2/23/2012
Perpetual Motion Machines
Perpetual motion describes hypothetical machines that produce more work or energy than they consume, whether they might operate indefinitely or not. There is undisputed scientific consensus that perpetual motion in a closed system would violate the first law of thermodynamics and/or the second law of thermodynamics. So, are perpetual motion machines possible or not? The best way to be sure is to build one.
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