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Gravity/conservation of energy?

  1. Nov 21, 2007 #1
    If gravity is warped space time, and potential/kenetic energy can be derived from gravities effect on mass, apparently without exhausting any energy, how can conservation of energy hold true?
    I'm not arguing in any sense, i just really don't get it.... NEone?
  2. jcsd
  3. Nov 21, 2007 #2

    Chris Hillman

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    This is a FAQ, asked on average every week here.

    Localization of gravitational field energy, and "gravitational potential energy", are very tricky concepts in gtr, for mathematical reasons. See the discussion in MTW, Gravitation or other good textbooks.
  4. Nov 22, 2007 #3


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    The usual FAQ oriented towards the layperson is at http://math.ucr.edu/home/baez/physics/Relativity/GR/energy_gr.html

    Here's a very short quote from the introduction:

    I'll encourage interested people to read the original in its entirety (due to copyright and other reasons, it's not appropriate to repost it, but to rerfer people to the original).
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