What's perpetual machines??
Ultra legends be like..xd
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the ejection of electrons from a solid by an incident beam of sufficiently energetic electromagnetic radiation. 2 any phenomenon involving electricity and electromagnetic radiation, such as photoemission.
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Perpetual motion is the motion of bodies that continues forever. A perpetual motion machine is a hypothetical machine that can do work infinitely without an energy source. This kind of machine is impossible, as it would violate the first or second law of thermodynamics.
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