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Re: Semi-on-topic: Light that travels faster than the speed of light?
- From: Jay R. Ashworth
- Date: Fri Aug 26 10:46:29 2005
On Mon, Aug 22, 2005 at 01:31:36PM -0600, Steve Meuse wrote:
> On 8/21/05, Peter Dambier <firstname.lastname@example.org> 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.
Jay R. Ashworth email@example.com
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