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Translation of matter?

  1. Jul 10, 2005 #1
    Let's say you have a metal rod in space that is 2 light seconds long. If you push one end of the rod, would they other end move 2 seconds later?
  2. jcsd
  3. Jul 10, 2005 #2


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    It would take a LOT longer than that, since the signal could only travel at the speed of sound in the material.
  4. Jul 10, 2005 #3


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