Re: My proposal for an experiment to see if it is C+v


Jan Panteltje wrote:
> On a sunny day (7 Aug 2005 15:46:58 -0700) it happened tgdenning@xxxxxxxxxxxxx
> wrote in <1123454818.743260.244950@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>:
>
> >
> >Martin Hogbin wrote:
> >> <tgdenning@xxxxxxxxxxxxx> wrote in message news:1123421423.000869.40520@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> >>
> >> > Martin Hogbin wrote:
> >> > >
> >> > > In a medium, such as air, light travels at a fixed velocity relative
> >> > > to the medium. Your experiment would therefore have a null
> >> > > result but this would prove nothing.
> >> > >
> >> >
> >> > Doesn't this also apply to lenses and mirrors?
> >>
> >> It applies any time light passes through a medium,
> >> such as a lens.
> >>
> >
> >1) Then, his experiment wouldn't work even in a vacuum.
> >2) What about mirrors? Is the reflection from a surface subject to the
> >same rule?
> It can be done without lenses and mirrors.
> See my other post.


I don't see such a post. But you seem to think that the *cause* of the
speed has something to do with subsequent effects. Say you have a block
of glass made of two side-by-side glasses with different speeds for
light. Illuminate one end. When the light emerges at the other end, do
you think the speed in air or vacuum will be different because of the
different previous speeds in the glasses---that is, the light has been
'permanently' slowed down?

-tg

.

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