Re: Superluminal information transfer paradox
From: Ken S. Tucker (dynamics_at_vianet.on.ca)
Date: 02/05/05
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Date: 5 Feb 2005 01:25:41 -0800
Tom Roberts wrote:
> Bilge wrote:
> > Tom Roberts:
> > >"c" is indeed the speed of light. And the local symmetry of
spacetime
> > >determined by the Einstein field equation.
> >
> > In that case, was there a different value for the propagation of
> > gravitational interactions, i.e., c_g?
>
> c_g = c, because light propagates along the local symmetry of
spacetime.
Tom, given the Shapiro Effect (global) on
EM propagation rate, due to gravitation, you
need to understand that for photons in a
g-field, there is a big diff between
0 = g_uv dx^u dx^v
and
dx^i/dt = C =/= c .
Ken
> Tom Roberts tjroberts@lucent.com
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