2006-08-14 03:03:04 · 5 answers · asked by Matthew B 2 in Science & Mathematics ➔ Mathematics
299,792 458 meters per second or 1,079, 252 848.8 Km/h
In a vacuum in imperial units the speed of light is approximate 186 282 394 miles per second.
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en.wikipedia.org/wiki/Speed_of_light
2006-08-14 05:19:44 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
In either case, at a substantial fraction of the velocity of light. It is slightly slower in fiber optic cables -- get the exact speed by dividing the speed of light by the refractive index of the fiber at the wavelength being used. Typical refractive indices are about 1.5, so transfer speed is on the order of 200,000 km/sec.
2006-08-14 10:08:49 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Through wires and cables, speed is generally limited to a few Gigabits/second.
Optical fibers routinely carry 15 to 20 Gigabits/s and it's gonna go up pretty soon.
Doug
2006-08-14 10:13:15 · answer #3 · answered by doug_donaghue 7 · 0⤊ 0⤋
Information transfer rates are limited by noise and bandwidth. The theoretical bound is calculated by Shannon's Channel capacity theorem.
2006-08-14 10:17:14 · answer #4 · answered by lenny 7 · 0⤊ 0⤋
18.5 miles per milisecond
2006-08-14 10:06:57 · answer #5 · answered by Anonymous · 0⤊ 0⤋