why is it impossible to create a perpetual motion machine?

chiselbitdog · #1 03-07-2007, 08:55

eelfins · #2 03-07-2007, 09:06

The conservation of energy law. Perpetual motion is possible only if there is no friction (i.e. no energy loss, like the turning of the earth in frictionless space). However, if the machine is supposed to transfer energy to somewhere else, it will take energy away from the motion of the machine, slowing it down.

Michel N · #3 03-07-2007, 09:16

Who told you it's impossible?!It is possible to create a perpetual motion machine if you can just avoid all the non conservative forces acting on this machine.nacouzi_michel@yahoo.com

Ahmed · #4 03-07-2007, 09:25

It's only due to friction. If you can find a way to eliminate (not reduce) friction, then you'll get your machine.

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