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Debate:Why is a perpetual motion machine impossible? (view source)
Revision as of 02:05, April 8, 2007
, 02:05, April 8, 2007no edit summary
:*I do think that the second law of thermodynamics states "The total entropy of any isolated thermodynamic system tends to increase over time, approaching a maximum value.", which essentially means that every closed system will eventually lose the potential for energy until it will reach the closest it can reach above absolute zero without actually reaching it (reaching absolute zero violates the third law). I personally have no idea as to whether this means perpetual motion is impossible - although it does essentially mean a practical application for perpertual motion is, as the energy released would be so insignificant that it could not be put to any forseeable use -- [[User: ShikamaBlue|Shikamablue]]
:*I do think that the second law of thermodynamics states "The total entropy of any isolated thermodynamic system tends to increase over time, approaching a maximum value.", which essentially means that every closed system will eventually lose the potential for energy until it will reach the closest it can reach above absolute zero without actually reaching it (reaching absolute zero violates the third law). I personally have no idea as to whether this means perpetual motion is impossible - although it does essentially mean a practical application for perpertual motion is, as the energy released would be so insignificant that it could not be put to any forseeable use -- [[User: ShikamaBlue|Shikamablue]]
* It is possible to establish a flow of current in a superconducting ring forever, but that's all you get, and if you draw some of the current off to do useful work, there's just less in the ring. [[User:Teresita|Teresita]] 22:05, 7 April 2007 (EDT)