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System and environment

  1. Jul 21, 2013 #1
    in classical physics, we can decompose world into system and environment.
    is it true in content of gravity?
    it seems in general relativity we have a global theory!
  2. jcsd
  3. Jul 21, 2013 #2


    Staff: Mentor

    The decomposition into system and environment is basically just a completely arbitrary labeling.
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