On Oct 23, 2004, at 12:53 AM, No Religion wrote: >> Except of course that electrons don't actually spin around atoms in >> anything resembling a circle :-( I though permanent magnetism was a >> result of the electon spins on their own axis, > > An electron spinning on its own axis (i.e. rotation instead of > revolution) > shouldn't produce any magnetic field, since the electric field around > the > electron (that itself creates) won't "vibrate", assuming an electron > produces a perfectly spherical electrical field around itself, of > course > Well, the freshman physics book still talks about permanent magnetism being caused by the orbits of electrons, even though the freshman chemistry text is very insistent on demolishing "orbits"... So I guess we can say that even non-circular orbits have a circular component, or perhaps magnetic materials are the ones whose outer electrons are in fact in somewhat circular shapes... subatomic particle spin does NOT appear to enter into it... BillW _______________________________________________ http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist