Once upon a time, Mel Beckman <m...@beckman.org> said: > Because the speed of light is different in different mediums. It depends on > the index of refraction. Most of the Internet is on fiber optics, and the > speed of light in glass fiber is dramatically slower than in a vacuum. Long > distance single-mode communication fiber typically has a core index of > refraction of 1.4682 at 1550nm (mid-C-band). So the speed of light in this > type of fiber is the speed of light in a vacuum 299,792,458 m/s divided by > 1.4682 = 204,190,477 m/s. You have to add to that the latency of any optical > to electrical transformations, which happens in most every router or switch. > Three days is probably an underestimate.
Uh, you do know that Voyager isn't unspooling fiber as it goes, right? -- Chris Adams <c...@cmadams.net>
