Re: Simple Sagnac


"sal" <pragmatist@xxxxxxxxxx> wrote in message news:pan.2005.07.26.19.30.50.888284@xxxxxxxxxxxxx
> On Tue, 26 Jul 2005 15:04:35 +0000, Dirk Van de moortel wrote:
>
> >
> > "sal" <pragmatist@xxxxxxxxxx> wrote in message
> > news:pan.2005.07.25.15.11.10.44873@xxxxxxxxxxxxx
> >> Here's a (relatively) simple view of the Sagnac effect:
> >>
> >> http://www.physicsinsights.org/sagnac_1.html
> >>
> >> ...
> >>
> >> Comments welcome, of course!
> >
> > If I'm not mistaken, working with a moving medium, in the classical
> > treatment you apparently use a dragged, (source speed dependent)
> > signal speed u- = k - v, but in the relativistic treatment you use
> > standard undragged,
>
> No, it's dragged either way. Perhaps you missed something?

Yes, perhaps :-)
Until now, when thinking about this, I never really took
the medium into account.
It seems that I have some re-reading and -thinking to do.
And not much time :-(

[sorry for snipping - not unread though]

Dirk Vdm


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