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A comment on Water compresses under a high gradient electric field. Parent comment

Re:Water compresses under a high gradient electric field by rdlecler1 on Monday July 02, 2018 @05:23PM (#17445433)
Implication: Depending on the energy input, couldn’t you create an engine from this? Sounds like a perpetual motion machine.
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Re:Water compresses under a high gradient electric field by stephengillie on Monday July 02, 2018 @05:30PM (#17445480)
This effect does convert energy from mechanical to electrical, and so could be used in a type of engine. But AFAIK there would still be inefficiencies causing this conversion to be less than 100%, and so sadly not a perpetual motion machine.
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