speed of light

from WordNet (r) 3.0 (2006)
speed of light
    n 1: the speed at which light travels in a vacuum; the constancy
         and universality of the speed of light is recognized by
         defining it to be exactly 299,792,458 meters per second
         [syn: {speed of light}, {light speed}, {c}]
    
from Jargon File (4.4.4, 14 Aug 2003)
speed of light


   The absolutely fastest a particular algorithm or application could be
   implemented, given a set of constraints that are assumed to be
   unchangeable. For example, "This would take 60 microseconds without
   any processing whatsoever, so that's the speed of light." However, as
   one brilliant hacker once commented: "Remember that the speed of light
   only is constant if you can't redesign the universe."
    

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