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What are relation between unique describe of world and covariant law?

  1. Sep 1, 2011 #1
    If we consider have an unique external world therefor all people who want to describe this, should portray one thing.

    it seems logically that all people with different situation, either they are stationary or they move with constant speed or variable speed, describe world uniquely.

    this condition leads to the laws of physics to be the same in all different coordinate system - in General relativity, we see this but in Classical mechanics, its true only for inertial coordinate system -

    here arises a question, what are relation between unique describe of world and covariant law
  2. jcsd
  3. Sep 2, 2011 #2
    Hi sadegh4137,

    I think you've answered your own question: it depends on your point of view (your frame of reference).

    Both theories of relativity up-end the ideas of simultaneity and absolute motion.
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