Semi-on-topic: Light that travels faster than the speed of light?

Fri Aug 26 14:44:47 UTC 2005

On Mon, Aug 22, 2005 at 01:31:36PM -0600, Steve Meuse wrote:
>    On 8/21/05, Peter Dambier <[1]peter at peter-dambier.de> wrote:
>      I have had a look into one of my microwave books. I have seen in
>      coax cables the speed of lite drop to 90% or 80% depending on the
>      insulator, the dielectric.
>
>    I believe this is referred to as "velocity factor".

Not the speed of light; the speed at which the electromagnetic
wavefront travels through *that* conductor.  Yep; this is velocity
factor.  It can go down surprisingly far.

Cheers,
-- jra
-- 
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