----- Original Message ----- From: OrionWorks <[email protected]> Date: Tuesday, May 5, 2009 4:28 pm Subject: Re: [Vo]:Latest from Mylow
> Terry Sez: > > > Lenz effect: > > > > http://en.wikipedia.org/wiki/Lenz's_law > > > > If anything, it will impede the motion of the motor. > > Indeed, methinks that's a logical assumption. I was looking at the > same Wiki link. > > Nevertheless, the alnico magnets are slowly demagnetizing. My > suspicion is that the magnetic interactions with the aluminum disk is > the primary reason for the slowly degenerating strength of the alnico > magnets. > > An obvious way to test this hypothesis would be to replace the > aluminum disk with a non-magnetic material, like Derlin. My bet is > that a Derlin disk variation would result the following observations. > > 1) The disk will no longer rotate. > 2) The alnico magnets will no longer demagnetize. > > ...what they might say in the trade as a "trade off" of benefits. ;-) > > Do you think your group might be able to test this hypothesis? > > Regards > Steven Vincent Johnson > www.OrionWorks.com > www.zazzle.com/orionworks > One might also trying using the plastic disk with and without a layer of aluminium foil. Harry
