What creates gravity
[From: ] [author: ] [Date: 11-07-09] [Hit: ]
The only person I know of that MIGHT be able to answer it would be Michio Kaku, a famous professor of theoretical science in New York City. (You may have seen him on his TV shows on science.) - See: http://en.wikipedia.org/wiki/Michiu_Kaku… You can also find info at http://en.......
If you drop something - say a pencil - it's much smaller mass is attracted to the much larger mass of the Earth.
But how does a mass cause gravity? (Yes, this is your real question.) I don't know of anyone that can answer that question so you - or I - can really understand it. The only person I know of that MIGHT be able to answer it would be Michio Kaku, a famous professor of theoretical science in New York City. (You may have seen him on his TV shows on science.) - See: http://en.wikipedia.org/wiki/Michiu_Kaku… You can also find info at http://en.wikipedia.org/wiki/Gravity
Many scientists are doing research on exactly what is gravity in an effort to more fully understand it.
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Very great questions, I love when people ask things like this because these things are actually what scientists are doing research on right now!!! Okay so there is a theory that gravity is caused by a particle called a graviton, it has not been found yet. The particle would have to be massless and could be detected in particle accelerators but has not been yet so... no one knows what makes gravity, they just know how to describe what it does. Now I dont know the exact time scale on this but sometime after the big bang hydrogen was created. In stars like our sun, it gets its energy from the fusion of hydrogen to form helium. Then once all the hydrogen is used up, helium is fused to make lithium, and so on but it doesnt go very far because the star gets too heavy and can collapse on itself which produces so much energy it can produce the heavier elements.... So atoms come from the life of stars... pretty neat
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You probably won't like this answer but gravity is simply a law of nature that explains the interaction between masses. Asking why there is gravity is the same as asking why is light travels in waves or why there are planets and a universe at all. The answer to that question has more to do with metaphysics then physics itself.
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To give an answer to a question that isn't a joke, there needs to be a disclaimer: We don't fully know.
One of the main theories at this point is called "String Theory". It states that all stuff in the universe (stuff being a broad term) is made of small strings of vibrating energy. These make up everything in the universe. Among the list of things here is "gravitons" http://en.wikipedia.org/wiki/Graviton.
Again: Hypothetical and Theoretical and Quantum Mechanical.
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gravitational pull from the sun
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F*cking magnets.
