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Is it possible to conserve gravity ?

  1. Jul 20, 2009 #1
    Is it possible to conserve gravity ??

    Is it possible to conserve gravity ??

    If mass is from gravity and that mass is a form of energy which ..both the mass and the energy ..can be conserve ..then can the gravity also be conserve.??

    How can you tell that a certain variable is conserved?
     
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  3. Jul 20, 2009 #2

    Lok

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    Re: Is it possible to conserve gravity ??

    Yes. I'm conserving my gravity all the time.
     
  4. Jul 20, 2009 #3

    vanesch

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    Re: Is it possible to conserve gravity ??

    "Conservation of gravity" is not something which has a clear meaning (or any meaning at all in fact) in known physics. There is, as you say, conservation of energy, or mass-energy if you want, conservation of charge, and still a lot of other conservation laws, but "conservation of gravity" doesn't seem to make much sense.
    The reason for that is that "conservation" means something very precise in physics: it means that a quantity remains "the same" (or equivalent) for a given system if that system evolves over time. However, "gravity" is not a specific quantity. It is an entire theory, or an interaction if you want to. It is not a number, or another mathematical quantity such as a vector. So one wouldn't really know what it would mean, if "gravity were conserved", except in a kind of colloquial way like "the theory of gravity is conserved over the centuries" or something of the kind.
     
  5. Jul 20, 2009 #4

    negitron

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    Re: Is it possible to conserve gravity ??

    I think by "gravity" he means specifically G x m, which is as far as anyone can tell, a conserved quantity.
     
  6. Aug 4, 2010 #5
    Re: Is it possible to conserve gravity ??

    yes if there is gravity field it would be conserved, makes sense to me
     
  7. Aug 5, 2010 #6
    Re: Is it possible to conserve gravity ??

    Well, gravity is a conservative force. The only force I can think of that isn' conservative is friction.
     
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