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Line 5: − Those who deny that entropy is always increasing, even in closed (and isolated) systems, are left without a persuasive argument that the second type of perpetual motion machine described above is impossible.+
Perpetual motion machine (view source)
Revision as of 15:42, January 3, 2007
, 15:42, January 3, 2007Reworded the last paragraph to say basically the same thing without implying the truthfulness of the 2nd law argument
Another type of perpetual motion machine simply uses its initial energy to remain in motion perpetually. It is more difficult to prove that this is impossible, but it might violate the [[Second Law of Thermodynamics]]. If entropy is always increasing, even in closed (and isolated) systems, then indefinite motion is impossible because an increase in the disorder of the system will inevitably disrupt the motion.
Another type of perpetual motion machine simply uses its initial energy to remain in motion perpetually. It is more difficult to prove that this is impossible, but it might violate the [[Second Law of Thermodynamics]]. If entropy is always increasing, even in closed (and isolated) systems, then indefinite motion is impossible because an increase in the disorder of the system will inevitably disrupt the motion.
This argument is the only evidence against this type of machine.