> From: "David Roberson" <dlrober...@aol.com> > Sent: Sunday, April 14, 2013 3:49:20 PM > > I am having a difficult time judging the amount of energy stored in > these magnets. I recall almost having a finger removed when holding > a piece of steel near a powerful rare earth magnet. The force > attracting the metal was very large and worked against my muscle > power. I do not know how many joules of energy were released by the > magnet as it drew the steel near to itself, but it was significant. > I assume this process could be repeated many times with additional > pieces of steel until the field was hidden within the metal mass.
Force x distance = work. > If you take that amount of energy and multiply it by the number of > magnets in the device, you obtain a fairly large amount of energy. I > would certainly expect this amount of available energy to be capable > of overcoming the losses due to friction in bearings for a very long > time. The energy extracted by a fan would need to be handled as > well. I am not suggesting that the Yildiz motor is a fraud, but I > suspect that there may be another explanation for its performance > that is more "down to earth". :-) That's just potential energy. When you pull the magnets apart you add it, when they return they deliver it. Nothing to do with what's stored IN the magnet. And even that isn't destroyed if you "demagnetize" the magnet -- you just get the domains pointing in different directions. I suppose degausing requires some sort of energy budget.
