How molecule-splitting technology separates hydrogen and oxygen
A catalyst that splits water into hydrogen and oxygen may provide a way to produce hydrogen fuel.
© American Chemical Society (A Britannica Publishing Partner)
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© Open University (A Britannica Publishing Partner)Learn about the future of quantum technology.
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© Massachusetts Institute of Technology (A Britannica Publishing Partner)Learn how a benign bacterial virus can be used to improve the performance of lithium-oxygen storage batteries.
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Encyclopædia Britannica, Inc.The revolution in the automobile industry from the early years to now with greener, electric, high-technology cars.
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Public DomainBefore the Industrial Revolution, power came from three main sources: humans, draft animals, and water.
The ingenuity people used in harnessing waterpower can be seen in this medieval-style mill. The waterwheel is turned by a stream and is connected to a shaft that leads into the building. At the other end of the shaft is a gear. The connection of a series of gears translates the power from the stream to a shaft that drives a millstone, which grinds flour from grain.
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