Re: speed of light

[Joseph Bellina <jbellina@SAINTMARYS.EDU>]

As I recall one of the old PSSC (maybe) single concept films on wave
pulses showed an event similar to this.

cheers

On Wed, 6 Oct 1999, brian whatcott
wrote:

> > > Has anyone looked for a reflected supernova flash off adjacent
> > > stellar objects? (It would have to be a glancing reflection,
> > > I imagine if one had the ..er.. 1988 event in mind?)
> At 17:11 10/6/99 -0700, you responded:
>
> > As the light from the SN1987A event expands in a spherical shell
> > it illuminates the surrounding interstellar medium. By doing the
> > geometry* (and trigonometry) on what should be seen at Earth of
> > this reflection nebula you will see that an expanding circle of
> > illumination should surround the star....
> > Neat, eh?
> >
> > Leigh
> >
> > *Think about a sphere and an ellipsoid with the Earth at the
> > other focus. Near the supernova the ellipsoid is
> > indistinguishable from a paraboloid, but you will see a pretty
> > neat geometry.
>
> Neat.
> If one takes the imaginary leap to an elastic membrane model
> depressed with ponderous mass on the supernova's origin,
> the ellipsoid of revolution for the perceived wavefront starts
> to become capable of strange things, like demonstrating
> superluminal velocity at angles removed from the straight
>  ..er..helter-skelter shot.
> (or so one can muse, over a glass of sherry)
>
>
>
>
>
> brian whatcott <inet@intellisys.net>
> Altus OK