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Q & A: Possible perpetual motion machine?

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Most recent answer: 09/10/2010
Q:
if i were to stick a metal chain through a bunch of wire coils and attach a motor to the chain and attach all the coils to the motors could i make perpetual motion? I doubt it
- Anonymous
A:
I agree with you, I doubt it.   Perpetual motion machines have been invented and shown not to work for centuries, starting in the 8th. Hundreds have been contrived.  Even Leonardo da Vinci had a go at it.  The possibility has been disproved both by experimental testing and by theoretical analysis.   The main bugaboo is the second law of thermodynamics.  See the nice article  for some amusing attempts.

LeeH

(published on 09/10/2010)

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