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Thread: Need name of a theory.

  1. #1 Need name of a theory. 
    Forum Ph.D. Raziell's Avatar
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    Note that english isnt my first Language and my knowledge of physics are amateur at best.

    The idea that the gravity isnt a pulling force but a pushing force from space preasure or whatever one would call it, what is this theory called again?

    Take your arm and hold it out. Now consider that gravity isnt pulling your arm down. But the pressure of space pushing it down.

    If space holds the slightest mass nomatter how miniscule, then the universe would be like "water"? If you have a water baloon in weightless space with an egg in it, then if that egg is automatically kept in the middle/core, then it proves that is how gravity actually works or?

    I was wondering what this is called.


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  3. #2  
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    Just a note....even if you place an object 1 inch above the ground as opposed to 10 miles above the ground, the downward pressure on it will be no different. In other words, its not the quantity of atmosphere under it that matters, its the quality.

    Your theory reminds me of such a system....in other words, it is unreasonable under this context. I am willing to bet that no matter how you take such a theory, it is very unlikely to ever work out and not create unsolvable contradictions. You can try though...I have found that attempting to solve/design impossible systems can teach you much about the factors involved.


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    Forum Radioactive Isotope MagiMaster's Avatar
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    Quote Originally Posted by Cold Fusion
    I have found that attempting to solve/design impossible systems can teach you much about the factors involved.
    As long as one accepts the impossibility of the thing in the end. A lot of cranks get started when they refuse to accept that, even when it becomes really obvious. (The OP doesn't sound like such a person though.)
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  5. #4  
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    It's been called "push gravity," "shadow gravity" or "LeSage gravity" and has been pretty well discredited.
    http://en.wikipedia.org/wiki/Le_Sage's_theory_of_gravitation
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  6. #5  
    Forum Radioactive Isotope MagiMaster's Avatar
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    Man I wish I knew about that theory when I was arguing against one of the crazy theories on this site a long time ago.
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  7. #6 Shad Grav 
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    How would you prove that theory to be false? Surely pushing something one way is the same as it being pulled from the other?
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  8. #7  
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    I first heard of the theory on an episode of "Friends". Ah, Phoebe introduced it. The season though, of the episode, I cannot recall. In terms of push-pull mechanics, your question pertains to the source of the gravitational force. It's hard to think matter is vomitted out from nothing, as a push, as philosophers could have too much to say about the maker.
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  9. #8 Re: Need name of a theory. 
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    Quote Originally Posted by Raziell
    Take your arm and hold it out. Now consider that gravity isnt pulling your arm down. But the pressure of space pushing it down.
    On earth you get held in place both by gravity, and atmospheric pressure (the weight of the air (atmosphere) above you).
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    The atmospheric pressure actually counteracts gravity - according to Archimedes' Flotation Principle - because we're totally immersed in a fluid: the air. Is this true?
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  11. #10  
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    Quote Originally Posted by The Foot Tapper
    The atmospheric pressure actually counteracts gravity - according to Archimedes' Flotation Principle - because we're totally immersed in a fluid: the air. Is this true?
    Only if you have a lower density than the surrounding fluid.

    In water it's true, because you float. In air it isn't.

    If you're deep under water you get squashed, so there it isn't true either.

    ... It does slow your descent in all circumstances.
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  12. #11  
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    Actually, you weigh a little bit less than you would in a vacuum, because of your buoyancy in air. The difference would be the weight of the air displaced.
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