Re: Is the speed of light really constant ?
From: Bruce Richmond (bsr3997_at_my-deja.com)
Date: 09/20/04
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Date: 19 Sep 2004 19:53:46 -0700
"Mich" <mich@efni.com> wrote in message news:<10kqvt6hjnr0j70@corp.supernews.com>...
> joseph levy <josephlevy1@compuserve.com> wrote in message
> news:cii0t6$o1p$1@ngspool-d02.news.aol.com...
> > We now know that the speed of light is not really
> > constant.
>
> As a layman, my understanding is very shallow.My difficulty with the
> invariable speed of light lies in the fact that an observer seeing a distant
> light source(star), can immediately change the light's frequency of the
> source by changing his/her frame of reference relative to it(star). I fail
> to see how this can change the light's frequency without claiming a change
> in the light's speed.
>
When changing frames of reference you are also changing coordinate
systems. Each coordinate system is constructed based on the speed of
light being c in that frame. The change in frequency tells you that
there has been a change in relative motion, but it tells you nothing
about the speed of the light.
> > It is erroneously found to be constant because of
> > three kinds of systematic measurement distortions
> > entailed by length contraction, clock retardation,
> > and arbitrary clock synchronization.
> > The Lorentz transformations, connect coordinates
> > altered by these distortions. After correction of these
> > the real transformations are disclosed, and the exact
> > value of the speed of light is brought to the fore.
> > The complete demonstration of these results is
> > given in the book "From Galileo to Lorentz and
> > beyond", reviewed and agreed by Pr J.P Vigier
> > Laboratory of relativist gravitation and cosmology,
> > University of Paris VI. Available at the publisher's
> > Apeiron web site http://redshift.vif.com, or at
> > Amazon, http://www.amazon.com
> > Your comments are wellcome,
> > Best regards,
> > Joseph Levy (Ph.D)
> >
> >
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