Proper Length

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See: Proper, Length, Proper Time.

References

  • (Wikipedia, 2009) ⇒ http://en.wikipedia.org/wiki/Proper_length
    • In relativistic physics, proper length is an invariant quantity which is the rod distance between spacelike-separated events in a frame of reference in which the events are simultaneous. (Unlike classical mechanics, simultaneity is relative in relativity. See relativity of simultaneity for more information.)
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