Names of Allah

Tuesday, February 15, 2011

Invariant speed

The invariant speed or observer invariant speed is the speed an object or particle must be traveling at for its speed to have the same measure in all reference frames. The invariance of the speed of light is a consequence of the postulates of special relativity, and the terms speed of light and invariant speed are often considered synonymous. In non-relativistic classical mechanics, or Newtonian mechanics, the existence of an invariant speed is ignored (the only invariant speed predicted by Newtonian mechanics is infinity)

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