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|---|---|---|---|
bq44aa
|
Why do bugs like to buzz around people's heads, even when being constantly swatted at?
|
To answer the second half, bugs are generally not intelligent enough to recognize being swatted at is connected to what they are doing. They simply react on impulse to a swat by avoiding it best they can, then go right back to what they are doing.
So it's sort of like "Oh hey this tastes good"...."Something is coming my way I should move"...."Oh hey this tastes good".
|
bd205f27-4b5c-4410-b031-8eb513bccf04
|
bq4639
|
why do things dissolve easier into hot water rather than cold water
|
Let's put it this way:
Things are made up of tiny particles, so both your water and the stuff you want to dissolve in it is made up of tiny particles. These tiny particles attract each other and this is what makes stuff stay together.
The particles in solids are strongly attracted, so they are fixed in place. While in liquids they move about.
The particles move faster in hot liquids than in colder ones.
Now when you put something to dissolve in water, (let's say sugar in water), the particles in water hit the fixed sugar particles (a solid). This causes the sugar particles the sugar particles to dislodge and even they start moving around.
When enough of them get "dislodged" the sugar dissolves.
Now since hot water has faster moving particles than cold water, the fast particles of hot water "dislodge" the fixed sugar particles more easily from their place, so sugar dissolves in hot water faster.
(Imagine you sitting on a chair, and I punch you *ouch*, you would fall down when I punch you hard and fast, and not when I hit slow and soft).
(I might be wrong though, but this is how I imagine it to be)
|
791c834e-bfdc-4c61-a68e-92e8802a8900
|
bq5334
|
Glasses
|
Diopter is equal to one divided by the focal length in meters. So light from a distant object will be brought to a focus 1 meter away from a 1 diopter lens, 1/2 meter away from a 2 diopter lens, 1/3 meter from 3 diopter and so on. Diopter measurement is positive for a converging lens (for farsightedness), negative for a diverging lens (for nearsightedness).
|
a740f589-5974-4359-9724-aab269e03166
|
bq5389
|
Why do only organisms with animal cells get cancer even though plants and fungi have DNA as well?
|
Interesting question that i cant answer, but my top two picks are:
There is some type of plant cancer and we dont know about its existence and second is that there is something in their dna that is the opposite of cancer and cancer Just cant write itself in it or something
Im no biologist and those answer may seem stupid to someone but to me they sound right
|
1ad89d74-e056-4f3e-9e22-89d1ecdf7af7
|
bq5ecx
|
What are the underlying hormones/chemicals that make us progressively hornier the longer we go without an orgasm?
|
I know the answer for males. The testicles are designed to hold a certain amount of sperm. As the testicles make sperm they expand a little bit. When the testicles get too full it starts to press on something, I can't remember the name of it, but that thing sends a signal to your brain saying it wants to orgasm. Because orgasming releases sperm.
it's the exact same as when your bladder gets full and you feel like you have to go to the bathroom. You can hold it for a time but the longer you go the more and more urgent the need is for you to release your urine.
|
05007405-0515-482c-ab1a-3739e2519d29
|
bq5vzd
|
In the US, what’s the difference between a road, street, avenue, way, terrace, etc.?
|
First they are used to allow the use of the same name in the same city. A street, avenue, way, terrace, and lane are generally interchangeable. As they are roads that serve to start or end a ‘trip’ from a home or apartment. Sometimes Avenue will be used as a connection between these ‘end’ roadways but not meant as a primary mover of people.
Boulevard is usually meant to indicate a more significant roadway that serves a a connection between other roads. Generally its intent is not to serve homes directly but to facilitate the movement through the city. This is also true of ‘Roads’ like County Road 10. These roads usually carry the designation of ‘Class A Minor Arterial’ on the road planning maps.
Obviously the final step is to highway / freeway with the only different being the speed limit and if there are signals on the road.
TL;DR - nothing really, but they all indicate ‘small’ roads that serve homes. General flow of road size from smallest to largest would be: Street/Lane - > Avenue - > Boulevard - > County Road - > County/State Highway - > Freeway
|
0d4930e1-f076-4355-b7c8-643d06b00990
|
bq5xpx
|
What does "differences within populations are greater than differences between populations", mean?
|
To pick an example: imagine you want someone tall. Should you pick someone from the US or Canada?
Well the average height of men in the US is 5'10 and the average height of men in Canada is 5'9. So do you say "get me a US American!"
Well maybe, if that's all you have to go on. But obviously men in the US don't range from 5'9 to 5'11 and men in Canada from 5'8 to 5'10. There are tons of people in the US who are way shorter and tons in Canada who are way smaller.
So knowing if someone is from the US or Canada isn't that useful in picking someone tall. If you got a bunch of people from both countries together you'd have a lot of trouble telling them apart by height.
In other words, the differences within those populations are greater than the difference between them.
|
f9805cbd-714c-47c1-9af0-91483fb6f6e9
|
bq67hz
|
If alot of modern money is digital, whats preventing a country from just adding money to pay off debt? (Example why cant the US government just make $17Trill and pay off its debt?)
|
Runaway inflation. The more money a country makes, the less each unit of money tends to be worth. Look up 1990s-2000s Zimbabwe, present day Venezuela or 1920s Germany for examples.
|
84e440be-c4c2-44cb-9a25-eaa780f7b1de
|
bq6eit
|
Why do so many animals (including humans) enjoy music?
|
We do not know and are yet to be able to research this area as it is very complex cognitive mechanisms involved. It is thought that the brain is constantly trying to predict what is going to happen next and gets a little reward every time its predictions are correct. And music tends to be very predictable but still complex enough that it is a challenge. This explains the feeling some people get at certain places in the music where they are able to anticipate the next note and waits for it to come in right as expected and gets happy when their predictions comes in right. However the exact mechanisms are quite complex and still not understood. For example it is the opposite effect you see in a lot of comedy where the punchline is an unexpected turn instead of a predictable thing. If you are able to predict the punchline of a joke it is not a good joke but if you are able to predict the final note of a song it is a good song.
|
fdb7a581-a1fd-4293-9e1b-330f73ddf5f1
|
bq6krs
|
Does hospitals store AB+ blood?
|
They do store it. Although AB+ people can take any blood, it's still better to give them AB+ blood (and also leaves more other blood for others)
|
13c90c0a-6017-4337-8a6f-e5eb141f48df
|
bq6rr1
|
How does “zoning out” really work?
|
Not an expert in any sense, but from what I understand, it depends on what you're focusing on. Much like concentrating so hard on a certain stimulus or activity, as in when you're talking to someone while someone else asks you something without getting your attention you lose track of what was asked or what you were discussing. Equally, your mind is creating scenarios that you focus on, to the exclusion of external stimulus.
Can't find the source, but read something regarding attention as either a limited resource that your brain dishes out as it deems important or as a lens that gets fuzzier the further from centre things fall. So whatever is nearest centre gets focused on more while outlying areas are paid less attention to. There's also a YouTube video somewhere explaining the same.
|
ad3cd15a-370c-4413-816c-25fe769a94fc
|
bq7ahu
|
how do charging portals work that don’t have any actual contact between the metal in each device? How can energy be transferred through plastic cases on smart phones, the same way electronic toothbrushes just sit on a charging stand?
|
A whole lot in modern electronics won't make sense until you understand "electrical induction" and once you do the concept of wireless charging is obvious.
Electricity flowing through a conductor will create a magnetic field around it. Similarly a moving magnetic field will cause (or "induce") a current in nearby conductors. We can use this to convert between electricity and physical motion: Moving a magnet near a conductor is an electrical generator, and using a current to create a magnetic field that moves things is an electric motor.
You can also use this to bridge small gaps by connecting two circuits by the magnetic field, which is what the wireless charger does. If the number of loops in the two coils are different then it will change the electrical properties of the transferred current, something which is called an electrical "transformer".
|
42f903dd-5457-4226-be81-fd1fc20140f0
|
bq7c7j
|
Why does boiling water make eggs harder but pasta softer?
|
This happens because of the molecular structure of the egg and pasta, water is just the medium of heat transmission.
Proteins in the egg are loose, when heating they break in smaller pieces that glue themselves and becomes hard. This is why the egg whites are transparent when raw and white when cooked.
Hard pasta becomes hard after a process of dehydration. They were soft before that. When you boil it, not only the pasta reabsorbs water but also the eggs and flour cooks. You can actually see that: the pasta doubles in size and changes in color.
|
9475471d-3293-484c-94c3-a20a7a183021
|
bq7csz
|
How do chromosomes pair up correctly during reproduction?
|
The synaptonemal complex is formed, which is a protein structure, like a scaffold, which connects to every chromosome and guides each one to its counterpart. Helps to line them up properly so they can swap DNA.
|
80438165-a292-43ba-80d2-32fe09eb6134
|
bq7fch
|
How do states with no state income tax fund everything?
|
Property and sales taxes. Florida doesn't have to charge a state income tax, since they attract so many tourism dollars that help fund the govt through sales taxes.
Kansas took a hard right turn under the last governorship and tried to seriously cut taxes and spending, thinking it would boost the economy. and [it failed miserably.](_URL_0_)
|
f18a9909-13b7-4359-95f3-6bf3cba1cc38
|
bq7kx4
|
When you speed using Google Maps does it take that into account?
|
Yes and no. Your speed is accounted for when they get the average speeds along your path. They mainly get the speeds of other mobile devices on your route to get an ETA. When data is insufficient, they’ll use posted speed limit data to factor into your ETA.
|
6b564884-7b86-40e3-8bf4-6f1b41692ff1
|
bq8fu9
|
What is the difference between "Unified field theory", "Grand Unified Theory", and the "Theory of everything"?
|
A "Theory of Everything" is one consistent mathematical description of all the laws of nature. As opposed to what we have now, where the Standard Model of particle physics on the one hand an General Relativity on the other hand are quite distinct in their mathematical structure and thought of as incompatible with each other.
A "unified field theory" is a Theory of Everything which is a field theory, that is it describes nature as a set of interacting fields.
A "Grand Unified Theory" is much less than the other two. It only unifies the strong, weak and electromagnetic interactions as a single gauge theory with one unified coupling strength. It would not take into account gravity.
|
c308afa0-60d3-4cdc-922d-1e7dc442b2be
|
bq969d
|
What is Game Theory?
|
Game Theory has nothing to do with what you're talking about.
Rather, it's about setting up 'games' where there are specific rules and each participant has clearly defined interests - and then analyzing what the best strategies are.
The Prisoner's Dilemma is the classic example. You've got two criminals who conspired to commit a crime. The authorities are questioning them independently. If one rats out the other, the rat goes free while the other criminal gets 10 years. If neither rats the other out, they both get 2 years. If both rat each other out, they both get 5 years. (The numbers are arbitrary in the version here)
The question becomes: should the prisoners rat each other out?
Game Theory attempts to answer that question quantitatively.
|
09753d88-1837-4704-9159-2cf830be33b1
|
bq9qld
|
why are Europe and Asia considered two continents when they're one land mass?
|
Historically the divide between East and West was established by the longitudinal line of the Nile. So it’s kind of arbitrary.
|
b7daa1ae-a16f-423d-9906-d224c951c1ea
|
bq9sqv
|
Why guys with diesel pickup trucks leave them idling all the time vs. turning them off.
|
Diesel engines works best when warm and may even refuse to start in even mildly cold weather. The diesel fuel is ignited by the heat generated by compression instead of a spark. So if the engine is cold and the fuel is cold then it will take more heat to ignite it causing it to run rough. Most diesel engines will not even start in mildly cold weather and requires an electric heater to preheat the fuel to even make it start. This means that in cold weather you can not just turn the key as you would a gasoline engine but needs to set it to engine preheat for a few seconds before you can try cranking it. Diesel engines designed for cold climates may even have diesel heater units built into them so that you can heat the engine block in a few minutes to make it start. But even in warm weather the engine may run rough before it have a chance to warm up. So turning off the engine and letting it cool down is really bad for the driving experience and can even increase the fuel consumption compared to if you let the engine idle.
|
3330f52e-4a5f-4946-932b-14fa4f062e10
|
bq9z30
|
What is the unity between England, Wales, Scotland, and North Ireland?
|
I'd say it's more like the US than the EU, despite the fact they are considered countries in their own right.
In some ways it's an even closer union than the US. Unlike the states of the US they aren't guaranteed to have their own governments. In fact, them having their own governments is a fairly new thing. Scotland and Wales only got them about 20 years ago, and England still doesn't.
This is because the UK is a unitary state, not a federation. The UK Parliament is the ultimate law making body for the entire UK, and in theory can abolish or overrule any other level of government within the UK. Although in practice doing so without a good reason would have huge political consequences.
In many respects it's a lot like a single country. There is a shared British citizenship for the entire UK. Although Northern Ireland is a bit of an exception because people from there are also eligible for Irish citizenship. They all use the same currency, even though Scotland and Northern Ireland have their own banknotes. It has a unified military, it has a single seat in the UN, and so on.
But then there are cases where they are treated like separate countries. For example they have separate teams in football (soccer) and many other sports.
|
82ebad5a-7609-4b9f-9b06-8384410b73b0
|
bq9zyc
|
Why does it usually takes a year or more to remaster a video game that has already been made
|
What you said is likely almost exactly what they are doing, but it took many years to slowly apply and test all of those non-content patches, and now they have to go back and do the same thing, but re-apply and test everything to an older base content.
To make sure everything works ok and to get it to the standard of retail now takes some time. They could probably do it more quickly if they really put their nose to the grindstone but most rushed games don't turn out well so I personally think it's probably better they take as long as they feel they need to get it to a high standard.
|
e43a39e9-0721-451a-8cfb-a46bac8a4d0a
|
bqa015
|
How does putting your phone in rice remove the water from it?
|
Pulling out the moisture is relatively easy. Dry rice is just that, it's dry. To the point that it will readily suck up moister that is near by. A similar concept, I keep bags of silica (basically sand) in my gun safe to absorb moisture from the air to keep the guns from rusting. Periodically I cook the silica bags in the office to dry them out and essentially "recharge" them.
Putting your phone in rice can help wick moisture out, but it won't necessarily save your phone. Water is full of minerals. When it dries, it can leave those behind, which is very phone fucking up your phone.
|
1f47c0e6-9e98-471e-9bd0-61658833871a
|
bqamwi
|
Why does poor circulation cause swelling/edema?
|
If the heart isn’t able to pump the blood around the body, gravity takes over and you’ll see edema in the feet and legs (usually).
|
16956852-67f8-4eee-aa5b-bbbfa9d430af
|
bqaxhq
|
if diarrhea serves to flush toxins or bad stuff from your body, does taking an anti-diarrheal lock those toxins in, causing harm?
|
Technically yes, I guess? Your body removes a lot of trash through your gi tract, but generally after the first bout of diarrhea, if you haven't removed the problem, you aren't making it better. Cholera comes to mind in this example. From a resource perspective, diarrhea is expensive, and can kill you. It takes a ton of salt, and water; cholera kills you by the diarrhea dehydrating you. It's more productive to try to stop the diarrhea, and replace the salt water you've lost, than just let it keep going.
Other toxins like LPS/food poisoning is just irritating your gi tract, so the tract tries to remove it. It's a balancing act of risk.
|
0efc3346-b3a5-4a2a-b015-0578de4838d1
|
bqb8le
|
How are there different temperatures of fire?
|
Fire happens when something changes its form. Some things take less energy to go through this change. Heat is the release of energy. So fire is sometimes more or less energetic than other fires.
|
a2ce6476-4192-4b3d-9c8f-7475f3c3601e
|
bqbfbt
|
Why do some cheeses have holes?
|
The little critters that make cheese have different biologic processes. Some of them, to be a little crude, fart. The result of using those critters is that the gas they release can consolidate into bubbles, leaving holes in the final cheese.
|
30f78754-5daf-45ee-b426-046e78317bf6
|
bqbgbv
|
How does fire emit light (the sun, a candle, a fire, etc.)?
|
It's a couple of different things going on, and how much each process contributes to the light produced depends on the type of fire.
The first one, which is responsible for most of the light from things like campfires and candles, is called black body radiation. This is the phenomena that all objects convert heat to light. You don't see cold objects light up, because the amount of light and the wavelength (color) of the light depends on the temperature of the object. Colder objects throw off low energy light like radio waves and infra red. Heat them up more and they start glowing red. More and you'll see more yellow, blue, or white light. Fires give off light like this because the gasses and tiny solid particles flying up from the fir are hot enough to glow.
The other process is due to the burning process giving the electrons inside of the fuel energy. Electrons in an atom are on a kind of energy ladder, where they can step up and down rungs. The burning process takes an electron and bumps it up the ladder a step (or maybe two or three), then the electron falls back down to where it was before. To do this it has to release all that energy that it just had, which it releases as light. When light is produced in this way, it's only in a very narrow wavelength, which means you see a specific, pure color of light from this process, some of which you're unlikely to see from black body radiation which sort of releases a blend of wavelengths together. This is what you see when you burn copper and the flame is green.
|
6665dbbe-3bbd-4b17-bca7-6f105a1f95be
|
bqbm4c
|
Conservation of Angular Momentum
|
The total amount of spinning stuff and the rate at which it spins stays the same when you change where the stuff is in relation to the other stuff that's part of the same spinning system, such that the amount of energy remains the same regardless.
For example, consider an ice skater spinning around. If they pull their arms in, they spin quickly. If they extend their arms out, they spin slower. Think about where their arms are in relation to the center of the spin. If their arms are very far out from the center they have to travel a larger distance - they are describing a circle with a larger diameter. If the skater rotated in the same amount of time, their arms would have to move faster, since they are covering a larger distance in the same amount of time. That is impossible without adding kinetic energy to the system. Instead, the skater spins slower. If the skater pulls their arms in, the opposite happens. Their arms are traveling a smaller distance, but they have the same amount of kinetic energy, so they spin faster.
|
480da8d3-2f10-4501-a03e-4848b02ac268
|
bqbp5w
|
What is bleach made from and how does it kill germs?
|
Household bleach is actually a mixture of chemicals, Its main constituent is a solution of ~3-6% sodium hypochlorite (NaOCl), which is mixed with small amounts of sodium hydroxide, hydrogen peroxide, and calcium hypochlorite.
Sodium hypochlorite is used on a huge scale in agriculture, and industries such as chemical, paint, lime, food, glass, paper, pharmaceuticals, synthetics and waste disposal.
hypochlorous acid, the active ingredient in bleach, causes the unfolding of proteins in bacteria in much the same was that heat stress or fever does. Those denatured proteins then clump together irreversibly into a mass in living cells, similar to what happens to proteins when you boil an egg
|
50086a9f-bbf6-4383-9aa5-915c670b5e05
|
bqcgj9
|
why are most states’ capitals not their largest city?
|
In many cases the capital was chosen to be as centrally located as possible, which explains Springfield, IL, and Jefferson City, MO. In other cases it was chosen to move development and economic activity from the coast to the state's relatively undeveloped interior; this was the case with Austin, TX. Sometimes the capital was chosen based on population patterns that are very different today; Tallahassee, FL, in the western Panhandle was chosen because at the time only a narrow strip of N. Florida was inhabited by Anglos.
|
f4895abc-9212-4c27-8223-721ec56ef69a
|
bqcrfg
|
Why do some foods become hard when they get old, and others become soft?
|
In the case of biscuits and bread, it’s moisture. Moisture in the air enters the hard biscuits, softening them up. With bread, it forms crystals which causes it to harden.
|
c5c2d2bc-b688-40e4-855a-d4c533f5aa2a
|
bqcyeo
|
How do mold/mildew resistant shower curtains work?
|
It's all down to the material the curtain is made from and waterproofing chemicals. Synthetic fiber, Nylon, and Polyester curtains with high thread/fiber count have natural water resistance because of the properties of the fibers and how tightly woven they are together that sheds off water rather than absorbing it. Lower thread count and natural fibers don't have as strong properties and are more likely to develop mildew. They can also can be treated with water sealing and water repellent chemicals to further increase their water resistance.
|
fc122ac2-2d8e-4f67-a5fc-2443ebaa2af4
|
bqd7h6
|
How boxers are able to remain standing yet are unable to defend themselves during a boxing match until the ref calls off the fight.
|
Speaking from experience .. It's like the lights are on by nobody's home .. Know what I mean ? Kinda remember it kinda don't .. Basicly you're just unconscious but you haven't fell down yet lol
|
cd4cdfa3-de71-4991-b3ad-962d927eef15
|
bqd9gv
|
why do skin burns look different on different body parts?
|
There is a lot of metal in the handle of a pot, and so it can deposit a lot of heat into your skin. This means it can do a lot of damage to your skin. But a soldering iron is small, and so it can't dump as much heat. So, even if you burnt the same part of your hand, the burn from a pot's metal handle would be much worse.
However, the skin on your fingers is much thicker than your skin nearly anywhere else, so you are highly protected. In the first case, you just scalded the outer layers of your skin. On the back of your hand, because of the greater amount of heat and thinner skin, you cooked the full depth of your skin.
|
5ff7ddec-7335-4e66-96d0-a1af23f314c4
|
bqdn86
|
What are gearbox ratios?
|
It's the ratio between the number of teeth on the input gear to the number of teeth on the output gear.
For a ratio of 4:1 (4), the output gear will complete 4 revolutions for each revolution of the input gear.
For ratios where the input gear has more teeth than the output, speed will increase at the cost of torque. If the input gear has less, torque will increase at the expense of speed.
|
c0630f7c-b8f3-4516-8bdb-5052b3b717cc
|
bqdr25
|
Why do babies seem to weight more than they do when they are sleeping?
|
When they're sleeping, they're "dead weight" because they aren't actively trying to balance themselves in your arms. It's much easier to carry around a stiff object rather than a limp one because it has less fluctuating centers of gravity. When an object is limp, its weight will be shifting more, which means the person carrying it will have to be activating a wider range of muscles to compensate for the lack of stability
|
5df42a48-2dce-4e17-bd29-eb7ea8ac2347
|
bqds0o
|
Why do thick books set off the alarm when going through security at the airport?
|
It's the same thing with Magic: the Gathering cards. From the side, the cards (or in your case the pages of the thicker books) look like a bunch of blades. Taking them out of your bag should help get through without additional checks.
|
5a42faad-59a2-4d4f-8f16-7a09618d8731
|
bqdsjm
|
How does a 3D printer work?
|
A 3D printer uses plastic for "ink" that comes in long strings. To print, the plastic is heated just above its melting point and then sqeezed through a nozzle onto the rest of the object you're printing. The temperature is chosen so precisely, that the plastic hardens within a second or two. So what a 3D printer really does is putting layers over layers of plastic over one another in special patters to build the thing you wanted
|
cb982fd4-4605-4915-b41a-8d4889710b29
|
bqdt20
|
Why do AA and AAA batteries not shock us when touching opposite ends with wet fingers, but licking a 9 volt battery does?
|
First of all, your saliva is much more conductive than your skin.
Secondly, 9 volts is times stronger than 1.5 volts.
|
bfa5c5a8-0199-4e19-b07b-05de1d8959df
|
bqdyvh
|
Why are Firecrackers so dangerous in enclosed spaces?
|
Putting fireworks in a closed environment and the expanding gasses can't go anywhere thus blowing out where the structure is the weakest. This is more so when fireworks are underwater. Water can't be compressed and the ball of expanding gasses goes in all directions thus blowing toilets clean of the wall. Putting the fireworks between your fingertips the expanding gasses can blow out in all directions unhamperd. And thus leave the fingers attached the the rest of your hand. However bigger fireworks will still blow fingers hands forearms to bits.
|
5ce09c9f-1bca-43d7-9cf3-4928e1dded7f
|
bqe4r6
|
How did identity and identifying people work before pictures?
|
For stuff like forensics, we were just asking one another about people based on facial features / hair color / eye color. At some point, we started sketching pictures based on the descriptions, which still happens today.
& #x200B;
In your example, if the famous scholar was known for some distinctive mark (unique hair style/color, identifying facial scar, distinctive style of dress) then it's possible someone could have guessed, but unlikely.
|
72ec6f40-8665-42d0-8ec2-d3949996a4a9
|
bqe6ql
|
How do multiplayer video game hacks work?
|
Wallhack, Maphack, etc. type client-side hacks rely on the fact that the server is going to send information to the client for objects which should not be visible to the player. In general it's doing so because the object might \*become\* visible very soon, and the client will want minimal lag to see it. However, since the information is available, the client-side software can be hacked to display that data, or hacked to hide objects that normally obscure vision (transparent walls, no smoke textures, etc.).
& #x200B;
Speed Hack, AimBot, auto-farmers, etc. rely on the fact that the server, while authoritative on the state of the game, isn't capable of performing all the relevant checks to ensure the client is sending valid data back. Thus the client can be hacked to send back erroneous movement / aim / etc. packets, which the server applies as if they were real packets. Thus you can do things like move faster than expected, by sending errornious "i'm here now" packets which are still close enough to the old position that the server thinks "eh, that's just lag causing a discrepancy, I'll allow this". Likewise, the server won't know how quickly you flicked your mouse, so it will often blindly accept a packet saying "i shot at this guy's head". And for things like an in-game market, the bot just sends buy/sell commands without having to click through the UI and wait for things to happen, thus you can trade faster than any human could.
|
0e885b7a-86a5-48a0-9333-2764edff430f
|
bqemdc
|
How are Koalas "functionally extinct"? Is there something that can be done/is being done to get them back?
|
The recent spam of koala news is partially incorrect. It contains many dubious facts and overblown conclusions. The 80,000 number is given by the Australia Koala foundation, a lobbying group for wildlife conservation. This number is vastly below other estimates by reputable sources.
This paper from the universities of Queensland, Melbourne, Australian National and other major institutions instead estimates the number of koalas around 329,000 (_URL_0_)
The results estimated there will be a 24% decline in koala population over the next 3 generations. i.e ~250,000 koalas after ~20 years. This is of course a serious problem, but koalas are nowhere near extinction or functional extinction. The news is a huge overreaction.
According to the ICUN, a species is “endangered” if it has less than 250 individuals, or at least 50% decline over 3 generations. By the strictest definition, koalas are not endangered. Same for the “vulnerable” rating, it requires less than 1000 individuals, or at least 30% decline. Koalas are again not vulnerable by definition. The highest category they could be placed in is “Near Threatened”.
So while yes, Koalas should have their habitats protected and conversation efforts in Australia should step up, this latest event is really blown out of proportion.
|
25e43218-a63e-45a6-84b6-1f54af539fe0
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bqeqqd
|
Countries like America have a lot more money than they did 100 years ago. How does money get put into the economy?
|
These days money is mostly created by the banks. When you take out a loan the money is created out of nothing. The bank says that you now have $100K to spend, and you owe them $100K plus interest. The vast majority of the non-physical money that circulates is simply debt to a bank. When you repay the loan, the money is destroyed.
The rules for how large a fraction the reserves a bank has to be to their outstanding loans have been relaxed to almost non existance so that the banks are pretty much free to create as much money as they want. That's why our society is so much "richer" than a 100 years ago.
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41aed7e1-45bd-4186-9ffc-652f3b495fbe
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bqf0nu
|
Kalergi Plan
|
The "Kalergi Plan" is something made up by the far-right.
Count Richard von Coudenhove-Kalergi was an anti-nationalist, pan-European political activist in the 20s and 30s. He was also a freemason and a former anti-semite.
You might spot some clues as to why he's disliked by the far-right. The Nazis stripped him of his doctorate in philosophy for being Jewish, even though he wasn't. Fortunately he escaped to the US. After the war he strongly supported the EU. In fact it seems he remained in favour of going further and creating a "European state".
Kalergi wrote, in the 20s, that he believed that in future all people would be mixed race and that persecution of the Jews had shaped them into the "spiritual nobility of Europe". If he wrote or talked any further about this, it doesn't seem to have been picked up by anyone.
From this, the far-right construct the idea that the European Union is animated by a plan concocted by Kalergi, Jews and Freemasons, to push "miscegenation" and "white genocide", to make sure Jews run the world, and all the other familiar tropes of modern far-right conspiracy theories.
|
122fe664-cea7-447f-b54c-c0393edc560f
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bqf89e
|
why usual purchases with a card need something memorable (PIN code), but online purchases have their secret code printed right on the card?
|
This is something that is changing in the EU. They are going to add in 2 factor authentication for cards. For example one of the cards I have requires me to unlock my banking app using my pin or fingerprint and approve the transaction.
Effectively requiring someone to steal and unlock your phone and card.
Currently it's not uncommon for Visa or Mastercard to add a secondary check where you enter a password as part of the transaction.
|
94f93c0a-061e-41b4-ab4c-03656ff161d7
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bqfh8l
|
Why are people who don't pay any taxes themselves allowed to vote on how tax payer money should be spent?
|
In most democracies, we have gone away from "Only rich people should vote" back in the early 1900's, because we found out that if only rich people were able to vote, only rich people would ever get any benefit out of government.
|
a8d75cb6-18dc-4ed4-a8d3-86ee833e5029
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bqfols
|
Color-blindness glasses filter out colors, but wouldn't that make the problem worse?
|
Normally, people's eyes have three color receptors, for red, green, and blue light.
However, there's some overlap. Orange light, for example, will excite both the red and the green receptors a little bit. For some people, *red* light will excite both the red and green receptors, which is a problem because then it seems really similar to when orange light is received, since both receptors respond similarly.
The glasses take out a section of light that's most overlapped. This means that a chunk of the red and a chunk of the green light is simply filtered out, but *some* of the red light (the "redder" light) remains, and *some* of the green light (the "bluer" green light) remains.
As such, when someone wearing the glasses sees a red balloon, they'll only see the reddest light coming from that balloon. So it will appear definitely red. Whereas when they see an orange balloon, it will no longer make the red receptors respond since the reddest light from the orange balloon will have been filtered out, allowing the green receptor to respond a little bit to it, and the red receptor to respond a little bit to it (due to the orange balloon still having *some* red light that gets through on the reddest side of the spectrum) and so the orange balloon can be seen as distinct from the red balloon.
Meanwhile, blue balloons look blue, since they never had as much red or green light reflecting from them to begin with.
|
268f66c9-926a-4b40-8e9c-1f2bc6ad958d
|
bqfret
|
What’s the difference between an artist ‘sampling’ something as opposed to ‘ripping off’ or plagiarising?
|
There is a big grey area here and the law really isn’t much help since you have cases like “Blurred Lines” that are strongly reminiscent of a Marvin Gaye classic but are clearly not ripped off - and then you have things like “Bitter Sweet Symphony” which are clear (and mistakenly permitted) rip offs. And then you have things like Amon Tobin who samples the hell out of Brazilian Jazz and arguably makes something new from it and then you have things like ATCQ that sampled tons from classic Jazz and Soul and definitely made a different thing that would not have been the same without those particular samples, but in most cases, there wasn’t an effort to conceal or present the samples as their own - so much as to make the old new.
All this is to say that there is a spectrum of samples - ripping off, attempting to pass off an old classic as a new thing, and making new things from old things - and it’s not formulaic determining which is which.
|
6996eaa7-dd35-472b-97d7-45b1dd200355
|
bqg2eu
|
What’s the difference between gel, rollerball, and ballpoint pens?
|
Ball Points use oil based inks which are stickiest.
Roller balls come in 2 types:
Gel Rollerball - medium stickiness.
Water based Rollerball - least sticky.
Mechanically they have the same design at the tip, varied for the viscosity of the ink base (oil, gel, or water).
Edit: Some water based roller balls are so “runny” they have a section between the reservoir and the tip which slows the ink flow to stop it from spilling out. This section uses capillary action and vanes similar to modern fountain pens.
|
5ee226d9-1289-47bc-9244-345d99b14d39
|
bqg37q
|
Why so many animals enjoy being petted?
|
Probably just mammals; I’ve owned fish and iguanas and they’ve never wanted to be pet. In mammals, physical, non-violent contact releases oxytocin in large amounts. It’s basically a drug to let us know we’re all right. I bet if you didn’t have tv, Reddit, a gf or other hobbies, getting a little affection would mean a lot. As it stands, our animal slaves get treated like animal slaves rather than non-human persons, so we are mystified by them getting excited by simple things (seeing another dog, not being left to starve, etc).
|
c893d501-aed6-4e84-88a6-e30ae83b4e96
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bqgg1e
|
Why is it that the first 10-20% of most IPhone battery’s are used up within the first 20-30 minutes while the last percent can sometimes last up to 15-20 minutes?
|
Two things are happening. First, it is not easy to tell how charged a battery is. The only thing you can really tell from a battery is the voltage. From that, and previous study of the battery, software in the phone and the battery can estimate the remaining charge.
Secondly, as the charge in the battery gets low, the phone switches of bits of functionality to make it last longer.
|
c22a7d74-5f01-43a6-a5c6-9fa8fd3b4602
|
bqgmqt
|
How are soda cans recycled when they have a plastic film inside them?
|
There are dozens of YouTube videos about that, but the basic process involves melting everything down and separating the aluminum from the not-aluminum. A technical term for undesirable matter in melting and smelting is *dross*.
|
2837d4d2-cc97-4db6-a07b-c99f636b91e7
|
bqgn24
|
Why do self-driving cars use a rotating camera instad of a binocular setup for depth perception? Wouldn't it reduce the ML required?
|
AFAIK the rotating thing on self-driving cars is not a camera but a lidar (like radar but with visible light) which gives the distances to the surrounding objects and the car computes a 3D model of the area with that range data.
|
de77ba15-be7a-4c0b-9193-8e0432a48050
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bqgv7f
|
Why do trees and grass grow after winter's over but other plants die?
|
It is not just tree and grass that live for many years a a lot of other plants do that too. A lot of flower we like in garden only live one year but there is plant you can select that live longer.
They are called Perennial plant and is plant that live longer then two years.
There is also Annual plant that only live for one yeas and produce new seeds each year and Biennial plant that life for two years but they are relative rare.
The answer it that thy have evolved to live like that. Why is in part because mutation resulted in that and part is that different plants have evolved different strategies to to thrive and both works.
& #x200B;
There is a drawback to Perennial plant and that is you need to store energy in the roots for them to survive and grow up the next year. A Annual plant can use all energy it get so produce a huge amount of seeds because it do not need to store any energy. Because all those types exist in nature all those way works.
& #x200B;
You can in a way compare it to animals where mice is pregnant 20 days and produce 3-14 young and can have 5 to 10 litters per year and can have children at a age of six week but live for only 2-3 years. Elephants are large and is pregnant for 2 years and have one calf and the next com 4-5 years late, they can have offspring at a age of 9 and live 60-70 year in the wild. That is tow different strategies in animals that you can compare to plans.
|
2c568983-56c5-4761-a692-57d9bc972b04
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bqgxsc
|
When people lose their memory in an accident, how do they still know how to speak and write?
|
It happen in real life too. The brain is not a a system like a computer but different part do different so there are areas that is language center and vision center etc So you can have damage in one part that damage primary damage that functions you can have a stroke that make i hard or impossible to formulate a sentence but you cab still understand language and remember stuff. So it is not like a computer with one storage part for everyting and one CPU that do all processing the brains store information and do stuff all over.
& #x200B;
We stor [Procedural\_memory](_URL_0_) that is language and stuff we do we do without conscious awareness like how to ride a bike in a different way from [Episodic\_memory](_URL_4_) that is memory of what we did in the past and [Explicit\_memory](_URL_1_) that is remembering facts. Different part of the brain is used for different thing
& #x200B;
The result is that [Retrograde\_amnesia](_URL_2_) result that you can speak and so task like rida a bike but you can forgot how we are but we can still learn new things.
There is also [Anterograde\_amnesia](_URL_3_) where you remember the past by can no longer form net memories
Both happen but how int work in the brain in not clear exactly how. Retrograde amnesia is closely associated damage to specific brain areas that is associated with the type of memory. Out understanding on the brain is in a lot of areas limited and we do not even understan exactly how information is stored in the brain. Retrograde amnesia
|
1e5260bf-1949-4df1-87e9-d842095e93ca
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bqh7ms
|
How do fish reproduce?
|
The female fish will find or make a nesting area (here in Florida, in freshwater you can see rings near the shore, and those are tilapia nests). The female will then find a mate and bring him to the nest. The female will drop her eggs in the nest. Then the male drops a cloud of sperm on amd around the nest, which fertilizes the eggs.
Edit: I bet this answer will be removed. Every single time I have answered in the most simple way (like you would to a 5 year old), it gets removed.
|
f8f1471b-6b80-4a5c-8489-d28539c3dd27
|
bqh9ft
|
Why we can't actively hallucinate
|
So NaD, but my limited understanding is that psychotropic drugs and psychedelics rely on already in place neurochemical pathways, and excite the shit out of them by imitating naturally occurring neurotransmitters to produce serotonin, dopamine, and a few others.
So basically, the stuff that makes you high and hallucinate is already in the brain, just not in the same amount as when you are high.
Plus, your brain is trained to filter and layer the world into usable information when the levels are normal. When they get higher, your brain no longer interprets the information the same way. This is also one of the reasons why psychedelics are starting to prove useful for things like neurogenesis and addiction treatment. It forces the brain to kind of slightly rewire itself, for lack of a better term.
|
cbe37c7e-1415-44c1-92fc-ec586c7d8c04
|
bqhhah
|
why swelling occurs while walking after having a knee injury
|
Necrosis occurs to injured tissues of your knee; the cells composing theses tissues release their innards and the adjacent healthy cells freak-out and release chemical messengers called cytokins that recruit your immune system to clean up the mess--this is the inflammatory response.
Part of the response sees the dilation of blood vessels that facilitates the repair process by allowing more blood flow to the injured area. This is important because more blood brings more nutrients and if we're talking about a closed wound, then the immune system has extra work to do by removing all of the dead tissues and parts there of as well as filtering the blood that accumulates during swelling.
TL;DR: increased blood flow promotes the repair process by removing dead tissues and supplying new materials for the healthy tissues to regenerate anything damaged during the injury.
|
1ebcb96a-2012-4bfd-b2d6-5a84bf6ec59f
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bqhjwx
|
What do accountants do?
|
They keep track of either company or personal finances for the purpose of reporting or distribution of profits. The most common association with accountants is that they gather documents from people and prepare their tax returns, so they know how much to pay the government.
The rest of the year, accountants are keeping track of financial data from companies that hired them in order for them to know that legally they made X amount of money. Partners in the company will be issued a K-1 displaying that and they should receive a distribution of profits equal to that amount.
|
c32b8fc9-9faa-47ce-bb23-52f42a36678c
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bqhm9p
|
AGM Batteries
|
The lead plates are packed tightly in the glass mat separaters and all the electrolyte is absorbed into them, rather than a more conventional flooded cell type battery. Using a non agm battery will work but will usually fail quicker when the application calls for agm.
|
e032cdf9-182a-419a-93fe-6f7f3e756ab7
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bqhml6
|
How does Clear allow someone to “skip the security line” at airports?
|
It's a more extensive background check. Basically determines you're not a risk so you can skip the line.
Everyone else they dont know who you are so you have to go through security.
|
4f5adcc9-8b97-4d81-8fbe-1c20096b7aee
|
bqht4u
|
- what's the difference between 3G, 4G, and LTE when using mobile data?
|
It is all based on Frequency or speed of the signal. 4G/LTE are at a high frequency/speed, which means more Data per second. This results in the faster speeds. It is more limited by range than 3G. Because 3G has a lower frequency, it can travel further distances albeit at slower data speeds.
|
3b46dcb9-afc8-4b95-9529-c6cc7904f1b0
|
bqhxk2
|
Whatever happened to those weird noises affecting nearby speakers when we received a call on a cell phone back in the days, as illustrated in the link?
|
Only 00's bois will remember, or however kids are talking these days.
|
26b35f98-3c6a-44bf-9c2b-0a5221a04c7b
|
bqib4b
|
how the moon can drift away from earth despite earth’s immense gravity on the moon relative to other celestial objects
|
The Moon's gravity causes tidal bulges on the Earth directly bellow it. Because the Earth spins faster than the Moon orbits, the Moon gets pulled along by the bulges causing it to speed up while the earth slows down. Because gravity decreases exponentially most of this effect already happened long ago when the Moon was closer. The Moon will not escape Earth during Sol's lifetime.
|
49a3410c-d024-4f4b-ae56-99bca9297870
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bqied1
|
Why does our brain/tongue make mistakes on tongue twisters?
|
It's not really a neurological thing, it mostly has to do with what your tongue is used to saying. It's physical. People who grew up speaking more complex languages will generally not have as much trouble with tongue twisters (or copying accents for example). It's a matter of what you're physically used to, and you can practice it out to become better at them.
|
27e33c00-7a72-4106-aa4c-b7fc47a84da6
|
bqii4h
|
What is the point of honorary doctorates?
|
It's usually awarded to honor a person for their contributions to the field. It can also serve as a marketing tactic or promotion for a specific academic institution.
Though of course it's not the same as earning a degree the usual way. Some people with honorary doctorates put "Dr." in front of their name and choose to be addressed that way, though this is controversial.
|
abf5ef31-9375-4c22-a6d9-7820d2a24ea9
|
bqirwq
|
Why are most phone scammers Indian or from around that neck of the woods?
|
India was under British control, so India speaks a lot of English. Also anyone can learn tech skills for relatively cheap so many have those skills. Finally it's cheaper for companies to hire because there is a lot of cheap labor
|
9a3e75a3-0b18-456b-99be-1146b0803d0a
|
bqj5sp
|
What causes unusual color patterns appearing on clouds?
|
This is a pretty effect called cloud iridescence. The basic mechanism is that water droplets act like zillions of little prisms, scattering the light through refraction.
|
7e7710fc-cc64-49f6-9107-f5cc979489f9
|
bqj9rq
|
What's the difference between astronomy and astrology?
|
Astronomy is the scientific study of the solar system, stars, galaxies, space basically.
Astrology is the psuedo science, the fake science, of using constellations and zodiac signs to predict stuff about your life.
|
867dc45a-2ca6-4c6f-b6ff-712663e6f83d
|
bqjc6n
|
What are the degrees of murder ?
|
First degree usually means premeditated. You thought about it, you planned it out.
Second degree murder is not premeditated, you got mad, and in the spur of the moment, you killed someone. The key for a murder charge is that you definitely meant to kill him.
If you were just mad and punched him, and you accidentally killed him but you just meant to break his jaw, then that's manslaughter, a completely different thing. Drunk driving charges are often called "vehicular manslaughter" when someone dies.
Some states have third and fourth degree murder, but I don't know much about them.
|
41448e4a-70f7-4017-bc36-b193965f0b86
|
bqjejy
|
Why is it so hard to stop peeing after you started?
|
Mostly because it isn’t something you practice. If you practice, or are in a situation where you must, it won’t be so hard.
|
986e930a-8b3a-4944-8f1a-69b21242a5af
|
bqjoaj
|
How is plastic actually made?
|
That depends on the type of plastic.
Consider a ball pool for children.
It is easy to bath in it, because its easy to move them away. So it's like a liquid.
If you would now glue two balls together and make a new ball pool out of these, is would get harder to swim, as the two balls are not round anymore.
Now imagine a chain of several thousand balls.
If you move one, you also have to move a lot of other chains. So they basically become solid.
Polypropylene and Polyethylene are such chains of carbon molecules.
With chemical reactions small molecules (propylene and ethylene) are glued together to form long chains. This is called POLYmerization.
Hence the name polymer.
|
0d221974-087e-4e63-b59c-be5730a80e3d
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bqjzd3
|
As in movies, why is it that the bigger something or someone is the slower is appears to move? Eg. Antman in giant mode.
|
It’s not just in movies. Think of ant and elephant
The strength of your muscles is based on how wide they are. Being longer doesn’t make them stronger.
As you get bigger, the cross-sectional area (width) of your muscle increases, but your weight increases more since you get longer too.
For example, if you become 2x bigger, that means 2x length, 2x width, and 2x height, and overall 8x heavier. However, your muscles, since length doesn’t matter, are only 4x stronger
|
b039e791-812c-448a-a052-380ad444ce50
|
bqk115
|
Sand forming different patterns on a speaker according to the frequency, how does it work?
|
[Standing waves](_URL_0_)
If you shake a string at right frequency "knot" points will form that stay stationary.
This is due to the wave created by the shaking and the wave reflected from the other end interfering with each other.
Video: Standing waves on a string _URL_2_
Objects that are more complex than a string will have different kind of standing waves on them. They too will form knot points that are stationary (or move only very little).
Examples for a circular surface: _URL_1_
The sand will move away from the areas that move alot and accumulate on the stationary areas.
|
cc7cb297-8605-4915-beff-4ee01a711da6
|
bqk6mn
|
Why do pregnant woman sometimes crave strange food combinations?
|
Lots of times it has to do with what the baby needs to grow, or some deficiency in the mother's body. Craving ice cream could be a sign of calcium deficiency, for example. Besides being important for bones and muscles calcium is important for the heart and nervous system.
|
8d053321-18ee-447d-8406-ab01238fb841
|
bqk8v8
|
What's the difference between a Technologist and a Technician?
|
Technician actually performs work/maintenance on machinery. A technologist studies said machines looking for ways to improve on it
|
5a275730-fd47-44d8-b98c-5d633ae90866
|
bqkdst
|
What does meditation actually do to the brain?
|
There are a few different types of meditation with a few different goals.
One goal is to just relax. Another goal is to think clearly without fleeting "automatic" thoughts. By focusing on your breathing for example, you aren't distracted by fleeting or "automatic" thoughts. It relaxes you. By getting rid of these automatic thoughts (the kind where you aren't *trying* to think of this particular thing; it just happens), you can focus on a specific concept or issue you are trying to consider.
Edit: sorry, my response doesn't have anything to do with the biological side of it. I'd assume it decreases cortisol levels though?
|
e92b5b9c-a195-4493-ab4f-bef909bfd42c
|
bqkmzm
|
in what ways would it be benefitial to freeze Cows Milk (the blue capped bottles) in a household?
|
Blue capped bottles mean 2% or 1% here in Texas (depending on brand). They do not mean frozen. I have never heard of freezing milk as a beneficial thing. In fact I think it would generally be a bad thing as it would cause the milk to lose homogenization and separate.
|
238c9228-518d-4a6e-ac8b-27a26a09be1a
|
bqkneu
|
Why do adults have more negatively visceral reactions to carnival rides and roller coasters?
|
I am not sure 100% but I want to say it has to do with our understanding of consequence and mortality.
This ride is fun but WHAT IF a bolt came undone and my 30+ years of life comes to an end on a silly carnival ride run by these "professionals".
|
06ac07fb-4f1b-4841-b214-71d36a0a296a
|
bqktcv
|
Why do stomach virus symptoms seems to start at night?
|
Stomach viruses are normally contracted by eating contaminated food and they generally take 2-6 hours to start showing symptoms. So if you ate a contaminated lunch it would start showing in the afternoon or evening, and if you ate a contaminated supper it would show at night.
|
1f41d3d4-62fa-4c5d-9a82-5df299500bd3
|
bql9d8
|
So if a planet is bigger, does it mean that the horizon would be farther away and you could see "more" stuff?
|
If a planet is bigger then it curves less rapidly which means that yes more stuff would be in your line of sight
|
e1ac58d8-e079-4f17-95c8-b2600605b115
|
bqla8c
|
What exactly is the Bilgewater inside a ship and what does it consist of?
|
The bilge is the bottom of the boat. Ships typically get water in the bottom. That water is called bilge water. Depending on the type of ship and era, bilge water may have trash, fuel, Pooh in it.
|
4e1d4e13-5e6d-485f-9269-89be120debbf
|
bqlo56
|
Why are international borders in the mountains between Pakistan, India, Afghanistan, China etc. dotted on google's world map?
|
These are disputed borders between the nations so Google does not draw them with a solid line.
|
8363d130-ef1e-49ee-be31-3307efe6749c
|
bqlsr4
|
why do journalists and authors often put brackets around words in seemingly strange parts of sentences?
|
Those brackets indicate an inserted section, usually where when a word like "it" is used to, to explain what"it" was referring to. This is done for clarification purposes.
|
2e6e7f7a-41fa-41f4-aba5-bb50a073470e
|
bqltsg
|
How come we measured the radiation from the Big Bang?
|
The cosmic microwave background radiation is what we think is a remnant of the Big Bang because it's generally uniform - i.e. it's coming from everywhere, and not one particular source. This suggests that it happened as a result of the Big Bang's expansion, and as the universe expanded, this radiation became thinner, less dense and colder and allowed other elements to form and bind. But that's how it's different from other sources as far as I can tell - other radiation comes from specific sources we can identify, like a star or a black hole, etc. CMB is generally everywhere and mostly uniform, and consistent with the expansion of the universe.
|
d6595c6d-c12f-4272-ac1c-6f86b1ff2385
|
bqmw0h
|
How can Latin truly be a "dead language" if we can still translate and learn it?
|
The deffinition of a dead language according to Cambridge dictionary: a language that is no longer spoken by anyone as their main language. Latin in't spoken natively by anyone so it's a dead language
|
d79cef35-577e-487b-b50c-6447a9a00663
|
bqmxny
|
Can someone explain to me ping? The network term.
|
Think of it like a call and response. If I ask the server if it can hear me, how fast does it get back to me? That's what a ping is.
|
a316ca19-5b28-4b8e-9dc5-d0d993bb7603
|
bqnoqe
|
How long exposure photography works.
|
Imagine you have a grid of buckets, covered by a retractable roof. If you retract the roof while it's raining, the buckets will fill up with water.
Suppose it's only raining over a very small region. Only the buckets under the rain will fill up, while the other buckets won't.
Now, consider, what if that small region of rain is moving. If you open and close the roof very quickly, the rain won't have much time to move and only a few buckets will be filled.
But if you open it, and leave it open, you'll see all the buckets it passes over will get filled. You'll end up with a trail of full buckets, even though the source was smaller than that area.
This is more or less how cameras work, but with light instead of water, and sensors (or film) instead of buckets.
|
bf2f372e-1476-45ce-a5f6-31c7fa0f35ef
|
bqnxip
|
How did peoples with different languages communicate during first contact in antiquity?
|
Generally what happens is that both parties start pointing to objects and saying what the object's name is. After defining what things are and establishing a baseline for communication they start working into more complicated examples.
There's a story about how Canada was named that the word Kanata meant village but the explorers thought it was the name of the area itself. Standard mistranslation while trying to work out communication.
|
3a7f840e-2c59-4b24-8f28-6f5fcff28c63
|
bqo23x
|
How are wooden bows so flexible without breaking while the same type of wood used to make a table (for example) would break if you flexed it that far?
|
I don’t know if they make tables out of yew, but the geometry makes a difference. A table is a slab designed not to bend, but to hold up a load. A bow is tapered towards the ends so the flex is distributed in a way the wood can support. Many bows are laminated to increase this ability.
|
3125c9d0-3c81-4809-80fc-5f8935f9ae2c
|
bqo6ij
|
fire is neither solid, liquid or gaz. So what is it exactly?
|
Fire isn't a substance, it is a process. Chemical reactions, typically a fuel reacting with oxygen, will release heat that causes the byproducts to briefly glow. It isn't burning air, but things like tiny pieces of carbon soot.
Plasma is a phase of matter (like solid, liquid, or gas) where the atoms can no longer hold onto their electrons and they sort of flow freely around in the mix. Much of the time this happens because it gets very hot, but under certain conditions it can happen when cool such as in those toy globes with the glowing tendrils from the central ball.
|
e9e92ca0-7458-4bb5-baa1-e3634b216bda
|
bqofe7
|
why do girls typically have better handwriting than guys?
|
The fine motor skill brain regions develop sooner in girls than in boys. Since handwriting is taught early on, girls have an advantage due to more naturally mature fine motor skills.
[Source](_URL_0_)
|
5610bca8-2843-4c92-b69e-3cb5d53318ab
|
bqogm4
|
Why does come in a glass bottle taste so much better than coke in a can/plastic bottle?
|
Glass is nonreactive with the coke. Same with metal which is why McDonald's coke is best.
Also glass bottles are made in mexico with real sugar.
|
11a099a5-864a-4bb2-9c7f-bbb49a671ded
|
bqoiqx
|
Why is it okay to eat blue cheese, but not other things that are moldy?
|
Different species of mold have make different byproducts as they grow, and not all of them are harmful. Through experience we know some that are safe, like those used in making cheese. (Yeast is also a fungus, but not a mold, and is used for baking and brewing.) When food around the house gets moldy from whatever spores were in the air, it's a bad bet: there's a big risk that whatever mold it is either is generally poisonous or might produce something you're allergic to.
This why cleanliness is actually very important when working with mold. Get the wrong kind of fungus in your product and it will ruin the whole batch.
|
e24dcb14-b6b1-4d39-a998-9213ebb310a6
|
bqoleg
|
Hulu's Subscription Service
|
All are unlimited streaming. $6 is basic with commercials, $12 is no commercials, and the $45 includes live TV also.
|
69cc98c0-3043-424e-8570-fb4288069023
|
bqonmr
|
Why did paleontologists believe dinosaurs stood upright and dragged their tails?
|
Because they looked at the fossils they were finding and classified them as reptiles. Then they looked at extant reptiles and built their models on how those move and behave. The first models did not have them upright, they were modeled as [large, lumbering, quadrupeds](_URL_0_). It wasn't until a discovery of several intact iguanadon did they realize some were bipedal. When the bipedal models started being drawn, they again compared them to extant reptiles and extant reptiles drag their tails behind them.
Edit: [Here](_URL_1_) is a good explanation
|
071cb9c1-1fea-44b8-a05a-b43864a80b54
|
bqotfg
|
Why can some viruses/bacteria/germs only spread through certain methods?
|
It depends on what parts of the body a pathogen infects.
HIV requires white blood cells to reproduce, which is why it only spreads through what we refer to as “blood fluids” which are things like blood (obviously), semen, and breast milk. The saliva of people who have HIV does not typically contain the virus, so if someone sneezes, they’re not going to fling the virus into the air like someone with a cold would.
The common cold typically infects the sinuses and the mouth and throat, so when we cough, bacteria will spread through the air.
Salmonella infects the digestive tract, but it’s also a bacteria that tends to infect chickens. Improperly cooked chicken, and vegetables that come into contact with contaminated water will pass the bacteria on to humans. And if a human gets it, and doesn’t wash their hands properly after using the toilet, they can spread the bacteria to any food they come into contact with.
|
713f1633-b5c3-4c39-b97a-5cf8b23c0a7a
|
bqox71
|
How do bone growth stimulators work?
|
Specifics depend on the specific stimulator you were given. But the basic way they tend to work is by altering the balance of osteoblast and osteoclast function. Osteoblasts form bone and osteoclasts "eat" bone (so that it can be replaced). Stimulators can make osteoblasts more active or reduce the activity of osteoclasts so that more bone matrix is deposited than eaten.
|
8db7dea9-aea5-49d0-a461-8602b2edb5b2
|
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