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Thread: Gravity

  1. #1 Gravity 
    Forum Professor leohopkins's Avatar
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    If Gravity is due to the effect of curvutre of space-time due to mass then.......shouldnt smaller objects have stronger gravity ? (as their curvature is curved tighter?)


    The hand of time rested on the half-hour mark, and all along that old front line of the English there came a whistling and a crying. The men of the first wave climbed up the parapets, in tumult, darkness, and the presence of death, and having done with all pleasant things, advanced across No Man's Land to begin the Battle of the Somme. - Poet John Masefield.

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  3. #2  
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    I think you may have been looking at the formula upside down as it were - space curvature due to gavity is proportional to mass...


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  4. #3 okay..... 
    Forum Professor leohopkins's Avatar
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    Okay, so what you are saying is that the curvature of space time is due to gravity (which is proportional to mass)

    So what IS gravity; where does it come from ? What creates it ?
    The hand of time rested on the half-hour mark, and all along that old front line of the English there came a whistling and a crying. The men of the first wave climbed up the parapets, in tumult, darkness, and the presence of death, and having done with all pleasant things, advanced across No Man's Land to begin the Battle of the Somme. - Poet John Masefield.

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  5. #4  
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    Now if only I knew the answers to those questions I'd get a nobel prize, that is - nobody knows! so you are free to speculate upon what gravity is (but please only in psuedo-science if you intend to propose another theory). :wink:
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  6. #5 planet rotation speed effects form 
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    I had a similar theory, that the speed a planet rotates effects the form of living creatures as it does on land form.

    On a slower rotating planet we as humans may be elongated at points like the nose. Are there any precedents of this theory?
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  7. #6 Gravity 
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  8. #7  
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    I came across an ingenious pseudo-scientific theory of gravity once. It is not correct, of course, so maybe this belongs in the pseudo-science section.

    According to its creator, the theory is based on forces from particles created by vacuum energy. Vast amounts of particles pop into existence all the time, but interact weakly with normal matter, mostly passing straight through. However, there are so many of these particles that they exert a 'pressure' on matter.

    Essentially the whole universe is full of these particles coming from every direction, creating a pressure on all matter.

    Normally this pressure is balanced, since the particles come from all angles. However, massy objects can change this. The weak interaction reduces the number of these particles coming through the massy object (like a planet), and anything close to the planet is then subject to an imbalance of particle induced pressure. More pressure from opposite to the planet, since there are now more particles from this direction. Thus a net force pushing the object towards the planet - gravity.

    The bigger or denser the planet, the more the number of particles removed, and the greater the resultant net force - the greater the gravity.

    One problem with this theory is that the hypothetical particles would also have to act on photons, which seems unlikely.

    There are other problems with this theory. So maybe it might provide a moment's diversions for other people to figure out what they are.
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  9. #8 Gravity 
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    Thatís kind of on the same line only I am not talking about particles Iím talking about time itself collapsing in as a sphere. It is also a very weak force but builds up fast as each encapsulation collapses in at the speed of light. Collapsing time not only effect photons it helps create their perpetual motion. Energy traveling in positive time at fast enough rates has the ability to circumnavigate along the inside of a collapsing sphere of time. This causes a rotation the rotation creates a separation between expanding time and collapsing time at its axis because the equator is traveling greater distances through time. This creates magnetism. A photonís energy into positive time is at the right rates to mimic a small electric motor as time collapses in and expands out. It has no charge because negative collapsing time and positive expanding time cancel each other out in each moment of time. As time collapses in it does not speed up it is the same moment of time throughout the process. Sorry Iím talking more about wavelengths than gravity. They are all connected you know.
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  10. #9 Re: Gravity 
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    Quote Originally Posted by leohopkins
    If Gravity is due to the effect of curvutre of space-time due to mass
    Space is literally nothing, defined only by what occupies it. Time is merely change at a predicted rate. You can no more curve space with gravity travelling through it than you can heat space with infra-red radiation travelling through it. This concept came about from people who live in maths world and have trouble relating to the real world.
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  11. #10  
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    Really ??

    If there was no mass/energy would there be space/time??
    ie. Could you have an 'empty' universe ? Or do you need some substance to it ??
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  12. #11  
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    Since everyone seems to agree that the universe had a beginning (big bang) then there must be an edge of the universe. Beyond that there would be nothing and therefore no space or time. Beyond the universe it isn't empty space, it is no space at all.
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