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Gravity is different

  1. Nov 14, 2011 #1
    From Greene's pop science book 'The hidden reality', I got this:

    Could someone explain that I bit further? Why and how is in the gravitational field an arbitrarily large amount of energy stored?

    What about the potential energy of the two approaching particles, does it not decrease, while the kinetic energy increases?

    Why does the same logic from above does not apply to the em, weak and strong force?

    Greene says this arbitrary gravitational energy supplied the early universe the necessary energy to inflationary expand. How?

    Where else does that 'endless energy feature' of gravity show up, especially when we try quantizing gravity?

    thank you
  2. jcsd
  3. Nov 18, 2011 #2


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    Since this is about gravity, why not ask it in the relativity forum?
  4. Nov 18, 2011 #3
    Yeah, if some demigod of this forum would be so kind and send my thread there...

    EDIT: I just post it there again by myself.
    Last edited: Nov 19, 2011
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