ATM (was Re: too many routes)

Mon Sep 15 14:31:06 UTC 1997

Susan R. Harris wrote:
> > Photons propagate at 0.65c in fibre - the exact speed does vary
> > depending on whether its single or multimode fibre.  
> 
> Hi Geoff - not to reveal my ignorance or anything, but ... is that 65
> degrees celcius? 
> 
> > The equivalent EMR propagation speed in coppr is 0.75c
> 
> What is EMR?

Electro-Magnetic Radiation.

The velocity will vary +/- ~10% depending on the type of material for the 
dielectric and dimension of the transmission line.

Tim
-- 
  Snail: Tim Pozar / LNS / 1978 45th Ave / San Francisco CA 94116 / USA
               POTS: +1 415 665 3790  Radio: KC6GNJ / KAE6247
"It's a damn poor mind that can only think of one way to spell a word."
			- Andrew Jackson
"What is wanted is not the will to believe, but the will to find out, 
        which is the exact opposite." -- Bertrand Russell