag. mom. ratio 206.766 9880 0.000 0046 |
|
|
electron-muon mass ratio 4.836 331 70 e-3 0.000 000 11 e-3 |
|
|
electron-neutron mag. mom. ratio 960.920 50 0.000 23 |
|
|
electron-neutron mass ratio 5.438 673 4428 e-4 0.000 000 0027 e-4 |
|
|
electron-proton mag. mom. ratio -658.210 6866 0.000 0020 |
|
|
electron-proton mass ratio 5.446 170 213 52 e-4 0.000 000 000 52 e-4 |
|
|
electron-tau mass ratio 2.875 92 e-4 0.000 26 e-4 |
|
|
electron to alpha particle mass ratio 1.370 933 554 798 e-4 0.000 000 000 045 e-4 |
|
|
electron to shielded helion mag. mom. ratio 864.058 257 0.000 010 |
|
|
electron to shielded proton mag. mom. ratio -658.227 5971 0.000 0072 |
|
|
electron-triton mass ratio 1.819 200 062 203 e-4 0.000 000 000 084 e-4 |
|
|
electron volt 1.602 176 6208 e-19 0.000 000 0098 e-19 J |
|
|
electron volt-atomic mass unit relationship 1.073 544 1105 e-9 0.000 000 0066 e-9 u |
|
|
electron volt-hartree relationship 3.674 932 248 e-2 0.000 000 023 e-2 E_h |
|
|
electron volt-hertz relationship 2.417 989 262 e14 0.000 000 015 e14 Hz |
|
|
electron volt-inverse meter relationship 8.065 544 005 e5 0.000 000 050 e5 m^-1 |
|
|
electron volt-joule relationship 1.602 176 6208 e-19 0.000 000 0098 e-19 J |
|
|
electron volt-kelvin relationship 1.160 452 21 e4 0.000 000 67 e4 K |
|
|
electron volt-kilogram relationship 1.782 661 907 e-36 0.000 000 011 e-36 kg |
|
|
elementary charge 1.602 176 6208 e-19 0.000 000 0098 e-19 C |
|
|
elementary charge over h 2.417 989 262 e14 0.000 000 015 e14 A J^-1 |
|
|
Faraday constant 96 485.332 89 0.000 59 C mol^-1 |
|
|
Faraday constant for conventional electric current 96 485.3251 0.0012 C_90 mol^-1 |
|
|
Fermi coupling constant 1.166 3787 e-5 0.000 0006 e-5 GeV^-2 |
|
|
fine-structure constant 7.297 352 5664 e-3 0.000 000 0017 e-3 |
|
|
first radiation constant 3.741 771 790 e-16 0.000 000 046 e-16 W m^2 |
|
|
first radiation constant for spectral radiance 1.191 042 953 e-16 0.000 000 015 e-16 W m^2 sr^-1 |
|
|
hartree-atomic mass unit relationship 2.921 262 3197 e-8 0.000 000 0013 e-8 u |
|
|
hartree-electron volt relationship 27.211 386 02 0.000 000 17 eV |
|
|
Hartree energy 4.359 744 650 e-18 0.000 000 054 e-18 J |
|
|
Hartree energy in eV 27.211 386 02 0.000 000 17 eV |
|
|
hartree-hertz relationship 6.579 683 920 711 e15 0.000 000 000 039 e15 Hz |
|
|
hartree-inverse meter relationship 2.194 746 313 702 e7 0.000 000 000 013 e7 m^-1 |
|
|
hartree-joule relationship 4.359 744 650 e-18 0.000 000 054 e-18 J |
|
|
hartree-kelvin relationship 3.157 7513 e5 0.000 0018 e5 K |
|
|
hartree-kilogram relationship 4.850 870 129 e-35 0.000 000 060 e-35 kg |
|
|
helion-electron mass ratio 5495.885 279 22 0.000 000 27 |
|
|
helion g factor -4.255 250 616 0.000 000 050 |
|
|
helion mag. mom. -1.074 617 522 e-26 0.000 000 014 e-26 J T^-1 |
|
|
helion mag. mom. to Bohr magneton ratio -1.158 740 958 e-3 0.000 000 014 e-3 |
|
|
helion mag. mom. to nuclear magneton ratio -2.127 625 308 0.000 000 025 |
|
|
helion mass 5.006 412 700 e-27 0.000 000 062 e-27 kg |
|
|
helion mass energy equivalent 4.499 539 341 e-10 0.000 000 055 e-10 J |
|
|
helion mass energy equivalent in MeV 2808.391 586 0.000 017 MeV |
|
|
helion mass in u 3.014 932 246 73 0.000 000 000 12 u |
|
|
helion molar mass 3.014 932 246 73 e-3 0.000 000 000 12 e-3 kg mol^-1 |
|
|
helion-proton mass ratio 2.993 152 670 46 0.000 000 000 29 |
|
|
hertz-atomic mass unit relationship 4.439 821 6616 e-24 0.000 000 0020 e-24 u |
|
|
hertz-electron volt relationship 4.135 667 662 e-15 0.000 000 025 e-15 eV |
|
|
hertz-hartree relationship 1.5198298460088 e-16 0.0000000000090e-16 E_h |
|
|
hertz-inverse meter relationship 3.335 640 951... e-9 (exact) m^-1 |
|
|
hertz-joule relationship 6.626 070 040 e-34 0.000 000 081 e-34 J |
|
|
hertz-kelvin relationship 4.799 2447 e-11 0.000 0028 e-11 K |
|
|
hertz-kilogram relationship 7.372 497 201 e-51 0.000 000 091 e-51 kg |
|
|
inverse fine-structure constant 137.035 999 139 0.000 000 031 |
|
|
inverse meter-atomic mass unit relationship 1.331 025 049 00 e-15 0.000 000 000 61 e-15 u |
|
|
inverse meter-electron volt relationship 1.239 841 9739 e-6 0.000 000 0076 e-6 eV |
|
|
inverse meter-hartree relationship 4.556 335 252 767 e-8 0.000 000 000 027 e-8 E_h |
|
|
inverse meter-hertz relationship 299 792 458 (exact) Hz |
|
|
inverse meter-joule relationship 1.986 445 824 e-25 0.000 000 024 e-25 J |
|
|
inverse meter-kelvin relationship 1.438 777 36 e-2 0.000 000 83 e-2 K |
|
|
inverse meter-kilogram relationship 2.210 219 057 e-42 0.000 000 027 e-42 kg |
|
|
inverse of conductance quantum 12 906.403 7278 0.000 0029 ohm |
|
|
Josephson constant 483 597.8525 e9 0.0030 e9 Hz V^-1 |
|
|
joule-atomic mass unit relationship 6.700 535 363 e9 0.000 000 082 e9 u |
|
|
joule-electron volt relationship 6.241 509 126 e18 0.000 000 038 e18 eV |
|
|
joule-hartree relationship 2.293 712 317 e17 0.000 000 028 e17 E_h |
|
|
joule-hertz relationship 1.509 190 205 e33 0.000 000 019 e33 Hz |
|
|
joule-inverse meter relationship 5.034 116 651 e24 0.000 000 062 e24 m^-1 |
|
|
joule-kelvin relationship 7.242 9731 e22 0.000 0042 e22 K |
|
|
joule-kilogram relationship 1.112 650 056... e-17 (exact) kg |
|
|
kelvin-atomic mass unit relationship 9.251 0842 e-14 0.000 0053 e-14 u |
|
|
kelvin-electron volt relationship 8.617 3303 e-5 0.000 0050 e-5 eV |
|
|
kelvin-hartree relationship 3.166 8105 e-6 0.000 0018 e-6 E_h |
|
|
kelvin-hertz relationship 2.083 6612 e10 0.000 0012 e10 Hz |
|
|
kelvin-inverse meter relationship 69.503 457 0.000 040 m^-1 |
|
|
kelvin-joule relationship 1.380 648 52 e-23 0.000 000 79 e-23 J |
|
|
kelvin-kilogram relationship 1.536 178 65 e-40 0.000 000 88 e-40 kg |
|
|
kilogram-atomic mass unit relationship 6.022 140 857 e26 0.000 000 074 e26 u |
|
|
kilogram-electron volt relationship 5.609 588 650 e35 0.000 000 034 e35 eV |
|
|
kilogram-hartree relationship 2.061 485 823 e34 0.000 000 025 e34 E_h |
|
|
kilogram-hertz relationship 1.356 392 512 e50 0.000 000 017 e50 Hz |
|
|
kilogram-inverse meter relationship 4.524 438 411 e41 0.000 000 056 e41 m^-1 |
|
|
kilogram-joule relationship 8.987 551 787... e16 (exact) J |
|
|
kilogram-kelvin relationship 6.509 6595 e39 0.000 0037 e39 K |
|
|
lattice parameter of silicon 543.102 0504 e-12 0.000 0089 e-12 m |
|
|
Loschmidt constant (273.15 K, 100 kPa) 2.651 6467 e25 0.000 0015 e25 m^-3 |
|
|
Loschmidt constant (273.15 K, 101.325 kPa) 2.686 7811 e25 0.000 0015 e25 m^-3 |
|
|
mag. constant 12.566 370 614... e-7 (exact) N A^-2 |
|
|
mag. flux quantum 2.067 833 831 e-15 0.000 000 013 e-15 Wb |
|
|
molar gas constant 8.314 4598 0.000 0048 J mol^-1 K^-1 |
|
|
molar mass constant 1 e-3 (exact) kg mol^-1 |
|
|
molar mass of carbon-12 12 e-3 (exact) kg mol^-1 |
|
|
molar Planck constant 3.990 312 7110 e-10 0.000 000 0018 e-10 J s mol^-1 |
|
|
molar Planck constant times c 0.119 626 565 582 0.000 000 000 054 J m mol^-1 |
|
|
molar volume of ideal gas (273.15 K, 100 kPa) 22.710 947 e-3 0.000 013 e-3 m^3 mol^-1 |
|
|
molar volume of ideal gas (273.15 K, 101.325 kPa) 22.413 962 e-3 0.000 013 e-3 m^3 mol^-1 |
|
|
molar volume of silicon 12.058 832 14 e-6 0.000 000 61 e-6 m^3 mol^-1 |
|
|
Mo x unit 1.002 099 52 e-13 0.000 000 53 e-13 m |
|
|
muon Compton wavelength 11.734 441 11 e-15 0.000 000 26 e-15 m |
|
|
muon Compton wavelength over 2 pi 1.867 594 308 e-15 0.000 000 042 e-15 m |
|
|
muon-electron mass ratio 206.768 2826 0.000 0046 |
|
|
muon g factor -2.002 331 8418 0.000 000 0013 |
|
|
muon mag. mom. -4.490 448 26 e-26 0.000 000 10 e-26 J T^-1 |
|
|
muon mag. mom. anomaly 1.165 920 89 e-3 0.000 000 63 e-3 |
|
|
muon mag. mom. to Bohr magneton ratio -4.841 970 48 e-3 0.000 000 11 e-3 |
|
|
muon mag. mom. to nuclear magneton ratio -8.890 597 05 0.000 000 20 |
|
|
muon mass 1.883 531 594 e-28 0.000 000 048 e-28 kg |
|
|
muon mass energy equivalent 1.692 833 774 e-11 0.000 000 043 e-11 J |
|
|
muon mass energy equivalent in MeV 105.658 3745 0.000 0024 MeV |
|
|
muon mass in u 0.113 428 9257 0.000 000 0025 u |
|
|
muon molar mass 0.113 428 9257 e-3 0.000 000 0025 e-3 kg mol^-1 |
|
|
muon-neutron mass ratio 0.112 454 5167 0.000 000 0025 |
|
|
muon-proton mag. mom. ratio -3.183 345 142 0.000 000 071 |
|
|
muon-proton mass ratio 0.112 609 5262 0.000 000 0025 |
|
|
muon-tau mass ratio 5.946 49 e-2 0.000 54 e-2 |
|
|
natural unit of action 1.054 571 800 e-34 0.000 000 013 e-34 J s |
|
|
natural unit of action in eV s 6.582 119 514 e-16 0.000 000 040 e-16 eV s |
|
|
natural unit of energy 8.187 105 65 e-14 0.000 000 10 e-14 J |
|
|
natural unit of energy in MeV 0.510 998 9461 0.000 000 0031 MeV |
|
|
natural unit of length 386.159 267 64 e-15 0.000 000 18 e-15 m |
|
|
natural unit of mass 9.109 383 56 e-31 0.000 000 11 e-31 kg |
|
|
natural unit of mom.um 2.730 924 488 e-22 0.000 000 034 e-22 kg m s^-1 |
|
|
natural unit of mom.um in MeV/c 0.510 998 9461 0.000 000 0031 MeV/c |
|
|
natural unit of time 1.288 088 667 12 e-21 0.000 000 000 58 e-21 s |
|
|
natural unit of velocity 299 792 458 (exact) m s^-1 |
|
|
neutron Compton wavelength 1.319 590 904 81 e-15 0.000 000 000 88 e-15 m |
|
|
neutron Compton wavelength over 2 pi 0.210 019 415 36 e-15 0.000 000 000 14 e-15 m |
|
|
neutron-electron mag. mom. ratio 1.040 668 82 e-3 0.000 000 25 e-3 |
|
|
neutron-electron mass ratio 1838.683 661 58 0.000 000 90 |
|
|
neutron g factor -3.826 085 45 0.000 000 90 |
|
|
neutron gyromag. ratio 1.832 471 72 e8 0.000 000 43 e8 s^-1 T^-1 |
|
|
neutron gyromag. ratio over 2 pi 29.164 6933 0.000 0069 MHz T^-1 |
|
|
neutron mag. mom. -0.966 236 50 e-26 0.000 000 23 e-26 J T^-1 |
|
|
neutron mag. mom. to Bohr magneton ratio -1.041 875 63 e-3 0.000 000 25 e-3 |
|
|
neutron mag. mom. to nuclear magneton ratio -1.913 042 73 0.000 000 45 |
|
|
neutron mass 1.674 927 471 e-27 0.000 000 021 e-27 kg |
|
|
neutron mass energy equivalent 1.505 349 739 e-10 0.000 000 019 e-10 J |
|
|
neutron mass energy equivalent in MeV 939.565 4133 0.000 0058 MeV |
|
|
neutron mass in u 1.008 664 915 88 0.000 000 000 49 u |
|
|
neutron molar mass 1.008 664 915 88 e-3 0.000 000 000 49 e-3 kg mol^-1 |
|
|
neutron-muon mass ratio 8.892 484 08 0.000 000 20 |
|
|
neutron-proton mag. mom. ratio -0.684 979 34 0.000 000 16 |
|
|
neutron-proton mass difference 2.305 573 77 e-30 0.000 000 85 e-30 |
|
|
neutron-proton mass difference energy equivalent 2.072 146 37 e-13 0.000 000 76 e-13 |
|
|
neutron-proton mass difference energy equivalent in MeV 1.293 332 05 0.000 000 48 |
|
|
neutron-proton mass difference in u 0.001 388 449 00 0.000 000 000 51 |
|
|
neutron-proton mass ratio 1.001 378 418 98 0.000 000 000 51 |
|
|
neutron-tau mass ratio 0.528 790 0.000 048 |
|
|
neutron to shielded proton mag. mom. ratio -0.684 996 94 0.000 000 16 |
|
|
Newtonian constant of gravitation 6.674 08 e-11 0.000 31 e-11 m^3 kg^-1 s^-2 |
|
|
Newtonian constant of gravitation over h-bar c 6.708 61 e-39 0.000 31 e-39 (GeV/c^2)^-2 |
|
|
nuclear magneton 5.050 783 699 e-27 0.000 000 031 e-27 J T^-1 |
|
|
nuclear magneton in eV/T 3.152 451 2550 e-8 0.000 000 0015 e-8 eV T^-1 |
|
|
nuclear magneton in inverse meters per tesla 2.542 623 432 e-2 0.000 000 016 e-2 m^-1 T^-1 |
|
|
nuclear magneton in K/T 3.658 2690 e-4 0.000 0021 e-4 K T^-1 |
|
|
nuclear magneton in MHz/T 7.622 593 285 0.000 000 047 MHz T^-1 |
|
|
Planck constant 6.626 070 040 e-34 0.000 000 081 e-34 J s |
|
|
Planck constant in eV s 4.135 667 662 e-15 0.000 000 025 e-15 eV s |
|
|
Planck constant over 2 pi 1.054 571 800 e-34 0.000 000 013 e-34 J s |
|
|
Planck constant over 2 pi in eV s 6.582 119 514 e-16 0.000 000 040 e-16 eV s |
|
|
Planck constant over 2 pi times c in MeV fm 197.326 9788 0.000 0012 MeV fm |
|
|
Planck length 1.616 229 e-35 0.000 038 e-35 m |
|
|
Planck mass 2.176 470 e-8 0.000 051 e-8 kg |
|
|
Planck mass energy equivalent in GeV 1.220 910 e19 0.000 029 e19 GeV |
|
|
Planck temperature 1.416 808 e32 0.000 033 e32 K |
|
|
Planck time 5.391 16 e-44 0.000 13 e-44 s |
|
|
proton charge to mass quotient 9.578 833 226 e7 0.000 000 059 e7 C kg^-1 |
|
|
proton Compton wavelength 1.321 409 853 96 e-15 0.000 000 000 61 e-15 m |
|
|
proton Compton wavelength over 2 pi 0.210 308910109e-15 0.000 000 000097e-15 m |
|
|
proton-electron mass ratio 1836.152 673 89 0.000 000 17 |
|
|
proton g factor 5.585 694 702 0.000 000 017 |
|
|
proton gyromag. ratio 2.675 221 900 e8 0.000 000 018 e8 s^-1 T^-1 |
|
|
proton gyromag. ratio over 2 pi 42.577 478 92 0.000 000 29 MHz T^-1 |
|
|
proton mag. mom. 1.410 606 7873 e-26 0.000 000 0097 e-26 J T^-1 |
|
|
proton mag. mom. to Bohr magneton ratio 1.521 032 2053 e-3 0.000 000 0046 e-3 |
|
|
proton mag. mom. to nuclear magneton ratio 2.792 847 3508 0.000 000 0085 |
|
|
proton mag. shielding correction 25.691 e-6 0.011 e-6 |
|
|
proton mass 1.672 621 898 e-27 0.000 000 021 e-27 kg |
|
|
proton mass energy equivalent 1.503 277 593 e-10 0.000 000 018 e-10 J |
|
|
proton mass energy equivalent in MeV 938.272 0813 0.000 0058 MeV |
|
|
proton mass in u 1.007 276 466 879 0.000 000 000 091 u |
|
|
proton molar mass 1.007 276 466 879 e-3 0.000 000 000 091 e-3 kg mol^-1 |
|
|
proton-muon mass ratio 8.880 243 38 0.000 000 20 |
|
|
proton-neutron mag. mom. ratio -1.459 898 05 0.000 000 34 |
|
|
proton-neutron mass ratio 0.998 623 478 44 0.000 000 000 51 |
|
|
proton rms charge radius 0.8751 e-15 0.0061 e-15 m |
|
|
proton-tau mass ratio 0.528 063 0.000 048 |
|
|
quantum of circulation 3.636 947 5486 e-4 0.000 000 0017 e-4 m^2 s^-1 |
|
|
quantum of circulation times 2 7.273 895 0972 e-4 0.000 000 0033 e-4 m^2 s^-1 |
|
|
Rydberg constant 10 973 731.568 508 0.000 065 m^-1 |
|
|
Rydberg constant times c in Hz 3.289 841 960 355 e15 0.000 000 000 019 e15 Hz |
|
|
Rydberg constant times hc in eV 13.605 693 009 0.000 000 084 eV |
|
|
Rydberg constant times hc in J 2.179 872 325 e-18 0.000 000 027 e-18 J |
|
|
Sackur-Tetrode constant (1 K, 100 kPa) -1.151 7084 0.000 0014 |
|
|
Sackur-Tetrode constant (1 K, 101.325 kPa) -1.164 8714 0.000 0014 |
|
|
second radiation constant 1.438 777 36 e-2 0.000 000 83 e-2 m K |
|
|
shielded helion gyromag. ratio 2.037 894 585 e8 0.000 000 027 e8 s^-1 T^-1 |
|
|
shielded helion gyromag. ratio over 2 pi 32.434 099 66 0.000 000 43 MHz T^-1 |
|
|
shielded helion mag. mom. -1.074 553 080 e-26 0.000 000 014 e-26 J T^-1 |
|
|
shielded helion mag. mom. to Bohr magneton ratio -1.158 671 471 e-3 0.000 000 014 e-3 |
|
|
shielded helion mag. mom. to nuclear magneton ratio -2.127 497 720 0.000 000 025 |
|
|
shielded helion to proton mag. mom. ratio -0.761 766 5603 0.000 000 0092 |
|
|
shielded helion to shielded proton mag. mom. ratio -0.761 786 1313 0.000 000 0033 |
|
|
shielded proton gyromag. ratio 2.675 153 171 e8 0.000 000 033 e8 s^-1 T^-1 |
|
|
shielded proton gyromag. ratio over 2 pi 42.576 385 07 0.000 000 53 MHz T^-1 |
|
|
shielded proton mag. mom. 1.410 570 547 e-26 0.000 000 018 e-26 J T^-1 |
|
|
shielded proton mag. mom. to Bohr magneton ratio 1.520 993 128 e-3 0.000 000 017 e-3 |
|
|
shielded proton mag. mom. to nuclear magneton ratio 2.792 775 600 0.000 000 030 |
|
|
speed of light in vacuum 299 792 458 (exact) m s^-1 |
|
|
standard acceleration of gravity 9.806 65 (exact) m s^-2 |
|
|
standard atmosphere 101 325 (exact) Pa |
|
|
standard-state pressure 100 000 (exact) Pa |
|
|
Stefan-Boltzmann constant 5.670 367 e-8 0.000 013 e-8 W m^-2 K^-4 |
|
|
tau Compton wavelength 0.697 787 e-15 0.000 063 e-15 m |
|
|
tau Compton wavelength over 2 pi 0.111 056 e-15 0.000 010 e-15 m |
|
|
tau-electron mass ratio 3477.15 0.31 |
|
|
tau mass 3.167 47 e-27 0.000 29 e-27 kg |
|
|
tau mass energy equivalent 2.846 78 e-10 0.000 26 e-10 J |
|
|
tau mass energy equivalent in MeV 1776.82 0.16 MeV |
|
|
tau mass in u 1.907 49 0.000 17 u |
|
|
tau molar mass 1.907 49 e-3 0.000 17 e-3 kg mol^-1 |
|
|
tau-muon mass ratio 16.8167 0.0015 |
|
|
tau-neutron mass ratio 1.891 11 0.000 17 |
|
|
tau-proton mass ratio 1.893 72 0.000 17 |
|
|
Thomson cross section 0.665 245 871 58 e-28 0.000 000 000 91 e-28 m^2 |
|
|
triton-electron mass ratio 5496.921 535 88 0.000 000 26 |
|
|
triton g factor 5.957 924 920 0.000 000 028 |
|
|
triton mag. mom. 1.504 609 503 e-26 0.000 000 012 e-26 J T^-1 |
|
|
triton mag. mom. to Bohr magneton ratio 1.622 393 6616 e-3 0.000 000 0076 e-3 |
|
|
triton mag. mom. to nuclear magneton ratio 2.978 962 460 0.000 000 014 |
|
|
triton mass 5.007 356 665 e-27 0.000 000 062 e-27 kg |
|
|
triton mass energy equivalent 4.500 387 735 e-10 0.000 000 055 e-10 J |
|
|
triton mass energy equivalent in MeV 2808.921 112 0.000 017 MeV |
|
|
triton mass in u 3.015 500 716 32 0.000 000 000 11 u |
|
|
triton molar mass 3.015 500 716 32 e-3 0.000 000 000 11 e-3 kg mol^-1 |
|
|
triton-proton mass ratio 2.993 717 033 48 0.000 000 000 22 |
|
|
unified atomic mass unit 1.660 539 040 e-27 0.000 000 020 e-27 kg |
|
|
von Klitzing constant 25 812.807 4555 0.000 0059 ohm |
|
|
weak mixing angle 0.2223 0.0021 |
|
|
Wien frequency displacement law constant 5.878 9238 e10 0.000 0034 e10 Hz K^-1 |
|
|
Wien wavelength displacement law constant 2.897 7729 e-3 0.000 0017 e-3 m K""" |
|
|
|
|
|
|
|
|
exact2014 = exact2010 |
|
|
|
|
|
|
|
|
txt2018 = """\ |
|
|
alpha particle-electron mass ratio 7294.299 541 42 0.000 000 24 |
|
|
alpha particle mass 6.644 657 3357 e-27 0.000 000 0020 e-27 kg |
|
|
alpha particle mass energy equivalent 5.971 920 1914 e-10 0.000 000 0018 e-10 J |
|
|
alpha particle mass energy equivalent in MeV 3727.379 4066 0.000 0011 MeV |
|
|
alpha particle mass in u 4.001 506 179 127 0.000 000 000 063 u |
|
|
alpha particle molar mass 4.001 506 1777 e-3 0.000 000 0012 e-3 kg mol^-1 |
|
|
alpha particle-proton mass ratio 3.972 599 690 09 0.000 000 000 22 |
|
|
alpha particle relative atomic mass 4.001 506 179 127 0.000 000 000 063 |
|
|
Angstrom star 1.000 014 95 e-10 0.000 000 90 e-10 m |
|
|
atomic mass constant 1.660 539 066 60 e-27 0.000 000 000 50 e-27 kg |
|
|
atomic mass constant energy equivalent 1.492 418 085 60 e-10 0.000 000 000 45 e-10 J |
|
|
atomic mass constant energy equivalent in MeV 931.494 102 42 0.000 000 28 MeV |
|
|
atomic mass unit-electron volt relationship 9.314 941 0242 e8 0.000 000 0028 e8 eV |
|
|
atomic mass unit-hartree relationship 3.423 177 6874 e7 0.000 000 0010 e7 E_h |
|
|
atomic mass unit-hertz relationship 2.252 342 718 71 e23 0.000 000 000 68 e23 Hz |
|
|
atomic mass unit-inverse meter relationship 7.513 006 6104 e14 0.000 000 0023 e14 m^-1 |
|
|
atomic mass unit-joule relationship 1.492 418 085 60 e-10 0.000 000 000 45 e-10 J |
|
|
atomic mass unit-kelvin relationship 1.080 954 019 16 e13 0.000 000 000 33 e13 K |
|
|
atomic mass unit-kilogram relationship 1.660 539 066 60 e-27 0.000 000 000 50 e-27 kg |
|
|
atomic unit of 1st hyperpolarizability 3.206 361 3061 e-53 0.000 000 0015 e-53 C^3 m^3 J^-2 |
|
|
atomic unit of 2nd hyperpolarizability 6.235 379 9905 e-65 0.000 000 0038 e-65 C^4 m^4 J^-3 |
|
|
atomic unit of action 1.054 571 817... e-34 (exact) J s |
|
|
atomic unit of charge 1.602 176 634 e-19 (exact) C |
|
|
atomic unit of charge density 1.081 202 384 57 e12 0.000 000 000 49 e12 C m^-3 |
|
|
atomic unit of current 6.623 618 237 510 e-3 0.000 000 000 013 e-3 A |
|
|
atomic unit of electric dipole mom. 8.478 353 6255 e-30 0.000 000 0013 e-30 C m |
|
|
atomic unit of electric field 5.142 206 747 63 e11 0.000 000 000 78 e11 V m^-1 |
|
|
atomic unit of electric field gradient 9.717 362 4292 e21 0.000 000 0029 e21 V m^-2 |
|
|
atomic unit of electric polarizability 1.648 777 274 36 e-41 0.000 000 000 50 e-41 C^2 m^2 J^-1 |
|
|
atomic unit of electric potential 27.211 386 245 988 0.000 000 000 053 V |
|
|
atomic unit of electric quadrupole mom. 4.486 551 5246 e-40 0.000 000 0014 e-40 C m^2 |
|
|
atomic unit of energy 4.359 744 722 2071 e-18 0.000 000 000 0085 e-18 J |
|
|
atomic unit of force 8.238 723 4983 e-8 0.000 000 0012 e-8 N |
|
|
atomic unit of length 5.291 772 109 03 e-11 0.000 000 000 80 e-11 m |
|
|
atomic unit of mag. dipole mom. 1.854 802 015 66 e-23 0.000 000 000 56 e-23 J T^-1 |
|
|
atomic unit of mag. flux density 2.350 517 567 58 e5 0.000 000 000 71 e5 T |
|
|
atomic unit of magnetizability 7.891 036 6008 e-29 0.000 000 0048 e-29 J T^-2 |
|
|
atomic unit of mass 9.109 383 7015 e-31 0.000 000 0028 e-31 kg |
|
|
atomic unit of momentum 1.992 851 914 10 e-24 0.000 000 000 30 e-24 kg m s^-1 |
|
|
atomic unit of permittivity 1.112 650 055 45 e-10 0.000 000 000 17 e-10 F m^-1 |
|
|
atomic unit of time 2.418 884 326 5857 e-17 0.000 000 000 0047 e-17 s |
|
|
atomic unit of velocity 2.187 691 263 64 e6 0.000 000 000 33 e6 m s^-1 |
|
|
Avogadro constant 6.022 140 76 e23 (exact) mol^-1 |
|
|
Bohr magneton 9.274 010 0783 e-24 0.000 000 0028 e-24 J T^-1 |
|
|
Bohr magneton in eV/T 5.788 381 8060 e-5 0.000 000 0017 e-5 eV T^-1 |
|
|
Bohr magneton in Hz/T 1.399 624 493 61 e10 0.000 000 000 42 e10 Hz T^-1 |
|
|
Bohr magneton in inverse meter per tesla 46.686 447 783 0.000 000 014 m^-1 T^-1 |
|
|
Bohr magneton in K/T 0.671 713 815 63 0.000 000 000 20 K T^-1 |
|
|
Bohr radius 5.291 772 109 03 e-11 0.000 000 000 80 e-11 m |
|
|
Boltzmann constant 1.380 649 e-23 (exact) J K^-1 |
|
|
Boltzmann constant in eV/K 8.617 333 262... e-5 (exact) eV K^-1 |
|
|
Boltzmann constant in Hz/K 2.083 661 912... e10 (exact) Hz K^-1 |
|
|
Boltzmann constant in inverse meter per kelvin 69.503 480 04... (exact) m^-1 K^-1 |
|
|
characteristic impedance of vacuum 376.730 313 668 0.000 000 057 ohm |
|
|
classical electron radius 2.817 940 3262 e-15 0.000 000 0013 e-15 m |
|
|
Compton wavelength 2.426 310 238 67 e-12 0.000 000 000 73 e-12 m |
|
|
conductance quantum 7.748 091 729... e-5 (exact) S |
|
|
conventional value of ampere-90 1.000 000 088 87... (exact) A |
|
|
conventional value of coulomb-90 1.000 000 088 87... (exact) C |
|
|
conventional value of farad-90 0.999 999 982 20... (exact) F |
|
|
conventional value of henry-90 1.000 000 017 79... (exact) H |
|
|
conventional value of Josephson constant 483 597.9 e9 (exact) Hz V^-1 |
|
|
conventional value of ohm-90 1.000 000 017 79... (exact) ohm |
|
|
conventional value of volt-90 1.000 000 106 66... (exact) V |
|
|
conventional value of von Klitzing constant 25 812.807 (exact) ohm |
|
|
conventional value of watt-90 1.000 000 195 53... (exact) W |
|
|
Cu x unit 1.002 076 97 e-13 0.000 000 28 e-13 m |
|
|
deuteron-electron mag. mom. ratio -4.664 345 551 e-4 0.000 000 012 e-4 |
|
|
deuteron-electron mass ratio 3670.482 967 88 0.000 000 13 |
|
|
deuteron g factor 0.857 438 2338 0.000 000 0022 |
|
|
deuteron mag. mom. 4.330 735 094 e-27 0.000 000 011 e-27 J T^-1 |
|
|
deuteron mag. mom. to Bohr magneton ratio 4.669 754 570 e-4 0.000 000 012 e-4 |
|
|
deuteron mag. mom. to nuclear magneton ratio 0.857 438 2338 0.000 000 0022 |
|
|
deuteron mass 3.343 583 7724 e-27 0.000 000 0010 e-27 kg |
|
|
deuteron mass energy equivalent 3.005 063 231 02 e-10 0.000 000 000 91 e-10 J |
|
|
deuteron mass energy equivalent in MeV 1875.612 942 57 0.000 000 57 MeV |
|
|
deuteron mass in u 2.013 553 212 745 0.000 000 000 040 u |
|
|
deuteron molar mass 2.013 553 212 05 e-3 0.000 000 000 61 e-3 kg mol^-1 |
|
|
deuteron-neutron mag. mom. ratio -0.448 206 53 0.000 000 11 |
|
|
deuteron-proton mag. mom. ratio 0.307 012 209 39 0.000 000 000 79 |
|
|
deuteron-proton mass ratio 1.999 007 501 39 0.000 000 000 11 |
|
|
deuteron relative atomic mass 2.013 553 212 745 0.000 000 000 040 |
|
|
deuteron rms charge radius 2.127 99 e-15 0.000 74 e-15 m |
|
|
electron charge to mass quotient -1.758 820 010 76 e11 0.000 000 000 53 e11 C kg^-1 |
|
|
electron-deuteron mag. mom. ratio -2143.923 4915 0.000 0056 |
|
|
electron-deuteron mass ratio 2.724 437 107 462 e-4 0.000 000 000 096 e-4 |
|
|
electron g factor -2.002 319 304 362 56 0.000 000 000 000 35 |
|
|
electron gyromag. ratio 1.760 859 630 23 e11 0.000 000 000 53 e11 s^-1 T^-1 |
|
|
electron gyromag. ratio in MHz/T 28 024.951 4242 0.000 0085 MHz T^-1 |
|
|
electron-helion mass ratio 1.819 543 074 573 e-4 0.000 000 000 079 e-4 |
|
|
electron mag. mom. -9.284 764 7043 e-24 0.000 000 0028 e-24 J T^-1 |
|
|
electron mag. mom. anomaly 1.159 652 181 28 e-3 0.000 000 000 18 e-3 |
|
|
electron mag. mom. to Bohr magneton ratio -1.001 159 652 181 28 0.000 000 000 000 18 |
|
|
electron mag. mom. to nuclear magneton ratio -1838.281 971 88 0.000 000 11 |
|
|
electron mass 9.109 383 7015 e-31 0.000 000 0028 e-31 kg |
|
|
electron mass energy equivalent 8.187 105 7769 e-14 0.000 000 0025 e-14 J |
|
|
electron mass energy equivalent in MeV 0.510 998 950 00 0.000 000 000 15 MeV |
|
|
electron mass in u 5.485 799 090 65 e-4 0.000 000 000 16 e-4 u |
|
|
electron molar mass 5.485 799 0888 e-7 0.000 000 0017 e-7 kg mol^-1 |
|
|
electron-muon mag. mom. ratio 206.766 9883 0.000 0046 |
|
|
electron-muon mass ratio 4.836 331 69 e-3 0.000 000 11 e-3 |
|
|
electron-neutron mag. mom. ratio 960.920 50 0.000 23 |
|
|
electron-neutron mass ratio 5.438 673 4424 e-4 0.000 000 0026 e-4 |
|
|
electron-proton mag. mom. ratio -658.210 687 89 0.000 000 20 |
|
|
electron-proton mass ratio 5.446 170 214 87 e-4 0.000 000 000 33 e-4 |
|
|
electron relative atomic mass 5.485 799 090 65 e-4 0.000 000 000 16 e-4 |
|
|
electron-tau mass ratio 2.875 85 e-4 0.000 19 e-4 |
|
|
electron to alpha particle mass ratio 1.370 933 554 787 e-4 0.000 000 000 045 e-4 |
|
|
electron to shielded helion mag. mom. ratio 864.058 257 0.000 010 |
|
|
electron to shielded proton mag. mom. ratio -658.227 5971 0.000 0072 |
|
|
electron-triton mass ratio 1.819 200 062 251 e-4 0.000 000 000 090 e-4 |
|
|
electron volt 1.602 176 634 e-19 (exact) J |
|
|
electron volt-atomic mass unit relationship 1.073 544 102 33 e-9 0.000 000 000 32 e-9 u |
|
|
electron volt-hartree relationship 3.674 932 217 5655 e-2 0.000 000 000 0071 e-2 E_h |
|
|
electron volt-hertz relationship 2.417 989 242... e14 (exact) Hz |
|
|
electron volt-inverse meter relationship 8.065 543 937... e5 (exact) m^-1 |
|
|
electron volt-joule relationship 1.602 176 634 e-19 (exact) J |
|
|
electron volt-kelvin relationship 1.160 451 812... e4 (exact) K |
|
|
electron volt-kilogram relationship 1.782 661 921... e-36 (exact) kg |
|
|
elementary charge 1.602 176 634 e-19 (exact) C |
|
|
elementary charge over h-bar 1.519 267 447... e15 (exact) A J^-1 |
|
|
Faraday constant 96 485.332 12... (exact) C mol^-1 |
|
|
Fermi coupling constant 1.166 3787 e-5 0.000 0006 e-5 GeV^-2 |
|
|
fine-structure constant 7.297 352 5693 e-3 0.000 000 0011 e-3 |
|
|
first radiation constant 3.741 771 852... e-16 (exact) W m^2 |
|
|
first radiation constant for spectral radiance 1.191 042 972... e-16 (exact) W m^2 sr^-1 |
|
|
hartree-atomic mass unit relationship 2.921 262 322 05 e-8 0.000 000 000 88 e-8 u |
|
|
hartree-electron volt relationship 27.211 386 245 988 0.000 000 000 053 eV |
|
|
Hartree energy 4.359 744 722 2071 e-18 0.000 000 000 0085 e-18 J |
|
|
Hartree energy in eV 27.211 386 245 988 0.000 000 000 053 eV |
|
|
hartree-hertz relationship 6.579 683 920 502 e15 0.000 000 000 013 e15 Hz |
|
|
hartree-inverse meter relationship 2.194 746 313 6320 e7 0.000 000 000 0043 e7 m^-1 |
|
|
hartree-joule relationship 4.359 744 722 2071 e-18 0.000 000 000 0085 e-18 J |
|
|
hartree-kelvin relationship 3.157 750 248 0407 e5 0.000 000 000 0061 e5 K |
|
|
hartree-kilogram relationship 4.850 870 209 5432 e-35 0.000 000 000 0094 e-35 kg |
|
|
helion-electron mass ratio 5495.885 280 07 0.000 000 24 |
|
|
helion g factor -4.255 250 615 0.000 000 050 |
|
|
helion mag. mom. -1.074 617 532 e-26 0.000 000 013 e-26 J T^-1 |
|
|
helion mag. mom. to Bohr magneton ratio -1.158 740 958 e-3 0.000 000 014 e-3 |
|
|
helion mag. mom. to nuclear magneton ratio -2.127 625 307 0.000 000 025 |
|
|
helion mass 5.006 412 7796 e-27 0.000 000 0015 e-27 kg |
|
|
helion mass energy equivalent 4.499 539 4125 e-10 0.000 000 0014 e-10 J |
|
|
helion mass energy equivalent in MeV 2808.391 607 43 0.000 000 85 MeV |
|
|
helion mass in u 3.014 932 247 175 0.000 000 000 097 u |
|
|
helion molar mass 3.014 932 246 13 e-3 0.000 000 000 91 e-3 kg mol^-1 |
|
|
helion-proton mass ratio 2.993 152 671 67 0.000 000 000 13 |
|
|
helion relative atomic mass 3.014 932 247 175 0.000 000 000 097 |
|
|
helion shielding shift 5.996 743 e-5 0.000 010 e-5 |
|
|
hertz-atomic mass unit relationship 4.439 821 6652 e-24 0.000 000 0013 e-24 u |
|
|
hertz-electron volt relationship 4.135 667 696... e-15 (exact) eV |
|
|
hertz-hartree relationship 1.519 829 846 0570 e-16 0.000 000 000 0029 e-16 E_h |
|
|
hertz-inverse meter relationship 3.335 640 951... e-9 (exact) m^-1 |
|
|
hertz-joule relationship 6.626 070 15 e-34 (exact) J |
|
|
hertz-kelvin relationship 4.799 243 073... e-11 (exact) K |
|
|
hertz-kilogram relationship 7.372 497 323... e-51 (exact) kg |
|
|
hyperfine transition frequency of Cs-133 9 192 631 770 (exact) Hz |
|
|
inverse fine-structure constant 137.035 999 084 0.000 000 021 |
|
|
inverse meter-atomic mass unit relationship 1.331 025 050 10 e-15 0.000 000 000 40 e-15 u |
|
|
inverse meter-electron volt relationship 1.239 841 984... e-6 (exact) eV |
|
|
inverse meter-hartree relationship 4.556 335 252 9120 e-8 0.000 000 000 0088 e-8 E_h |
|
|
inverse meter-hertz relationship 299 792 458 (exact) Hz |
|
|
inverse meter-joule relationship 1.986 445 857... e-25 (exact) J |
|
|
inverse meter-kelvin relationship 1.438 776 877... e-2 (exact) K |
|
|
inverse meter-kilogram relationship 2.210 219 094... e-42 (exact) kg |
|
|
inverse of conductance quantum 12 906.403 72... (exact) ohm |
|
|
Josephson constant 483 597.848 4... e9 (exact) Hz V^-1 |
|
|
joule-atomic mass unit relationship 6.700 535 2565 e9 0.000 000 0020 e9 u |
|
|
joule-electron volt relationship 6.241 509 074... e18 (exact) eV |
|
|
joule-hartree relationship 2.293 712 278 3963 e17 0.000 000 000 0045 e17 E_h |
|
|
joule-hertz relationship 1.509 190 179... e33 (exact) Hz |
|
|
joule-inverse meter relationship 5.034 116 567... e24 (exact) m^-1 |
|
|
joule-kelvin relationship 7.242 970 516... e22 (exact) K |
|
|
joule-kilogram relationship 1.112 650 056... e-17 (exact) kg |
|
|
kelvin-atomic mass unit relationship 9.251 087 3014 e-14 0.000 000 0028 e-14 u |
|
|
kelvin-electron volt relationship 8.617 333 262... e-5 (exact) eV |
|
|
kelvin-hartree relationship 3.166 811 563 4556 e-6 0.000 000 000 0061 e-6 E_h |
|
|
kelvin-hertz relationship 2.083 661 912... e10 (exact) Hz |
|
|
kelvin-inverse meter relationship 69.503 480 04... (exact) m^-1 |
|
|
kelvin-joule relationship 1.380 649 e-23 (exact) J |
|
|
kelvin-kilogram relationship 1.536 179 187... e-40 (exact) kg |
|
|
kilogram-atomic mass unit relationship 6.022 140 7621 e26 0.000 000 0018 e26 u |
|
|
kilogram-electron volt relationship 5.609 588 603... e35 (exact) eV |
|
|
kilogram-hartree relationship 2.061 485 788 7409 e34 0.000 000 000 0040 e34 E_h |
|
|
kilogram-hertz relationship 1.356 392 489... e50 (exact) Hz |
|
|
kilogram-inverse meter relationship 4.524 438 335... e41 (exact) m^-1 |
|
|
kilogram-joule relationship 8.987 551 787... e16 (exact) J |
|
|
kilogram-kelvin relationship 6.509 657 260... e39 (exact) K |
|
|
lattice parameter of silicon 5.431 020 511 e-10 0.000 000 089 e-10 m |
|
|
lattice spacing of ideal Si (220) 1.920 155 716 e-10 0.000 000 032 e-10 m |
|
|
Loschmidt constant (273.15 K, 100 kPa) 2.651 645 804... e25 (exact) m^-3 |
|
|
Loschmidt constant (273.15 K, 101.325 kPa) 2.686 780 111... e25 (exact) m^-3 |
|
|
luminous efficacy 683 (exact) lm W^-1 |
|
|
mag. flux quantum 2.067 833 848... e-15 (exact) Wb |
|
|
molar gas constant 8.314 462 618... (exact) J mol^-1 K^-1 |
|
|
molar mass constant 0.999 999 999 65 e-3 0.000 000 000 30 e-3 kg mol^-1 |
|
|
molar mass of carbon-12 11.999 999 9958 e-3 0.000 000 0036 e-3 kg mol^-1 |
|
|
molar Planck constant 3.990 312 712... e-10 (exact) J Hz^-1 mol^-1 |
|
|
molar volume of ideal gas (273.15 K, 100 kPa) 22.710 954 64... e-3 (exact) m^3 mol^-1 |
|
|
molar volume of ideal gas (273.15 K, 101.325 kPa) 22.413 969 54... e-3 (exact) m^3 mol^-1 |
|
|
molar volume of silicon 1.205 883 199 e-5 0.000 000 060 e-5 m^3 mol^-1 |
|
|
Mo x unit 1.002 099 52 e-13 0.000 000 53 e-13 m |
|
|
muon Compton wavelength 1.173 444 110 e-14 0.000 000 026 e-14 m |
|
|
muon-electron mass ratio 206.768 2830 0.000 0046 |
|
|
muon g factor -2.002 331 8418 0.000 000 0013 |
|
|
muon mag. mom. -4.490 448 30 e-26 0.000 000 10 e-26 J T^-1 |
|
|
muon mag. mom. anomaly 1.165 920 89 e-3 0.000 000 63 e-3 |
|
|
muon mag. mom. to Bohr magneton ratio -4.841 970 47 e-3 0.000 000 11 e-3 |
|
|
muon mag. mom. to nuclear magneton ratio -8.890 597 03 0.000 000 20 |
|
|
muon mass 1.883 531 627 e-28 0.000 000 042 e-28 kg |
|
|
muon mass energy equivalent 1.692 833 804 e-11 0.000 000 038 e-11 J |
|
|
muon mass energy equivalent in MeV 105.658 3755 0.000 0023 MeV |
|
|
muon mass in u 0.113 428 9259 0.000 000 0025 u |
|
|
muon molar mass 1.134 289 259 e-4 0.000 000 025 e-4 kg mol^-1 |
|
|
muon-neutron mass ratio 0.112 454 5170 0.000 000 0025 |
|
|
muon-proton mag. mom. ratio -3.183 345 142 0.000 000 071 |
|
|
muon-proton mass ratio 0.112 609 5264 0.000 000 0025 |
|
|
muon-tau mass ratio 5.946 35 e-2 0.000 40 e-2 |
|
|
natural unit of action 1.054 571 817... e-34 (exact) J s |
|
|
natural unit of action in eV s 6.582 119 569... e-16 (exact) eV s |
|
|
natural unit of energy 8.187 105 7769 e-14 0.000 000 0025 e-14 J |
|
|
natural unit of energy in MeV 0.510 998 950 00 0.000 000 000 15 MeV |
|
|
natural unit of length 3.861 592 6796 e-13 0.000 000 0012 e-13 m |
|
|
natural unit of mass 9.109 383 7015 e-31 0.000 000 0028 e-31 kg |
|
|
natural unit of momentum 2.730 924 530 75 e-22 0.000 000 000 82 e-22 kg m s^-1 |
|
|
natural unit of momentum in MeV/c 0.510 998 950 00 0.000 000 000 15 MeV/c |
|
|
natural unit of time 1.288 088 668 19 e-21 0.000 000 000 39 e-21 s |
|
|
natural unit of velocity 299 792 458 (exact) m s^-1 |
|
|
neutron Compton wavelength 1.319 590 905 81 e-15 0.000 000 000 75 e-15 m |
|
|
neutron-electron mag. mom. ratio 1.040 668 82 e-3 0.000 000 25 e-3 |
|
|
neutron-electron mass ratio 1838.683 661 73 0.000 000 89 |
|
|
neutron g factor -3.826 085 45 0.000 000 90 |
|
|
neutron gyromag. ratio 1.832 471 71 e8 0.000 000 43 e8 s^-1 T^-1 |
|
|
neutron gyromag. ratio in MHz/T 29.164 6931 0.000 0069 MHz T^-1 |
|
|
neutron mag. mom. -9.662 3651 e-27 0.000 0023 e-27 J T^-1 |
|
|
neutron mag. mom. to Bohr magneton ratio -1.041 875 63 e-3 0.000 000 25 e-3 |
|
|
neutron mag. mom. to nuclear magneton ratio -1.913 042 73 0.000 000 45 |
|
|
neutron mass 1.674 927 498 04 e-27 0.000 000 000 95 e-27 kg |
|
|
neutron mass energy equivalent 1.505 349 762 87 e-10 0.000 000 000 86 e-10 J |
|
|
neutron mass energy equivalent in MeV 939.565 420 52 0.000 000 54 MeV |
|
|
neutron mass in u 1.008 664 915 95 0.000 000 000 49 u |
|
|
neutron molar mass 1.008 664 915 60 e-3 0.000 000 000 57 e-3 kg mol^-1 |
|
|
neutron-muon mass ratio 8.892 484 06 0.000 000 20 |
|
|
neutron-proton mag. mom. ratio -0.684 979 34 0.000 000 16 |
|
|
neutron-proton mass difference 2.305 574 35 e-30 0.000 000 82 e-30 kg |
|
|
neutron-proton mass difference energy equivalent 2.072 146 89 e-13 0.000 000 74 e-13 J |
|
|
neutron-proton mass difference energy equivalent in MeV 1.293 332 36 0.000 000 46 MeV |
|
|
neutron-proton mass difference in u 1.388 449 33 e-3 0.000 000 49 e-3 u |
|
|
neutron-proton mass ratio 1.001 378 419 31 0.000 000 000 49 |
|
|
neutron relative atomic mass 1.008 664 915 95 0.000 000 000 49 |
|
|
neutron-tau mass ratio 0.528 779 0.000 036 |
|
|
neutron to shielded proton mag. mom. ratio -0.684 996 94 0.000 000 16 |
|
|
Newtonian constant of gravitation 6.674 30 e-11 0.000 15 e-11 m^3 kg^-1 s^-2 |
|
|
Newtonian constant of gravitation over h-bar c 6.708 83 e-39 0.000 15 e-39 (GeV/c^2)^-2 |
|
|
nuclear magneton 5.050 783 7461 e-27 0.000 000 0015 e-27 J T^-1 |
|
|
nuclear magneton in eV/T 3.152 451 258 44 e-8 0.000 000 000 96 e-8 eV T^-1 |
|
|
nuclear magneton in inverse meter per tesla 2.542 623 413 53 e-2 0.000 000 000 78 e-2 m^-1 T^-1 |
|
|
nuclear magneton in K/T 3.658 267 7756 e-4 0.000 000 0011 e-4 K T^-1 |
|
|
nuclear magneton in MHz/T 7.622 593 2291 0.000 000 0023 MHz T^-1 |
|
|
Planck constant 6.626 070 15 e-34 (exact) J Hz^-1 |
|
|
Planck constant in eV/Hz 4.135 667 696... e-15 (exact) eV Hz^-1 |
|
|
Planck length 1.616 255 e-35 0.000 018 e-35 m |
|
|
Planck mass 2.176 434 e-8 0.000 024 e-8 kg |
|
|
Planck mass energy equivalent in GeV 1.220 890 e19 0.000 014 e19 GeV |
|
|
Planck temperature 1.416 784 e32 0.000 016 e32 K |
|
|
Planck time 5.391 247 e-44 0.000 060 e-44 s |
|
|
proton charge to mass quotient 9.578 833 1560 e7 0.000 000 0029 e7 C kg^-1 |
|
|
proton Compton wavelength 1.321 409 855 39 e-15 0.000 000 000 40 e-15 m |
|
|
proton-electron mass ratio 1836.152 673 43 0.000 000 11 |
|
|
proton g factor 5.585 694 6893 0.000 000 0016 |
|
|
proton gyromag. ratio 2.675 221 8744 e8 0.000 000 0011 e8 s^-1 T^-1 |
|
|
proton gyromag. ratio in MHz/T 42.577 478 518 0.000 000 018 MHz T^-1 |
|
|
proton mag. mom. 1.410 606 797 36 e-26 0.000 000 000 60 e-26 J T^-1 |
|
|
proton mag. mom. to Bohr magneton ratio 1.521 032 202 30 e-3 0.000 000 000 46 e-3 |
|
|
proton mag. mom. to nuclear magneton ratio 2.792 847 344 63 0.000 000 000 82 |
|
|
proton mag. shielding correction 2.5689 e-5 0.0011 e-5 |
|
|
proton mass 1.672 621 923 69 e-27 0.000 000 000 51 e-27 kg |
|
|
proton mass energy equivalent 1.503 277 615 98 e-10 0.000 000 000 46 e-10 J |
|
|
proton mass energy equivalent in MeV 938.272 088 16 0.000 000 29 MeV |
|
|
proton mass in u 1.007 276 466 621 0.000 000 000 053 u |
|
|
proton molar mass 1.007 276 466 27 e-3 0.000 000 000 31 e-3 kg mol^-1 |
|
|
proton-muon mass ratio 8.880 243 37 0.000 000 20 |
|
|
proton-neutron mag. mom. ratio -1.459 898 05 0.000 000 34 |
|
|
proton-neutron mass ratio 0.998 623 478 12 0.000 000 000 49 |
|
|
proton relative atomic mass 1.007 276 466 621 0.000 000 000 053 |
|
|
proton rms charge radius 8.414 e-16 0.019 e-16 m |
|
|
proton-tau mass ratio 0.528 051 0.000 036 |
|
|
quantum of circulation 3.636 947 5516 e-4 0.000 000 0011 e-4 m^2 s^-1 |
|
|
quantum of circulation times 2 7.273 895 1032 e-4 0.000 000 0022 e-4 m^2 s^-1 |
|
|
reduced Compton wavelength 3.861 592 6796 e-13 0.000 000 0012 e-13 m |
|
|
reduced muon Compton wavelength 1.867 594 306 e-15 0.000 000 042 e-15 m |
|
|
reduced neutron Compton wavelength 2.100 194 1552 e-16 0.000 000 0012 e-16 m |
|
|
reduced Planck constant 1.054 571 817... e-34 (exact) J s |
|
|
reduced Planck constant in eV s 6.582 119 569... e-16 (exact) eV s |
|
|
reduced Planck constant times c in MeV fm 197.326 980 4... (exact) MeV fm |
|
|
reduced proton Compton wavelength 2.103 089 103 36 e-16 0.000 000 000 64 e-16 m |
|
|
reduced tau Compton wavelength 1.110 538 e-16 0.000 075 e-16 m |
|
|
Rydberg constant 10 973 731.568 160 0.000 021 m^-1 |
|
|
Rydberg constant times c in Hz 3.289 841 960 2508 e15 0.000 000 000 0064 e15 Hz |
|
|
Rydberg constant times hc in eV 13.605 693 122 994 0.000 000 000 026 eV |
|
|
Rydberg constant times hc in J 2.179 872 361 1035 e-18 0.000 000 000 0042 e-18 J |
|
|
Sackur-Tetrode constant (1 K, 100 kPa) -1.151 707 537 06 0.000 000 000 45 |
|
|
Sackur-Tetrode constant (1 K, 101.325 kPa) -1.164 870 523 58 0.000 000 000 45 |
|
|
second radiation constant 1.438 776 877... e-2 (exact) m K |
|
|
shielded helion gyromag. ratio 2.037 894 569 e8 0.000 000 024 e8 s^-1 T^-1 |
|
|
shielded helion gyromag. ratio in MHz/T 32.434 099 42 0.000 000 38 MHz T^-1 |
|
|
shielded helion mag. mom. -1.074 553 090 e-26 0.000 000 013 e-26 J T^-1 |
|
|
shielded helion mag. mom. to Bohr magneton ratio -1.158 671 471 e-3 0.000 000 014 e-3 |
|
|
shielded helion mag. mom. to nuclear magneton ratio -2.127 497 719 0.000 000 025 |
|
|
shielded helion to proton mag. mom. ratio -0.761 766 5618 0.000 000 0089 |
|
|
shielded helion to shielded proton mag. mom. ratio -0.761 786 1313 0.000 000 0033 |
|
|
shielded proton gyromag. ratio 2.675 153 151 e8 0.000 000 029 e8 s^-1 T^-1 |
|
|
shielded proton gyromag. ratio in MHz/T 42.576 384 74 0.000 000 46 MHz T^-1 |
|
|
shielded proton mag. mom. 1.410 570 560 e-26 0.000 000 015 e-26 J T^-1 |
|
|
shielded proton mag. mom. to Bohr magneton ratio 1.520 993 128 e-3 0.000 000 017 e-3 |
|
|
shielded proton mag. mom. to nuclear magneton ratio 2.792 775 599 0.000 000 030 |
|
|
shielding difference of d and p in HD 2.0200 e-8 0.0020 e-8 |
|
|
shielding difference of t and p in HT 2.4140 e-8 0.0020 e-8 |
|
|
speed of light in vacuum 299 792 458 (exact) m s^-1 |
|
|
standard acceleration of gravity 9.806 65 (exact) m s^-2 |
|
|
standard atmosphere 101 325 (exact) Pa |
|
|
standard-state pressure 100 000 (exact) Pa |
|
|
Stefan-Boltzmann constant 5.670 374 419... e-8 (exact) W m^-2 K^-4 |
|
|
tau Compton wavelength 6.977 71 e-16 0.000 47 e-16 m |
|
|
tau-electron mass ratio 3477.23 0.23 |
|
|
tau energy equivalent 1776.86 0.12 MeV |
|
|
tau mass 3.167 54 e-27 0.000 21 e-27 kg |
|
|
tau mass energy equivalent 2.846 84 e-10 0.000 19 e-10 J |
|
|
tau mass in u 1.907 54 0.000 13 u |
|
|
tau molar mass 1.907 54 e-3 0.000 13 e-3 kg mol^-1 |
|
|
tau-muon mass ratio 16.8170 0.0011 |
|
|
tau-neutron mass ratio 1.891 15 0.000 13 |
|
|
tau-proton mass ratio 1.893 76 0.000 13 |
|
|
Thomson cross section 6.652 458 7321 e-29 0.000 000 0060 e-29 m^2 |
|
|
triton-electron mass ratio 5496.921 535 73 0.000 000 27 |
|
|
triton g factor 5.957 924 931 0.000 000 012 |
|
|
triton mag. mom. 1.504 609 5202 e-26 0.000 000 0030 e-26 J T^-1 |
|
|
triton mag. mom. to Bohr magneton ratio 1.622 393 6651 e-3 0.000 000 0032 e-3 |
|
|
triton mag. mom. to nuclear magneton ratio 2.978 962 4656 0.000 000 0059 |
|
|
triton mass 5.007 356 7446 e-27 0.000 000 0015 e-27 kg |
|
|
triton mass energy equivalent 4.500 387 8060 e-10 0.000 000 0014 e-10 J |
|
|
triton mass energy equivalent in MeV 2808.921 132 98 0.000 000 85 MeV |
|
|
triton mass in u 3.015 500 716 21 0.000 000 000 12 u |
|
|
triton molar mass 3.015 500 715 17 e-3 0.000 000 000 92 e-3 kg mol^-1 |
|
|
triton-proton mass ratio 2.993 717 034 14 0.000 000 000 15 |
|
|
triton relative atomic mass 3.015 500 716 21 0.000 000 000 12 |
|
|
triton to proton mag. mom. ratio 1.066 639 9191 0.000 000 0021 |
|
|
unified atomic mass unit 1.660 539 066 60 e-27 0.000 000 000 50 e-27 kg |
|
|
vacuum electric permittivity 8.854 187 8128 e-12 0.000 000 0013 e-12 F m^-1 |
|
|
vacuum mag. permeability 1.256 637 062 12 e-6 0.000 000 000 19 e-6 N A^-2 |
|
|
von Klitzing constant 25 812.807 45... (exact) ohm |
|
|
weak mixing angle 0.222 90 0.000 30 |
|
|
Wien frequency displacement law constant 5.878 925 757... e10 (exact) Hz K^-1 |
|
|
Wien wavelength displacement law constant 2.897 771 955... e-3 (exact) m K |
|
|
W to Z mass ratio 0.881 53 0.000 17 """ |
|
|
|
|
|
|
|
|
def exact2018(exact): |
|
|
|
|
|
c = exact['speed of light in vacuum'] |
|
|
h = exact['Planck constant'] |
|
|
e = exact['elementary charge'] |
|
|
k = exact['Boltzmann constant'] |
|
|
N_A = exact['Avogadro constant'] |
|
|
|
|
|
|
|
|
R = N_A * k |
|
|
hbar = h / (2*math.pi) |
|
|
G_0 = 2 * e**2 / h |
|
|
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|
|
|
|
|
|
|
|
|
|
|
alpha_W = 2.821439372122078893403 |
|
|
x_W = 4.965114231744276303699 |
|
|
|
|
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|
|
|
|
|
|
K_J90 = exact['conventional value of Josephson constant'] |
|
|
K_J = 2 * e / h |
|
|
R_K90 = exact['conventional value of von Klitzing constant'] |
|
|
R_K = h / e**2 |
|
|
V_90 = K_J90 / K_J |
|
|
ohm_90 = R_K / R_K90 |
|
|
A_90 = V_90 / ohm_90 |
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|
|
|
replace = { |
|
|
'atomic unit of action': hbar, |
|
|
'Boltzmann constant in eV/K': k / e, |
|
|
'Boltzmann constant in Hz/K': k / h, |
|
|
'Boltzmann constant in inverse meter per kelvin': k / (h * c), |
|
|
'conductance quantum': G_0, |
|
|
'conventional value of ampere-90': A_90, |
|
|
'conventional value of coulomb-90': A_90, |
|
|
'conventional value of farad-90': 1 / ohm_90, |
|
|
'conventional value of henry-90': ohm_90, |
|
|
'conventional value of ohm-90': ohm_90, |
|
|
'conventional value of volt-90': V_90, |
|
|
'conventional value of watt-90': V_90**2 / ohm_90, |
|
|
'electron volt-hertz relationship': e / h, |
|
|
'electron volt-inverse meter relationship': e / (h * c), |
|
|
'electron volt-kelvin relationship': e / k, |
|
|
'electron volt-kilogram relationship': e / c**2, |
|
|
'elementary charge over h-bar': e / hbar, |
|
|
'Faraday constant': e * N_A, |
|
|
'first radiation constant': 2 * math.pi * h * c**2, |
|
|
'first radiation constant for spectral radiance': 2 * h * c**2, |
|
|
'hertz-electron volt relationship': h / e, |
|
|
'hertz-inverse meter relationship': 1 / c, |
|
|
'hertz-kelvin relationship': h / k, |
|
|
'hertz-kilogram relationship': h / c**2, |
|
|
'inverse meter-electron volt relationship': (h * c) / e, |
|
|
'inverse meter-joule relationship': h * c, |
|
|
'inverse meter-kelvin relationship': h * c / k, |
|
|
'inverse meter-kilogram relationship': h / c, |
|
|
'inverse of conductance quantum': 1 / G_0, |
|
|
'Josephson constant': K_J, |
|
|
'joule-electron volt relationship': 1 / e, |
|
|
'joule-hertz relationship': 1 / h, |
|
|
'joule-inverse meter relationship': 1 / (h * c), |
|
|
'joule-kelvin relationship': 1 / k, |
|
|
'joule-kilogram relationship': 1 / c**2, |
|
|
'kelvin-electron volt relationship': k / e, |
|
|
'kelvin-hertz relationship': k / h, |
|
|
'kelvin-inverse meter relationship': k / (h * c), |
|
|
'kelvin-kilogram relationship': k / c**2, |
|
|
'kilogram-electron volt relationship': c**2 / e, |
|
|
'kilogram-hertz relationship': c**2 / h, |
|
|
'kilogram-inverse meter relationship': c / h, |
|
|
'kilogram-joule relationship': c**2, |
|
|
'kilogram-kelvin relationship': c**2 / k, |
|
|
'Loschmidt constant (273.15 K, 100 kPa)': 100e3 / 273.15 / k, |
|
|
'Loschmidt constant (273.15 K, 101.325 kPa)': 101.325e3 / 273.15 / k, |
|
|
'mag. flux quantum': h / (2 * e), |
|
|
'molar gas constant': R, |
|
|
'molar Planck constant': h * N_A, |
|
|
'molar volume of ideal gas (273.15 K, 100 kPa)': R * 273.15 / 100e3, |
|
|
'molar volume of ideal gas (273.15 K, 101.325 kPa)': R * 273.15 / 101.325e3, |
|
|
'natural unit of action': hbar, |
|
|
'natural unit of action in eV s': hbar / e, |
|
|
'Planck constant in eV/Hz': h / e, |
|
|
'reduced Planck constant': hbar, |
|
|
'reduced Planck constant in eV s': hbar / e, |
|
|
'reduced Planck constant times c in MeV fm': hbar * c / (e * 1e6 * 1e-15), |
|
|
'second radiation constant': h * c / k, |
|
|
'Stefan-Boltzmann constant': 2 * math.pi**5 * k**4 / (15 * h**3 * c**2), |
|
|
'von Klitzing constant': R_K, |
|
|
'Wien frequency displacement law constant': alpha_W * k / h, |
|
|
'Wien wavelength displacement law constant': h * c / (x_W * k), |
|
|
} |
|
|
return replace |
|
|
|
|
|
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|
txt2022 = """\ |
|
|
alpha particle-electron mass ratio 7294.299 541 71 0.000 000 17 |
|
|
alpha particle mass 6.644 657 3450 e-27 0.000 000 0021 e-27 kg |
|
|
alpha particle mass energy equivalent 5.971 920 1997 e-10 0.000 000 0019 e-10 J |
|
|
alpha particle mass energy equivalent in MeV 3727.379 4118 0.000 0012 MeV |
|
|
alpha particle mass in u 4.001 506 179 129 0.000 000 000 062 u |
|
|
alpha particle molar mass 4.001 506 1833 e-3 0.000 000 0012 e-3 kg mol^-1 |
|
|
alpha particle-proton mass ratio 3.972 599 690 252 0.000 000 000 070 |
|
|
alpha particle relative atomic mass 4.001 506 179 129 0.000 000 000 062 |
|
|
alpha particle rms charge radius 1.6785 e-15 0.0021 e-15 m |
|
|
Angstrom star 1.000 014 95 e-10 0.000 000 90 e-10 m |
|
|
atomic mass constant 1.660 539 068 92 e-27 0.000 000 000 52 e-27 kg |
|
|
atomic mass constant energy equivalent 1.492 418 087 68 e-10 0.000 000 000 46 e-10 J |
|
|
atomic mass constant energy equivalent in MeV 931.494 103 72 0.000 000 29 MeV |
|
|
atomic mass unit-electron volt relationship 9.314 941 0372 e8 0.000 000 0029 e8 eV |
|
|
atomic mass unit-hartree relationship 3.423 177 6922 e7 0.000 000 0011 e7 E_h |
|
|
atomic mass unit-hertz relationship 2.252 342 721 85 e23 0.000 000 000 70 e23 Hz |
|
|
atomic mass unit-inverse meter relationship 7.513 006 6209 e14 0.000 000 0023 e14 m^-1 |
|
|
atomic mass unit-joule relationship 1.492 418 087 68 e-10 0.000 000 000 46 e-10 J |
|
|
atomic mass unit-kelvin relationship 1.080 954 020 67 e13 0.000 000 000 34 e13 K |
|
|
atomic mass unit-kilogram relationship 1.660 539 068 92 e-27 0.000 000 000 52 e-27 kg |
|
|
atomic unit of 1st hyperpolarizability 3.206 361 2996 e-53 0.000 000 0015 e-53 C^3 m^3 J^-2 |
|
|
atomic unit of 2nd hyperpolarizability 6.235 379 9735 e-65 0.000 000 0039 e-65 C^4 m^4 J^-3 |
|
|
atomic unit of action 1.054 571 817... e-34 (exact) J s |
|
|
atomic unit of charge 1.602 176 634 e-19 (exact) C |
|
|
atomic unit of charge density 1.081 202 386 77 e12 0.000 000 000 51 e12 C m^-3 |
|
|
atomic unit of current 6.623 618 237 5082 e-3 0.000 000 000 0072 e-3 A |
|
|
atomic unit of electric dipole mom. 8.478 353 6198 e-30 0.000 000 0013 e-30 C m |
|
|
atomic unit of electric field 5.142 206 751 12 e11 0.000 000 000 80 e11 V m^-1 |
|
|
atomic unit of electric field gradient 9.717 362 4424 e21 0.000 000 0030 e21 V m^-2 |
|
|
atomic unit of electric polarizability 1.648 777 272 12 e-41 0.000 000 000 51 e-41 C^2 m^2 J^-1 |
|
|
atomic unit of electric potential 27.211 386 245 981 0.000 000 000 030 V |
|
|
atomic unit of electric quadrupole mom. 4.486 551 5185 e-40 0.000 000 0014 e-40 C m^2 |
|
|
atomic unit of energy 4.359 744 722 2060 e-18 0.000 000 000 0048 e-18 J |
|
|
atomic unit of force 8.238 723 5038 e-8 0.000 000 0013 e-8 N |
|
|
atomic unit of length 5.291 772 105 44 e-11 0.000 000 000 82 e-11 m |
|
|
atomic unit of mag. dipole mom. 1.854 802 013 15 e-23 0.000 000 000 58 e-23 J T^-1 |
|
|
atomic unit of mag. flux density 2.350 517 570 77 e5 0.000 000 000 73 e5 T |
|
|
atomic unit of magnetizability 7.891 036 5794 e-29 0.000 000 0049 e-29 J T^-2 |
|
|
atomic unit of mass 9.109 383 7139 e-31 0.000 000 0028 e-31 kg |
|
|
atomic unit of momentum 1.992 851 915 45 e-24 0.000 000 000 31 e-24 kg m s^-1 |
|
|
atomic unit of permittivity 1.112 650 056 20 e-10 0.000 000 000 17 e-10 F m^-1 |
|
|
atomic unit of time 2.418 884 326 5864 e-17 0.000 000 000 0026 e-17 s |
|
|
atomic unit of velocity 2.187 691 262 16 e6 0.000 000 000 34 e6 m s^-1 |
|
|
Avogadro constant 6.022 140 76 e23 (exact) mol^-1 |
|
|
Bohr magneton 9.274 010 0657 e-24 0.000 000 0029 e-24 J T^-1 |
|
|
Bohr magneton in eV/T 5.788 381 7982 e-5 0.000 000 0018 e-5 eV T^-1 |
|
|
Bohr magneton in Hz/T 1.399 624 491 71 e10 0.000 000 000 44 e10 Hz T^-1 |
|
|
Bohr magneton in inverse meter per tesla 46.686 447 719 0.000 000 015 m^-1 T^-1 |
|
|
Bohr magneton in K/T 0.671 713 814 72 0.000 000 000 21 K T^-1 |
|
|
Bohr radius 5.291 772 105 44 e-11 0.000 000 000 82 e-11 m |
|
|
Boltzmann constant 1.380 649 e-23 (exact) J K^-1 |
|
|
Boltzmann constant in eV/K 8.617 333 262... e-5 (exact) eV K^-1 |
|
|
Boltzmann constant in Hz/K 2.083 661 912... e10 (exact) Hz K^-1 |
|
|
Boltzmann constant in inverse meter per kelvin 69.503 480 04... (exact) m^-1 K^-1 |
|
|
characteristic impedance of vacuum 376.730 313 412 0.000 000 059 ohm |
|
|
classical electron radius 2.817 940 3205 e-15 0.000 000 0013 e-15 m |
|
|
Compton wavelength 2.426 310 235 38 e-12 0.000 000 000 76 e-12 m |
|
|
conductance quantum 7.748 091 729... e-5 (exact) S |
|
|
conventional value of ampere-90 1.000 000 088 87... (exact) A |
|
|
conventional value of coulomb-90 1.000 000 088 87... (exact) C |
|
|
conventional value of farad-90 0.999 999 982 20... (exact) F |
|
|
conventional value of henry-90 1.000 000 017 79... (exact) H |
|
|
conventional value of Josephson constant 483 597.9 e9 (exact) Hz V^-1 |
|
|
conventional value of ohm-90 1.000 000 017 79... (exact) ohm |
|
|
conventional value of volt-90 1.000 000 106 66... (exact) V |
|
|
conventional value of von Klitzing constant 25 812.807 (exact) ohm |
|
|
conventional value of watt-90 1.000 000 195 53... (exact) W |
|
|
Copper x unit 1.002 076 97 e-13 0.000 000 28 e-13 m |
|
|
deuteron-electron mag. mom. ratio -4.664 345 550 e-4 0.000 000 012 e-4 |
|
|
deuteron-electron mass ratio 3670.482 967 655 0.000 000 063 |
|
|
deuteron g factor 0.857 438 2335 0.000 000 0022 |
|
|
deuteron mag. mom. 4.330 735 087 e-27 0.000 000 011 e-27 J T^-1 |
|
|
deuteron mag. mom. to Bohr magneton ratio 4.669 754 568 e-4 0.000 000 012 e-4 |
|
|
deuteron mag. mom. to nuclear magneton ratio 0.857 438 2335 0.000 000 0022 |
|
|
deuteron mass 3.343 583 7768 e-27 0.000 000 0010 e-27 kg |
|
|
deuteron mass energy equivalent 3.005 063 234 91 e-10 0.000 000 000 94 e-10 J |
|
|
deuteron mass energy equivalent in MeV 1875.612 945 00 0.000 000 58 MeV |
|
|
deuteron mass in u 2.013 553 212 544 0.000 000 000 015 u |
|
|
deuteron molar mass 2.013 553 214 66 e-3 0.000 000 000 63 e-3 kg mol^-1 |
|
|
deuteron-neutron mag. mom. ratio -0.448 206 52 0.000 000 11 |
|
|
deuteron-proton mag. mom. ratio 0.307 012 209 30 0.000 000 000 79 |
|
|
deuteron-proton mass ratio 1.999 007 501 2699 0.000 000 000 0084 |
|
|
deuteron relative atomic mass 2.013 553 212 544 0.000 000 000 015 |
|
|
deuteron rms charge radius 2.127 78 e-15 0.000 27 e-15 m |
|
|
electron charge to mass quotient -1.758 820 008 38 e11 0.000 000 000 55 e11 C kg^-1 |
|
|
electron-deuteron mag. mom. ratio -2143.923 4921 0.000 0056 |
|
|
electron-deuteron mass ratio 2.724 437 107 629 e-4 0.000 000 000 047 e-4 |
|
|
electron g factor -2.002 319 304 360 92 0.000 000 000 000 36 |
|
|
electron gyromag. ratio 1.760 859 627 84 e11 0.000 000 000 55 e11 s^-1 T^-1 |
|
|
electron gyromag. ratio in MHz/T 28 024.951 3861 0.000 0087 MHz T^-1 |
|
|
electron-helion mass ratio 1.819 543 074 649 e-4 0.000 000 000 053 e-4 |
|
|
electron mag. mom. -9.284 764 6917 e-24 0.000 000 0029 e-24 J T^-1 |
|
|
electron mag. mom. anomaly 1.159 652 180 46 e-3 0.000 000 000 18 e-3 |
|
|
electron mag. mom. to Bohr magneton ratio -1.001 159 652 180 46 0.000 000 000 000 18 |
|
|
electron mag. mom. to nuclear magneton ratio -1838.281 971 877 0.000 000 032 |
|
|
electron mass 9.109 383 7139 e-31 0.000 000 0028 e-31 kg |
|
|
electron mass energy equivalent 8.187 105 7880 e-14 0.000 000 0026 e-14 J |
|
|
electron mass energy equivalent in MeV 0.510 998 950 69 0.000 000 000 16 MeV |
|
|
electron mass in u 5.485 799 090 441 e-4 0.000 000 000 097 e-4 u |
|
|
electron molar mass 5.485 799 0962 e-7 0.000 000 0017 e-7 kg mol^-1 |
|
|
electron-muon mag. mom. ratio 206.766 9881 0.000 0046 |
|
|
electron-muon mass ratio 4.836 331 70 e-3 0.000 000 11 e-3 |
|
|
electron-neutron mag. mom. ratio 960.920 48 0.000 23 |
|
|
electron-neutron mass ratio 5.438 673 4416 e-4 0.000 000 0022 e-4 |
|
|
electron-proton mag. mom. ratio -658.210 687 89 0.000 000 19 |
|
|
electron-proton mass ratio 5.446 170 214 889 e-4 0.000 000 000 094 e-4 |
|
|
electron relative atomic mass 5.485 799 090 441 e-4 0.000 000 000 097 e-4 |
|
|
electron-tau mass ratio 2.875 85 e-4 0.000 19 e-4 |
|
|
electron to alpha particle mass ratio 1.370 933 554 733 e-4 0.000 000 000 032 e-4 |
|
|
electron to shielded helion mag. mom. ratio 864.058 239 86 0.000 000 70 |
|
|
electron to shielded proton mag. mom. ratio -658.227 5856 0.000 0027 |
|
|
electron-triton mass ratio 1.819 200 062 327 e-4 0.000 000 000 068 e-4 |
|
|
electron volt 1.602 176 634 e-19 (exact) J |
|
|
electron volt-atomic mass unit relationship 1.073 544 100 83 e-9 0.000 000 000 33 e-9 u |
|
|
electron volt-hartree relationship 3.674 932 217 5665 e-2 0.000 000 000 0040 e-2 E_h |
|
|
electron volt-hertz relationship 2.417 989 242... e14 (exact) Hz |
|
|
electron volt-inverse meter relationship 8.065 543 937... e5 (exact) m^-1 |
|
|
electron volt-joule relationship 1.602 176 634 e-19 (exact) J |
|
|
electron volt-kelvin relationship 1.160 451 812... e4 (exact) K |
|
|
electron volt-kilogram relationship 1.782 661 921... e-36 (exact) kg |
|
|
elementary charge 1.602 176 634 e-19 (exact) C |
|
|
elementary charge over h-bar 1.519 267 447... e15 (exact) A J^-1 |
|
|
Faraday constant 96 485.332 12... (exact) C mol^-1 |
|
|
Fermi coupling constant 1.166 3787 e-5 0.000 0006 e-5 GeV^-2 |
|
|
fine-structure constant 7.297 352 5643 e-3 0.000 000 0011 e-3 |
|
|
first radiation constant 3.741 771 852... e-16 (exact) W m^2 |
|
|
first radiation constant for spectral radiance 1.191 042 972... e-16 (exact) W m^2 sr^-1 |
|
|
hartree-atomic mass unit relationship 2.921 262 317 97 e-8 0.000 000 000 91 e-8 u |
|
|
hartree-electron volt relationship 27.211 386 245 981 0.000 000 000 030 eV |
|
|
Hartree energy 4.359 744 722 2060 e-18 0.000 000 000 0048 e-18 J |
|
|
Hartree energy in eV 27.211 386 245 981 0.000 000 000 030 eV |
|
|
hartree-hertz relationship 6.579 683 920 4999 e15 0.000 000 000 0072 e15 Hz |
|
|
hartree-inverse meter relationship 2.194 746 313 6314 e7 0.000 000 000 0024 e7 m^-1 |
|
|
hartree-joule relationship 4.359 744 722 2060 e-18 0.000 000 000 0048 e-18 J |
|
|
hartree-kelvin relationship 3.157 750 248 0398 e5 0.000 000 000 0034 e5 K |
|
|
hartree-kilogram relationship 4.850 870 209 5419 e-35 0.000 000 000 0053 e-35 kg |
|
|
helion-electron mass ratio 5495.885 279 84 0.000 000 16 |
|
|
helion g factor -4.255 250 6995 0.000 000 0034 |
|
|
helion mag. mom. -1.074 617 551 98 e-26 0.000 000 000 93 e-26 J T^-1 |
|
|
helion mag. mom. to Bohr magneton ratio -1.158 740 980 83 e-3 0.000 000 000 94 e-3 |
|
|
helion mag. mom. to nuclear magneton ratio -2.127 625 3498 0.000 000 0017 |
|
|
helion mass 5.006 412 7862 e-27 0.000 000 0016 e-27 kg |
|
|
helion mass energy equivalent 4.499 539 4185 e-10 0.000 000 0014 e-10 J |
|
|
helion mass energy equivalent in MeV 2808.391 611 12 0.000 000 88 MeV |
|
|
helion mass in u 3.014 932 246 932 0.000 000 000 074 u |
|
|
helion molar mass 3.014 932 250 10 e-3 0.000 000 000 94 e-3 kg mol^-1 |
|
|
helion-proton mass ratio 2.993 152 671 552 0.000 000 000 070 |
|
|
helion relative atomic mass 3.014 932 246 932 0.000 000 000 074 |
|
|
helion shielding shift 5.996 7029 e-5 0.000 0023 e-5 |
|
|
hertz-atomic mass unit relationship 4.439 821 6590 e-24 0.000 000 0014 e-24 u |
|
|
hertz-electron volt relationship 4.135 667 696... e-15 (exact) eV |
|
|
hertz-hartree relationship 1.519 829 846 0574 e-16 0.000 000 000 0017 e-16 E_h |
|
|
hertz-inverse meter relationship 3.335 640 951... e-9 (exact) m^-1 |
|
|
hertz-joule relationship 6.626 070 15 e-34 (exact) J |
|
|
hertz-kelvin relationship 4.799 243 073... e-11 (exact) K |
|
|
hertz-kilogram relationship 7.372 497 323... e-51 (exact) kg |
|
|
hyperfine transition frequency of Cs-133 9 192 631 770 (exact) Hz |
|
|
inverse fine-structure constant 137.035 999 177 0.000 000 021 |
|
|
inverse meter-atomic mass unit relationship 1.331 025 048 24 e-15 0.000 000 000 41 e-15 u |
|
|
inverse meter-electron volt relationship 1.239 841 984... e-6 (exact) eV |
|
|
inverse meter-hartree relationship 4.556 335 252 9132 e-8 0.000 000 000 0050 e-8 E_h |
|
|
inverse meter-hertz relationship 299 792 458 (exact) Hz |
|
|
inverse meter-joule relationship 1.986 445 857... e-25 (exact) J |
|
|
inverse meter-kelvin relationship 1.438 776 877... e-2 (exact) K |
|
|
inverse meter-kilogram relationship 2.210 219 094... e-42 (exact) kg |
|
|
inverse of conductance quantum 12 906.403 72... (exact) ohm |
|
|
Josephson constant 483 597.848 4... e9 (exact) Hz V^-1 |
|
|
joule-atomic mass unit relationship 6.700 535 2471 e9 0.000 000 0021 e9 u |
|
|
joule-electron volt relationship 6.241 509 074... e18 (exact) eV |
|
|
joule-hartree relationship 2.293 712 278 3969 e17 0.000 000 000 0025 e17 E_h |
|
|
joule-hertz relationship 1.509 190 179... e33 (exact) Hz |
|
|
joule-inverse meter relationship 5.034 116 567... e24 (exact) m^-1 |
|
|
joule-kelvin relationship 7.242 970 516... e22 (exact) K |
|
|
joule-kilogram relationship 1.112 650 056... e-17 (exact) kg |
|
|
kelvin-atomic mass unit relationship 9.251 087 2884 e-14 0.000 000 0029 e-14 u |
|
|
kelvin-electron volt relationship 8.617 333 262... e-5 (exact) eV |
|
|
kelvin-hartree relationship 3.166 811 563 4564 e-6 0.000 000 000 0035 e-6 E_h |
|
|
kelvin-hertz relationship 2.083 661 912... e10 (exact) Hz |
|
|
kelvin-inverse meter relationship 69.503 480 04... (exact) m^-1 |
|
|
kelvin-joule relationship 1.380 649 e-23 (exact) J |
|
|
kelvin-kilogram relationship 1.536 179 187... e-40 (exact) kg |
|
|
kilogram-atomic mass unit relationship 6.022 140 7537 e26 0.000 000 0019 e26 u |
|
|
kilogram-electron volt relationship 5.609 588 603... e35 (exact) eV |
|
|
kilogram-hartree relationship 2.061 485 788 7415 e34 0.000 000 000 0022 e34 E_h |
|
|
kilogram-hertz relationship 1.356 392 489... e50 (exact) Hz |
|
|
kilogram-inverse meter relationship 4.524 438 335... e41 (exact) m^-1 |
|
|
kilogram-joule relationship 8.987 551 787... e16 (exact) J |
|
|
kilogram-kelvin relationship 6.509 657 260... e39 (exact) K |
|
|
lattice parameter of silicon 5.431 020 511 e-10 0.000 000 089 e-10 m |
|
|
lattice spacing of ideal Si (220) 1.920 155 716 e-10 0.000 000 032 e-10 m |
|
|
Loschmidt constant (273.15 K, 100 kPa) 2.651 645 804... e25 (exact) m^-3 |
|
|
Loschmidt constant (273.15 K, 101.325 kPa) 2.686 780 111... e25 (exact) m^-3 |
|
|
luminous efficacy 683 (exact) lm W^-1 |
|
|
mag. flux quantum 2.067 833 848... e-15 (exact) Wb |
|
|
molar gas constant 8.314 462 618... (exact) J mol^-1 K^-1 |
|
|
molar mass constant 1.000 000 001 05 e-3 0.000 000 000 31 e-3 kg mol^-1 |
|
|
molar mass of carbon-12 12.000 000 0126 e-3 0.000 000 0037 e-3 kg mol^-1 |
|
|
molar Planck constant 3.990 312 712... e-10 (exact) J Hz^-1 mol^-1 |
|
|
molar volume of ideal gas (273.15 K, 100 kPa) 22.710 954 64... e-3 (exact) m^3 mol^-1 |
|
|
molar volume of ideal gas (273.15 K, 101.325 kPa) 22.413 969 54... e-3 (exact) m^3 mol^-1 |
|
|
molar volume of silicon 1.205 883 199 e-5 0.000 000 060 e-5 m^3 mol^-1 |
|
|
Molybdenum x unit 1.002 099 52 e-13 0.000 000 53 e-13 m |
|
|
muon Compton wavelength 1.173 444 110 e-14 0.000 000 026 e-14 m |
|
|
muon-electron mass ratio 206.768 2827 0.000 0046 |
|
|
muon g factor -2.002 331 841 23 0.000 000 000 82 |
|
|
muon mag. mom. -4.490 448 30 e-26 0.000 000 10 e-26 J T^-1 |
|
|
muon mag. mom. anomaly 1.165 920 62 e-3 0.000 000 41 e-3 |
|
|
muon mag. mom. to Bohr magneton ratio -4.841 970 48 e-3 0.000 000 11 e-3 |
|
|
muon mag. mom. to nuclear magneton ratio -8.890 597 04 0.000 000 20 |
|
|
muon mass 1.883 531 627 e-28 0.000 000 042 e-28 kg |
|
|
muon mass energy equivalent 1.692 833 804 e-11 0.000 000 038 e-11 J |
|
|
muon mass energy equivalent in MeV 105.658 3755 0.000 0023 MeV |
|
|
muon mass in u 0.113 428 9257 0.000 000 0025 u |
|
|
muon molar mass 1.134 289 258 e-4 0.000 000 025 e-4 kg mol^-1 |
|
|
muon-neutron mass ratio 0.112 454 5168 0.000 000 0025 |
|
|
muon-proton mag. mom. ratio -3.183 345 146 0.000 000 071 |
|
|
muon-proton mass ratio 0.112 609 5262 0.000 000 0025 |
|
|
muon-tau mass ratio 5.946 35 e-2 0.000 40 e-2 |
|
|
natural unit of action 1.054 571 817... e-34 (exact) J s |
|
|
natural unit of action in eV s 6.582 119 569... e-16 (exact) eV s |
|
|
natural unit of energy 8.187 105 7880 e-14 0.000 000 0026 e-14 J |
|
|
natural unit of energy in MeV 0.510 998 950 69 0.000 000 000 16 MeV |
|
|
natural unit of length 3.861 592 6744 e-13 0.000 000 0012 e-13 m |
|
|
natural unit of mass 9.109 383 7139 e-31 0.000 000 0028 e-31 kg |
|
|
natural unit of momentum 2.730 924 534 46 e-22 0.000 000 000 85 e-22 kg m s^-1 |
|
|
natural unit of momentum in MeV/c 0.510 998 950 69 0.000 000 000 16 MeV/c |
|
|
natural unit of time 1.288 088 666 44 e-21 0.000 000 000 40 e-21 s |
|
|
natural unit of velocity 299 792 458 (exact) m s^-1 |
|
|
neutron Compton wavelength 1.319 590 903 82 e-15 0.000 000 000 67 e-15 m |
|
|
neutron-electron mag. mom. ratio 1.040 668 84 e-3 0.000 000 24 e-3 |
|
|
neutron-electron mass ratio 1838.683 662 00 0.000 000 74 |
|
|
neutron g factor -3.826 085 52 0.000 000 90 |
|
|
neutron gyromag. ratio 1.832 471 74 e8 0.000 000 43 e8 s^-1 T^-1 |
|
|
neutron gyromag. ratio in MHz/T 29.164 6935 0.000 0069 MHz T^-1 |
|
|
neutron mag. mom. -9.662 3653 e-27 0.000 0023 e-27 J T^-1 |
|
|
neutron mag. mom. to Bohr magneton ratio -1.041 875 65 e-3 0.000 000 25 e-3 |
|
|
neutron mag. mom. to nuclear magneton ratio -1.913 042 76 0.000 000 45 |
|
|
neutron mass 1.674 927 500 56 e-27 0.000 000 000 85 e-27 kg |
|
|
neutron mass energy equivalent 1.505 349 765 14 e-10 0.000 000 000 76 e-10 J |
|
|
neutron mass energy equivalent in MeV 939.565 421 94 0.000 000 48 MeV |
|
|
neutron mass in u 1.008 664 916 06 0.000 000 000 40 u |
|
|
neutron molar mass 1.008 664 917 12 e-3 0.000 000 000 51 e-3 kg mol^-1 |
|
|
neutron-muon mass ratio 8.892 484 08 0.000 000 20 |
|
|
neutron-proton mag. mom. ratio -0.684 979 35 0.000 000 16 |
|
|
neutron-proton mass difference 2.305 574 61 e-30 0.000 000 67 e-30 kg |
|
|
neutron-proton mass difference energy equivalent 2.072 147 12 e-13 0.000 000 60 e-13 J |
|
|
neutron-proton mass difference energy equivalent in MeV 1.293 332 51 0.000 000 38 MeV |
|
|
neutron-proton mass difference in u 1.388 449 48 e-3 0.000 000 40 e-3 u |
|
|
neutron-proton mass ratio 1.001 378 419 46 0.000 000 000 40 |
|
|
neutron relative atomic mass 1.008 664 916 06 0.000 000 000 40 |
|
|
neutron-tau mass ratio 0.528 779 0.000 036 |
|
|
neutron to shielded proton mag. mom. ratio -0.684 996 94 0.000 000 16 |
|
|
Newtonian constant of gravitation 6.674 30 e-11 0.000 15 e-11 m^3 kg^-1 s^-2 |
|
|
Newtonian constant of gravitation over h-bar c 6.708 83 e-39 0.000 15 e-39 (GeV/c^2)^-2 |
|
|
nuclear magneton 5.050 783 7393 e-27 0.000 000 0016 e-27 J T^-1 |
|
|
nuclear magneton in eV/T 3.152 451 254 17 e-8 0.000 000 000 98 e-8 eV T^-1 |
|
|
nuclear magneton in inverse meter per tesla 2.542 623 410 09 e-2 0.000 000 000 79 e-2 m^-1 T^-1 |
|
|
nuclear magneton in K/T 3.658 267 7706 e-4 0.000 000 0011 e-4 K T^-1 |
|
|
nuclear magneton in MHz/T 7.622 593 2188 0.000 000 0024 MHz T^-1 |
|
|
Planck constant 6.626 070 15 e-34 (exact) J Hz^-1 |
|
|
Planck constant in eV/Hz 4.135 667 696... e-15 (exact) eV Hz^-1 |
|
|
Planck length 1.616 255 e-35 0.000 018 e-35 m |
|
|
Planck mass 2.176 434 e-8 0.000 024 e-8 kg |
|
|
Planck mass energy equivalent in GeV 1.220 890 e19 0.000 014 e19 GeV |
|
|
Planck temperature 1.416 784 e32 0.000 016 e32 K |
|
|
Planck time 5.391 247 e-44 0.000 060 e-44 s |
|
|
proton charge to mass quotient 9.578 833 1430 e7 0.000 000 0030 e7 C kg^-1 |
|
|
proton Compton wavelength 1.321 409 853 60 e-15 0.000 000 000 41 e-15 m |
|
|
proton-electron mass ratio 1836.152 673 426 0.000 000 032 |
|
|
proton g factor 5.585 694 6893 0.000 000 0016 |
|
|
proton gyromag. ratio 2.675 221 8708 e8 0.000 000 0011 e8 s^-1 T^-1 |
|
|
proton gyromag. ratio in MHz/T 42.577 478 461 0.000 000 018 MHz T^-1 |
|
|
proton mag. mom. 1.410 606 795 45 e-26 0.000 000 000 60 e-26 J T^-1 |
|
|
proton mag. mom. to Bohr magneton ratio 1.521 032 202 30 e-3 0.000 000 000 45 e-3 |
|
|
proton mag. mom. to nuclear magneton ratio 2.792 847 344 63 0.000 000 000 82 |
|
|
proton mag. shielding correction 2.567 15 e-5 0.000 41 e-5 |
|
|
proton mass 1.672 621 925 95 e-27 0.000 000 000 52 e-27 kg |
|
|
proton mass energy equivalent 1.503 277 618 02 e-10 0.000 000 000 47 e-10 J |
|
|
proton mass energy equivalent in MeV 938.272 089 43 0.000 000 29 MeV |
|
|
proton mass in u 1.007 276 466 5789 0.000 000 000 0083 u |
|
|
proton molar mass 1.007 276 467 64 e-3 0.000 000 000 31 e-3 kg mol^-1 |
|
|
proton-muon mass ratio 8.880 243 38 0.000 000 20 |
|
|
proton-neutron mag. mom. ratio -1.459 898 02 0.000 000 34 |
|
|
proton-neutron mass ratio 0.998 623 477 97 0.000 000 000 40 |
|
|
proton relative atomic mass 1.007 276 466 5789 0.000 000 000 0083 |
|
|
proton rms charge radius 8.4075 e-16 0.0064 e-16 m |
|
|
proton-tau mass ratio 0.528 051 0.000 036 |
|
|
quantum of circulation 3.636 947 5467 e-4 0.000 000 0011 e-4 m^2 s^-1 |
|
|
quantum of circulation times 2 7.273 895 0934 e-4 0.000 000 0023 e-4 m^2 s^-1 |
|
|
reduced Compton wavelength 3.861 592 6744 e-13 0.000 000 0012 e-13 m |
|
|
reduced muon Compton wavelength 1.867 594 306 e-15 0.000 000 042 e-15 m |
|
|
reduced neutron Compton wavelength 2.100 194 1520 e-16 0.000 000 0011 e-16 m |
|
|
reduced Planck constant 1.054 571 817... e-34 (exact) J s |
|
|
reduced Planck constant in eV s 6.582 119 569... e-16 (exact) eV s |
|
|
reduced Planck constant times c in MeV fm 197.326 980 4... (exact) MeV fm |
|
|
reduced proton Compton wavelength 2.103 089 100 51 e-16 0.000 000 000 66 e-16 m |
|
|
reduced tau Compton wavelength 1.110 538 e-16 0.000 075 e-16 m |
|
|
Rydberg constant 10 973 731.568 157 0.000 012 m^-1 |
|
|
Rydberg constant times c in Hz 3.289 841 960 2500 e15 0.000 000 000 0036 e15 Hz |
|
|
Rydberg constant times hc in eV 13.605 693 122 990 0.000 000 000 015 eV |
|
|
Rydberg constant times hc in J 2.179 872 361 1030 e-18 0.000 000 000 0024 e-18 J |
|
|
Sackur-Tetrode constant (1 K, 100 kPa) -1.151 707 534 96 0.000 000 000 47 |
|
|
Sackur-Tetrode constant (1 K, 101.325 kPa) -1.164 870 521 49 0.000 000 000 47 |
|
|
second radiation constant 1.438 776 877... e-2 (exact) m K |
|
|
shielded helion gyromag. ratio 2.037 894 6078 e8 0.000 000 0018 e8 s^-1 T^-1 |
|
|
shielded helion gyromag. ratio in MHz/T 32.434 100 033 0.000 000 028 MHz T^-1 |
|
|
shielded helion mag. mom. -1.074 553 110 35 e-26 0.000 000 000 93 e-26 J T^-1 |
|
|
shielded helion mag. mom. to Bohr magneton ratio -1.158 671 494 57 e-3 0.000 000 000 94 e-3 |
|
|
shielded helion mag. mom. to nuclear magneton ratio -2.127 497 7624 0.000 000 0017 |
|
|
shielded helion to proton mag. mom. ratio -0.761 766 577 21 0.000 000 000 66 |
|
|
shielded helion to shielded proton mag. mom. ratio -0.761 786 1334 0.000 000 0031 |
|
|
shielded proton gyromag. ratio 2.675 153 194 e8 0.000 000 011 e8 s^-1 T^-1 |
|
|
shielded proton gyromag. ratio in MHz/T 42.576 385 43 0.000 000 17 MHz T^-1 |
|
|
shielded proton mag. mom. 1.410 570 5830 e-26 0.000 000 0058 e-26 J T^-1 |
|
|
shielded proton mag. mom. to Bohr magneton ratio 1.520 993 1551 e-3 0.000 000 0062 e-3 |
|
|
shielded proton mag. mom. to nuclear magneton ratio 2.792 775 648 0.000 000 011 |
|
|
shielding difference of d and p in HD 1.987 70 e-8 0.000 10 e-8 |
|
|
shielding difference of t and p in HT 2.394 50 e-8 0.000 20 e-8 |
|
|
speed of light in vacuum 299 792 458 (exact) m s^-1 |
|
|
standard acceleration of gravity 9.806 65 (exact) m s^-2 |
|
|
standard atmosphere 101 325 (exact) Pa |
|
|
standard-state pressure 100 000 (exact) Pa |
|
|
Stefan-Boltzmann constant 5.670 374 419... e-8 (exact) W m^-2 K^-4 |
|
|
tau Compton wavelength 6.977 71 e-16 0.000 47 e-16 m |
|
|
tau-electron mass ratio 3477.23 0.23 |
|
|
tau energy equivalent 1776.86 0.12 MeV |
|
|
tau mass 3.167 54 e-27 0.000 21 e-27 kg |
|
|
tau mass energy equivalent 2.846 84 e-10 0.000 19 e-10 J |
|
|
tau mass in u 1.907 54 0.000 13 u |
|
|
tau molar mass 1.907 54 e-3 0.000 13 e-3 kg mol^-1 |
|
|
tau-muon mass ratio 16.8170 0.0011 |
|
|
tau-neutron mass ratio 1.891 15 0.000 13 |
|
|
tau-proton mass ratio 1.893 76 0.000 13 |
|
|
Thomson cross section 6.652 458 7051 e-29 0.000 000 0062 e-29 m^2 |
|
|
triton-electron mass ratio 5496.921 535 51 0.000 000 21 |
|
|
triton g factor 5.957 924 930 0.000 000 012 |
|
|
triton mag. mom. 1.504 609 5178 e-26 0.000 000 0030 e-26 J T^-1 |
|
|
triton mag. mom. to Bohr magneton ratio 1.622 393 6648 e-3 0.000 000 0032 e-3 |
|
|
triton mag. mom. to nuclear magneton ratio 2.978 962 4650 0.000 000 0059 |
|
|
triton mass 5.007 356 7512 e-27 0.000 000 0016 e-27 kg |
|
|
triton mass energy equivalent 4.500 387 8119 e-10 0.000 000 0014 e-10 J |
|
|
triton mass energy equivalent in MeV 2808.921 136 68 0.000 000 88 MeV |
|
|
triton mass in u 3.015 500 715 97 0.000 000 000 10 u |
|
|
triton molar mass 3.015 500 719 13 e-3 0.000 000 000 94 e-3 kg mol^-1 |
|
|
triton-proton mass ratio 2.993 717 034 03 0.000 000 000 10 |
|
|
triton relative atomic mass 3.015 500 715 97 0.000 000 000 10 |
|
|
triton to proton mag. mom. ratio 1.066 639 9189 0.000 000 0021 |
|
|
unified atomic mass unit 1.660 539 068 92 e-27 0.000 000 000 52 e-27 kg |
|
|
vacuum electric permittivity 8.854 187 8188 e-12 0.000 000 0014 e-12 F m^-1 |
|
|
vacuum mag. permeability 1.256 637 061 27 e-6 0.000 000 000 20 e-6 N A^-2 |
|
|
von Klitzing constant 25 812.807 45... (exact) ohm |
|
|
weak mixing angle 0.223 05 0.000 23 |
|
|
Wien frequency displacement law constant 5.878 925 757... e10 (exact) Hz K^-1 |
|
|
Wien wavelength displacement law constant 2.897 771 955... e-3 (exact) m K |
|
|
W to Z mass ratio 0.881 45 0.000 13 """ |
|
|
|
|
|
|
|
|
exact2022 = exact2018 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def parse_constants_2002to2014( |
|
|
d: str, exact_func: Callable[[Any], Any] |
|
|
) -> dict[str, tuple[float, str, float]]: |
|
|
constants: dict[str, tuple[float, str, float]] = {} |
|
|
exact: dict[str, float] = {} |
|
|
need_replace = set() |
|
|
for line in d.split('\n'): |
|
|
name = line[:55].rstrip() |
|
|
val = float(line[55:77].replace(' ', '').replace('...', '')) |
|
|
is_truncated = '...' in line[55:77] |
|
|
is_exact = '(exact)' in line[77:99] |
|
|
if is_truncated and is_exact: |
|
|
|
|
|
need_replace.add(name) |
|
|
elif is_exact: |
|
|
exact[name] = val |
|
|
else: |
|
|
assert not is_truncated |
|
|
uncert = float(line[77:99].replace(' ', '').replace('(exact)', '0')) |
|
|
units = line[99:].rstrip() |
|
|
constants[name] = (val, units, uncert) |
|
|
replace = exact_func(exact) |
|
|
replace_exact(constants, need_replace, replace) |
|
|
return constants |
|
|
|
|
|
|
|
|
def parse_constants_2018toXXXX( |
|
|
d: str, exact_func: Callable[[Any], Any] |
|
|
) -> dict[str, tuple[float, str, float]]: |
|
|
constants: dict[str, tuple[float, str, float]] = {} |
|
|
exact: dict[str, float] = {} |
|
|
need_replace = set() |
|
|
for line in d.split('\n'): |
|
|
name = line[:60].rstrip() |
|
|
val = float(line[60:85].replace(' ', '').replace('...', '')) |
|
|
is_truncated = '...' in line[60:85] |
|
|
is_exact = '(exact)' in line[85:110] |
|
|
if is_truncated and is_exact: |
|
|
|
|
|
need_replace.add(name) |
|
|
elif is_exact: |
|
|
exact[name] = val |
|
|
else: |
|
|
assert not is_truncated |
|
|
uncert = float(line[85:110].replace(' ', '').replace('(exact)', '0')) |
|
|
units = line[110:].rstrip() |
|
|
constants[name] = (val, units, uncert) |
|
|
replace = exact_func(exact) |
|
|
replace_exact(constants, need_replace, replace) |
|
|
return constants |
|
|
|
|
|
|
|
|
def replace_exact(d, to_replace, exact): |
|
|
for name in to_replace: |
|
|
assert name in exact, f'Missing exact value: {name}' |
|
|
assert abs(exact[name]/d[name][0] - 1) <= 1e-9, \ |
|
|
f'Bad exact value: {name}: { exact[name]}, {d[name][0]}' |
|
|
d[name] = (exact[name],) + d[name][1:] |
|
|
assert set(exact.keys()) == set(to_replace) |
|
|
|
|
|
|
|
|
_physical_constants_2002 = parse_constants_2002to2014(txt2002, exact2002) |
|
|
_physical_constants_2006 = parse_constants_2002to2014(txt2006, exact2006) |
|
|
_physical_constants_2010 = parse_constants_2002to2014(txt2010, exact2010) |
|
|
_physical_constants_2014 = parse_constants_2002to2014(txt2014, exact2014) |
|
|
_physical_constants_2018 = parse_constants_2018toXXXX(txt2018, exact2018) |
|
|
_physical_constants_2022 = parse_constants_2018toXXXX(txt2022, exact2022) |
|
|
|
|
|
physical_constants: dict[str, tuple[float, str, float]] = {} |
|
|
physical_constants.update(_physical_constants_2002) |
|
|
physical_constants.update(_physical_constants_2006) |
|
|
physical_constants.update(_physical_constants_2010) |
|
|
physical_constants.update(_physical_constants_2014) |
|
|
physical_constants.update(_physical_constants_2018) |
|
|
physical_constants.update(_physical_constants_2022) |
|
|
_current_constants = _physical_constants_2022 |
|
|
_current_codata = "CODATA 2022" |
|
|
|
|
|
|
|
|
_obsolete_constants = {} |
|
|
for k in physical_constants: |
|
|
if k not in _current_constants: |
|
|
_obsolete_constants[k] = True |
|
|
|
|
|
|
|
|
_aliases = {} |
|
|
for k in _physical_constants_2002: |
|
|
if 'magn.' in k: |
|
|
_aliases[k] = k.replace('magn.', 'mag.') |
|
|
for k in _physical_constants_2006: |
|
|
if 'momentum' in k: |
|
|
_aliases[k] = k.replace('momentum', 'mom.um') |
|
|
for k in _physical_constants_2018: |
|
|
if 'momentum' in k: |
|
|
_aliases[k] = k.replace('momentum', 'mom.um') |
|
|
for k in _physical_constants_2022: |
|
|
if 'momentum' in k: |
|
|
_aliases[k] = k.replace('momentum', 'mom.um') |
|
|
|
|
|
|
|
|
_aliases['mag. constant'] = 'vacuum mag. permeability' |
|
|
_aliases['electric constant'] = 'vacuum electric permittivity' |
|
|
|
|
|
|
|
|
_extra_alias_keys = ['natural unit of velocity', |
|
|
'natural unit of action', |
|
|
'natural unit of action in eV s', |
|
|
'natural unit of mass', |
|
|
'natural unit of energy', |
|
|
'natural unit of energy in MeV', |
|
|
'natural unit of mom.um', |
|
|
'natural unit of mom.um in MeV/c', |
|
|
'natural unit of length', |
|
|
'natural unit of time'] |
|
|
|
|
|
|
|
|
for k, v in list(_aliases.items()): |
|
|
if v in _current_constants or v in _extra_alias_keys: |
|
|
physical_constants[k] = physical_constants[v] |
|
|
else: |
|
|
del _aliases[k] |
|
|
|
|
|
|
|
|
class ConstantWarning(DeprecationWarning): |
|
|
"""Accessing a constant no longer in current CODATA data set""" |
|
|
pass |
|
|
|
|
|
|
|
|
def _check_obsolete(key: str) -> None: |
|
|
if key in _obsolete_constants and key not in _aliases: |
|
|
warnings.warn(f"Constant '{key}' is not in current {_current_codata} data set", |
|
|
ConstantWarning, stacklevel=3) |
|
|
|
|
|
|
|
|
def value(key: str) -> float: |
|
|
""" |
|
|
Value in physical_constants indexed by key |
|
|
|
|
|
Parameters |
|
|
---------- |
|
|
key : Python string |
|
|
Key in dictionary `physical_constants` |
|
|
|
|
|
Returns |
|
|
------- |
|
|
value : float |
|
|
Value in `physical_constants` corresponding to `key` |
|
|
|
|
|
Examples |
|
|
-------- |
|
|
>>> from scipy import constants |
|
|
>>> constants.value('elementary charge') |
|
|
1.602176634e-19 |
|
|
|
|
|
""" |
|
|
_check_obsolete(key) |
|
|
return physical_constants[key][0] |
|
|
|
|
|
|
|
|
def unit(key: str) -> str: |
|
|
""" |
|
|
Unit in physical_constants indexed by key |
|
|
|
|
|
Parameters |
|
|
---------- |
|
|
key : Python string |
|
|
Key in dictionary `physical_constants` |
|
|
|
|
|
Returns |
|
|
------- |
|
|
unit : Python string |
|
|
Unit in `physical_constants` corresponding to `key` |
|
|
|
|
|
Examples |
|
|
-------- |
|
|
>>> from scipy import constants |
|
|
>>> constants.unit('proton mass') |
|
|
'kg' |
|
|
|
|
|
""" |
|
|
_check_obsolete(key) |
|
|
return physical_constants[key][1] |
|
|
|
|
|
|
|
|
def precision(key: str) -> float: |
|
|
""" |
|
|
Relative precision in physical_constants indexed by key |
|
|
|
|
|
Parameters |
|
|
---------- |
|
|
key : Python string |
|
|
Key in dictionary `physical_constants` |
|
|
|
|
|
Returns |
|
|
------- |
|
|
prec : float |
|
|
Relative precision in `physical_constants` corresponding to `key` |
|
|
|
|
|
Examples |
|
|
-------- |
|
|
>>> from scipy import constants |
|
|
>>> constants.precision('proton mass') |
|
|
5.1e-37 |
|
|
|
|
|
""" |
|
|
_check_obsolete(key) |
|
|
return physical_constants[key][2] / physical_constants[key][0] |
|
|
|
|
|
|
|
|
def find(sub: str | None = None, disp: bool = False) -> Any: |
|
|
""" |
|
|
Return list of physical_constant keys containing a given string. |
|
|
|
|
|
Parameters |
|
|
---------- |
|
|
sub : str |
|
|
Sub-string to search keys for. By default, return all keys. |
|
|
disp : bool |
|
|
If True, print the keys that are found and return None. |
|
|
Otherwise, return the list of keys without printing anything. |
|
|
|
|
|
Returns |
|
|
------- |
|
|
keys : list or None |
|
|
If `disp` is False, the list of keys is returned. |
|
|
Otherwise, None is returned. |
|
|
|
|
|
Examples |
|
|
-------- |
|
|
>>> from scipy.constants import find, physical_constants |
|
|
|
|
|
Which keys in the ``physical_constants`` dictionary contain 'boltzmann'? |
|
|
|
|
|
>>> find('boltzmann') |
|
|
['Boltzmann constant', |
|
|
'Boltzmann constant in Hz/K', |
|
|
'Boltzmann constant in eV/K', |
|
|
'Boltzmann constant in inverse meter per kelvin', |
|
|
'Stefan-Boltzmann constant'] |
|
|
|
|
|
Get the constant called 'Boltzmann constant in Hz/K': |
|
|
|
|
|
>>> physical_constants['Boltzmann constant in Hz/K'] |
|
|
(20836619120.0, 'Hz K^-1', 0.0) |
|
|
|
|
|
Find constants with 'radius' in the key: |
|
|
|
|
|
>>> find('radius') |
|
|
['Bohr radius', |
|
|
'alpha particle rms charge radius', |
|
|
'classical electron radius', |
|
|
'deuteron rms charge radius', |
|
|
'proton rms charge radius'] |
|
|
>>> physical_constants['classical electron radius'] |
|
|
(2.8179403262e-15, 'm', 1.3e-24) |
|
|
|
|
|
""" |
|
|
if sub is None: |
|
|
result = list(_current_constants.keys()) |
|
|
else: |
|
|
result = [key for key in _current_constants |
|
|
if sub.lower() in key.lower()] |
|
|
|
|
|
result.sort() |
|
|
if disp: |
|
|
for key in result: |
|
|
print(key) |
|
|
return |
|
|
else: |
|
|
return result |
|
|
|
|
|
|
|
|
|
|
|
c = value('speed of light in vacuum') |
|
|
|
