Datasets:

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mlxen

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squad_adversarial_train_dataset

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{ "text": [ "enabling year-round production and the growth (in enclosed environments) of specialty crops" ], "answer_start": [ 41 ] }

{ "text": [ "produce cucumbers year-round for the Roman emperor Tiberius" ], "answer_start": [ 253 ] }

{ "text": [ "Europe" ], "answer_start": [ 357 ] }

{ "text": [ "The World Solar Challenge" ], "answer_start": [ 81 ] }

{ "text": [ "90.87" ], "answer_start": [ 430 ] }

{ "text": [ "a biannual solar-powered car race" ], "answer_start": [ 110 ] }

{ "text": [ "1987" ], "answer_start": [ 285 ] }

{ "text": [ "67 kilometres per hour (42 mph)" ], "answer_start": [ 343 ] }

{ "text": [ "90.87 kilometres per hour (56.46 mph)" ], "answer_start": [ 430 ] }

{ "text": [ "The North American Solar Challenge and the planned South African Solar Challenge" ], "answer_start": [ 469 ] }

{ "text": [ "1975" ], "answer_start": [ 3 ] }

{ "text": [ "1975" ], "answer_start": [ 3 ] }

{ "text": [ "Kenichi Horie" ], "answer_start": [ 172 ] }

{ "text": [ "the sun21 catamaran" ], "answer_start": [ 250 ] }

{ "text": [ "40" ], "answer_start": [ 224 ] }

{ "text": [ "Solar Impulse" ], "answer_start": [ 963 ] }

{ "text": [ "1974" ], "answer_start": [ 3 ] }

{ "text": [ "29 April 1979" ], "answer_start": [ 80 ] }

{ "text": [ "July 1981" ], "answer_start": [ 421 ] }

{ "text": [ "California to North Carolina" ], "answer_start": [ 480 ] }

{ "text": [ "36 hours" ], "answer_start": [ 1193 ] }

{ "text": [ "hydrogen production from protons" ], "answer_start": [ 547 ] }

{ "text": [ "Solar chemical processes" ], "answer_start": [ 0 ] }

{ "text": [ "artificial photosynthesis" ], "answer_start": [ 350 ] }

{ "text": [ "The Solzinc process" ], "answer_start": [ 688 ] }

{ "text": [ "pure zinc" ], "answer_start": [ 882 ] }

{ "text": [ "Hydrogen production technologies" ], "answer_start": [ 0 ] }

{ "text": [ "uses concentrators to split water into oxygen and hydrogen at high temperatures" ], "answer_start": [ 245 ] }

{ "text": [ "Solzinc process" ], "answer_start": [ 692 ] }

{ "text": [ "heat" ], "answer_start": [ 59 ] }

{ "text": [ "Thermal mass systems" ], "answer_start": [ 0 ] }

{ "text": [ "water, earth and stone" ], "answer_start": [ 247 ] }

{ "text": [ "reduce overall heating and cooling requirements" ], "answer_start": [ 356 ] }

{ "text": [ "thermal" ], "answer_start": [ 75 ] }

{ "text": [ "The \"Dover House\"" ], "answer_start": [ 232 ] }

{ "text": [ "paraffin wax and Glauber's salt" ], "answer_start": [ 31 ] }

{ "text": [ "64 °C or 147 °F" ], "answer_start": [ 214 ] }

{ "text": [ "Dover House" ], "answer_start": [ 237 ] }

{ "text": [ "they are low-cost, have a high specific heat capacity and can deliver heat at temperatures compatible with conventional power systems" ], "answer_start": [ 458 ] }

{ "text": [ "1.44 terajoules (400,000 kWh)" ], "answer_start": [ 664 ] }

{ "text": [ "rechargeable batteries" ], "answer_start": [ 44 ] }

{ "text": [ "rechargeable batteries" ], "answer_start": [ 44 ] }

{ "text": [ "Net metering programs" ], "answer_start": [ 241 ] }

{ "text": [ "by 'rolling back' the meter whenever the home produces more electricity than it consumes" ], "answer_start": [ 357 ] }

{ "text": [ "Most standard meters accurately measure in both directions" ], "answer_start": [ 747 ] }

{ "text": [ "a hydroelectric power generator" ], "answer_start": [ 250 ] }

{ "text": [ "water pumped when energy is available from a lower elevation reservoir to a higher elevation one" ], "answer_start": [ 61 ] }

{ "text": [ "by releasing the water, with the pump becoming a hydroelectric power generator" ], "answer_start": [ 203 ] }

{ "text": [ "1973" ], "answer_start": [ 4 ] }

{ "text": [ "The 1973 oil embargo and 1979 energy crisis" ], "answer_start": [ 0 ] }

{ "text": [ "the Federal Photovoltaic Utilization Program in the US and the Sunshine Program in Japan" ], "answer_start": [ 228 ] }

{ "text": [ "SERI, now NREL" ], "answer_start": [ 389 ] }

{ "text": [ "NEDO" ], "answer_start": [ 413 ] }

{ "text": [ "Fraunhofer Institute for Solar Energy Systems ISE" ], "answer_start": [ 433 ] }

{ "text": [ "the 1920s" ], "answer_start": [ 121 ] }

{ "text": [ "20% per year" ], "answer_start": [ 503 ] }

{ "text": [ "in the 1890s" ], "answer_start": [ 68 ] }

{ "text": [ "falling petroleum prices" ], "answer_start": [ 359 ] }

{ "text": [ "20%" ], "answer_start": [ 503 ] }

{ "text": [ "154 GW" ], "answer_start": [ 677 ] }

{ "text": [ "The International Energy Agency" ], "answer_start": [ 0 ] }

{ "text": [ "The International Energy Agency" ], "answer_start": [ 0 ] }

{ "text": [ "glass in building" ], "answer_start": [ 158 ] }

{ "text": [ "materials used in solar water heaters" ], "answer_start": [ 207 ] }

{ "text": [ "ISO 9050" ], "answer_start": [ 138 ] }

{ "text": [ "ISO 10217" ], "answer_start": [ 182 ] }

{ "text": [ "passive solar or active solar" ], "answer_start": [ 103 ] }

{ "text": [ "photovoltaic systems, concentrated solar power and solar water heating" ], "answer_start": [ 270 ] }

{ "text": [ "orienting a building to the Sun" ], "answer_start": [ 397 ] }

{ "text": [ "559.8 EJ" ], "answer_start": [ 335 ] }

{ "text": [ "1,575–49,837 exajoules (EJ)" ], "answer_start": [ 226 ] }

{ "text": [ "The large magnitude of solar energy available" ], "answer_start": [ 0 ] }

{ "text": [ "The United Nations Development Programme" ], "answer_start": [ 97 ] }

{ "text": [ "through reliance on an indigenous, inexhaustible and mostly import-independent resource" ], "answer_start": [ 214 ] }

{ "text": [ "the costs of mitigating global warming" ], "answer_start": [ 351 ] }

{ "text": [ "learning investments" ], "answer_start": [ 557 ] }

{ "text": [ "keep fossil fuel prices lower than otherwise" ], "answer_start": [ 395 ] }

{ "text": [ "geography, time variation, cloud cover, and the land available to humans" ], "answer_start": [ 159 ] }

{ "text": [ "areas that are closer to the equator have a greater amount of solar radiation" ], "answer_start": [ 49 ] }

{ "text": [ "photovoltaics" ], "answer_start": [ 148 ] }

{ "text": [ "during the nighttime there is little solar radiation on the surface of the Earth for solar panels to absorb" ], "answer_start": [ 361 ] }

{ "text": [ "clouds block incoming light from the sun and reduce the light available for solar cells" ], "answer_start": [ 605 ] }

{ "text": [ "solar panels can only be set up on land that is unowned and suitable for solar panels" ], "answer_start": [ 88 ] }

{ "text": [ "many people have discovered that they can collect energy directly from their homes this way" ], "answer_start": [ 240 ] }

{ "text": [ "insolation, cloud cover, and the land that is usable by humans" ], "answer_start": [ 252 ] }

{ "text": [ "1,575–49,837 EJ per year" ], "answer_start": [ 379 ] }

{ "text": [ "conversion of sunlight into electricity" ], "answer_start": [ 19 ] }

{ "text": [ "either directly using photovoltaics (PV), or indirectly using concentrated solar power (CSP)" ], "answer_start": [ 60 ] }

{ "text": [ "lenses or mirrors and tracking systems" ], "answer_start": [ 170 ] }

{ "text": [ "focus a large area of sunlight into a small beam" ], "answer_start": [ 212 ] }

{ "text": [ "photoelectric effect" ], "answer_start": [ 312 ] }

{ "text": [ "Sunlight" ], "answer_start": [ 0 ] }

{ "text": [ "Greeks and Chinese" ], "answer_start": [ 168 ] }

{ "text": [ "toward the south" ], "answer_start": [ 217 ] }

{ "text": [ "a black balloon that is filled with ordinary air" ], "answer_start": [ 19 ] }

{ "text": [ "the air inside is heated and expands causing an upward buoyancy force" ], "answer_start": [ 104 ] }

{ "text": [ "the toy market" ], "answer_start": [ 314 ] }

{ "text": [ "the surface-area to payload-weight ratio is relatively high" ], "answer_start": [ 332 ] }

{ "text": [ "driven by an expectation that coal would soon become scarce" ], "answer_start": [ 236 ] }

{ "text": [ "increasing availability, economy, and utility of coal and petroleum" ], "answer_start": [ 395 ] }