Re: Article: A Century of Einstein
From: Tom Roberts (tjroberts_at_lucent.com)
Date: 08/31/04
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Date: Tue, 31 Aug 2004 08:34:11 -0500
Gregory L. Hansen wrote:
> In principle, I
> think it must be possible to derive a theory of electromagnetism from
> Coulomb's law, Galilean relativity, and that postulate that I always
> forget. It wouldn't be Maxwell's equations. It also wouldn't be an
> aether theory, since Galilean relativity doesn't have an absolute rest
> frame.
You'll just get a mess, with no resemblance to electromegnetism at all.
In particular, this gives no way to obtain anything resembling
magnetism. In classical electrodynamics and SR, there are two key
concepts here:
1. the EM field is a 2-form field, not a vector field
(or a pair of vector fields)
2. the manifold is spaceTIME
Without both of those you have no hope, AFAICT....
Tom Roberts tjroberts@lucent.com
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