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The mass of an object warps/bends/disturbs spacetime. But does the

  1. Jul 29, 2010 #1
    The mass of an object warps/bends/disturbs spacetime. But does the active warping/bending of spacetime create mass/energy?
     
  2. jcsd
  3. Jul 29, 2010 #2
    Re: Spacetime

    Yes. From the Einstein field equations the cause of having a non-vanishing curvature of spacetime is a non-zero energy-momentum tensor which demonstrates the presence of matter and gravitational fields (the latter would not be always the reason for having a curved spacetime).

    AB
     
  4. Jul 29, 2010 #3
    Re: Spacetime

    One does not go without the other. Who knows, perhaps they are the same thing.
     
  5. Jul 29, 2010 #4
    Re: Spacetime

    "Creates" is different from "goes together with". I think the last is more appropriate with mass and bending. What else than mass can bend spacetime? So if you create more mass, by turning energy into mass, then you create more bending.
     
  6. Jul 30, 2010 #5
    Re: Spacetime

    How does entropy affect spacetime? Is this a fair statement to make...'If entropy is a measure of disorder, than as the disorder of a system increases spacetime flattens?'
     
  7. Jul 30, 2010 #6
    Re: Spacetime

    In local regions less momentum and energy density will mean less curvature, but as a whole the universe wouldn't flatten as a result.
     
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