Re: A little challenge for relativists.

O'Harry wrote:

> I don't think that the PoR in
> itself can lead to an invariant speed (it didn't in the time of Newton), for
> that at least one additional assumption is needed.

In the case of Galilean Relativity, the invariant speed c is
infinite, so the relativity principle did in fact lead to an
invariant speed in Newton's day, though it's easy to see why the
significance of this *mathematical fact* was not appreciated at
the time. Dirk Vdm gave a nice link to a proof of this several
days ago. Section 10.8 of
http://www.courses.fas.harvard.edu/~phys16/Textbook/ch10.pdf


---Tim Shuba---
.

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