3 ms·

Electrical signals don't travel at the speed of light, but your argument is still valid.

• jaytaylor 9y ago
  Actually, they very nearly do. The speed of electricity in a 12-gauge copper wire is 299,792,458 meters per second x 0.951 or 285,102,627 meters per second. This is about 280,000,000 meters per second which is not very much different from the speed of electromagnetic waves (light) in vacuum.
  • tlb 9y ago
    Not wires across silicon, which have higher capacitance and much higher resistance. For millimeter-long connections you might get 1/10 of C, ie 33 ps/mm instead of 3.3.
    • jaytaylor 9y ago
      Hey, that's actually really interesting, thanks for the followup! This corroborates what you're saying: https://www.reddit.com/r/askscience/comments/204hl2/at_what_speed_do_electrons_move_around_inside_of/ https://www.reddit.com/r/askscience/comments/204hl2/at_what_...
    • deepnotderp 9y ago
      Transmission line signalling can get near speed of light in silicon. But it has its own issues :)
  • deleted 9y ago
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