Reference Terms
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Coal
Coal is a fossil fuel extracted from the ground by underground mining or open-pit mining (strip mining).
Note: The above text is excerpted from the Wikipedia article "Coal", which has been released under the GNU Free Documentation License.
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Matter & Energy News
December 12, 2024
Dec. 11, 2024 An interdisciplinary team has created tiny bubble-like microrobots that can deliver therapeutics right where they are needed and then be absorbed by the ...
Dec. 4, 2024 Since the 1960s, scientists who study X-rays, lightning and similar phenomena have observed something curious: In lab experiments replicating these occurrences, electrons accelerated between two electrodes can be of a higher energy than the voltage ...
Dec. 2, 2024 A theoretical study suggests that small black holes born in the early universe may have left behind hollow planetoids and microscopic tunnels, and that we should start looking within rocks and old ...
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Dec. 2, 2024 A new collection of published papers offers the most detailed and comprehensive breakdown yet of how water injected into the Permian Basin during oil ...
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Dec. 12, 2024 Diverse and inclusive teams are not merely a moral imperative but also a catalyst for scientific excellence in robotics, scientists point out in a study. The team has outlined how a scientific ...
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Dec. 12, 2024 Ferrocene is a key molecule for developing molecular machines. However, it readily decomposes on the surface of flat noble metal substrates, marking ...
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