sci.physics.electromag

On Feb 20, 7:28=A0pm, "Don Kelly" wrote:
> And how =A0does this cute little animation with weak narrative indicate
> perpetual motion? =A0Perpetual motion would be easy =A0if one could build =
a
> lossless system. So far nobody has done so. Of course, any attempt to
> extract energy would bring it to a stop in any case.

"Loss" is a subjective and arbitrary term. The first law imposes
perpetual motion by definition--even thouh scientists use the term
"persistent motion" to save face, when it comes to motors with
equipotential orbital or trajectoral transitions, such as
superconductors, geometricly frustrated [molecular] magnets, Brownian
reservories, the planets, the el=E8ctr=F2ns, etc. All of these are
lossless.

The next law is wrong in thas it claims onely open sustems can lose
entropy, when it's the other way around: Shut sustems lose entropy, as
its information is finite and its evolution thus cannot be monotonic.

-Aut