How Gravitational force works?

Question

What are the leading theories of Gravitations. We know that two objects in space attract each other. But my question is about why?

1. as per quantum mechanics it is supposed to be 'gravitons', if this is the case, does it mean every object keeps emitting gravitons in all directions and when gravitons interact they tell the objects to move towards each other?

2. If we go by einsteins approach gravity is function of space-time-curvature right, if thats the case how does it work?

Answer 1

Secret of Gravity

WHAT IN THE WORLD CAUSES THE GRAVITY FORCE?

When I was a child I would leap from the couch knowing that my magic cape would carry me over the city and countryside. Such is childhood; gravity is conquered by a cape. But falling to the floor never failed. Why did I fall? As we get older we stop asking the basic questions about how things work in our Universe, and take falling as the norm. Were the ancient Greeks right? Is down the natural state of being, and thus all things descend to whatever can support them? The Greek philosophers turned an observation into an explanation. Nearly twenty more centuries went by before the act of falling was studied using the methods of science.

The history of falling and gravity is full of wonderful ideas, measurements and discoveries, stretching over 300 years from Galileo and Kepler to Newton and Einstein. And although these great thinkers found all the clues necessary to reveal the true source of gravity, they failed to break the gravity code. They were unaware of the most essential ingredient of the Universe, its space-energy. Yes, the energy of space which is the basic ingredient of everything is our source of gravity.

This is how it works: At the core of each bit of matter is the condensation of some space-energy, having the property we call mass. The proton and electron are familiar forms of these condensations. This condensation of space-energy leaves depletions or partial voids in the space-energy surrounding each core of mass-energy. Each void is well structured and decreases in magnitude with increasing distance from the core. That is, the space-energy is low near the core and increases gradually to the mean value for the Universe at great distances. The force of gravity is exactly the steepness of this depletion in space-energy. The force of gravity is high near the core and diminishes to nothing at great distance. Larger bodies of matter have combined and therefore greater depletions, and therefore greater gravity.

Thanks to Einstein's famous mass-energy relationship I can easily calculate the force of gravity for any body. I do this in some detail in my book, Gravity Decoded. My results show how gravity depends on the total amount of matter in our Universe and the observable size of our Universe. I show that Newton's famous G constant relates to the dynamic tension of space. Things like planetary escape speed and bending of light by mass become simple ratios of local mass to mass of the Universe.
The reader need not be strong in math to follow my development of these space-energy ideas. I do use some basic math to obtain an equation of gravity, but science students will find it easy to read. I explain each step so you can read around the equations and still understand what is going on. Amateur astronomers will enjoy the discussions on orbiting and black holes.

Answer 2

as for gravitons, we stil have yet to prove their existence. But the theory so far stands that objects actually emit a certain amount of gravitons depending on how massive they are. Just like how a flower emits a scent, imagine the earth emitting trillions of little gravitons in every direction which pull other objects toward it.

If we look at einsteins approach, its actually the other way around, space time curvature is a function of gravitation. The more gravity there is, the mroe curved space becomes. We can look at a black hole as an example, the space that surrounds a black hole is very curved, and in every direction it funnels matter, unable to escape its pull, into its center.

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Answer 3

How does it work? The answer is; It seems to work pretty well.

Getting quantum gravity and GR to play nicely in the same sandbox has been something that physicists have been working on for over a half-century ☺


Doug

Answer 4

M-Theory http://www.damtp.cam.ac.uk/user/gr/public/qg_home.html

Einstein's space curve explains that the mass of an object will correspond with it's gravity causing a bend that will attract.

Also remember that classic physics fall apart at the micro level.
And quatum theroy falls apart at the macro level.

Answer 5

There is not enough room to start discussing all the theory that Falls under each side.

Answer 6

nobody knows...