15 Sep
1997
15 Sep
'97
9:08 a.m.
SWAGs from another corner embedded below. "Susan R. Harris" wrote on 15-Sep-97 at 08:46:24 -0400, in part:
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?
No, it is not on the thermometer. It is the speed of light. As in E=mc**2.
The equivalent EMR propagation speed in coppr is 0.75c
What is EMR?
Electro Magnetic Radiation. Later, Ken