Submitted by Vall on Tue, 2014-03-18 17:39
What do they mean by "magnetic wire" exactly? I was under the impression that tesla doesn't use rare earth magnets, or any magnets for that matter, in the motor, and the magnetic field is created by current flowing through copper windings both in the stator and rotor. Is there a magnetic core to the windings, or is it just ferrous metal (like iron). I would feel pretty dumb if they actually used magnets, as I have been telling people that tesla AC induction motors don't use rare earth magnets, so no dependency on china for that, and no environmental damage from mining neodymium.