Michel Jullian wrote: > Good point, it would make it unidirectional, if not necessarily > self-starting (dynamic friction is lower than static friction). So any > magnetic field at play must be self generated. > > I wonder, would a ball put across two horizontal, static and > concentric circular rails rotate by circulating current through it via > the rails? If it did, this would invalidate your theory wouldn't it?
Would violate COAM too if I understand what you're proposing. So, no, it wouldn't rotate. > > Michel > > 2009/8/24 Stephen A. Lawrence <[email protected]>: >> >> Michel Jullian wrote: >>> There may be another cause for a net B field through the ring: the >>> Earth's. (apologies if this was mentioned before, haven't followed the >>> discussion closely) >> Too weak to be significant, almost certainly, but more to the point a >> fixed field through the ring would make the motor unidirectional and >> self-starting. It's neither. >> >> > >

