Theories about gravity?

Question

I know scientists are still trying to figure out exactly why gravity is what it is, any theories about gravity?

Answer 1

Ok, think of a plane (invisible flat surface, not aero.) going in a straight line. Gravity is the bend in that plane. Objects react to the curve in these planes, like the earth around the sun. But smaller objects also create curves in these planes, but their size id often too small to be noticed. All mass has gravity. If it pulls you, you pull it back. But the force is often too small to even matter.

Answer 2

There are 2 main theories on gravity. One is the theory of Newton, that gravity is a force directed towards the center if mass of any object. The other is the general Theory of Relativity, which is the idea that gravity is, simply put, a "dent" in the fabric of space-time made by a massive body. Under normal instances, these 2 theories are essentially the same. But for large masses (stellar) and large velocities (comparable to the speed of light), relativity is the only valid theory to use.

Answer 3

There is also a quantum theory of gravity. It supposes that an elementary particle, the graviton, is responsible for the way gravity behaves, much like the way the photon is responsible for why magnets behave as they do.

However, this particle has yet to be found, and for good reason. It is the smallest, weakest elementary particle by theory. Gravity is not nearly as strong as the other three forces in the universe. Those being the electromagnetic force, the weak nuclear force, and the strong nuclear force.

-Nick

Answer 4

guidelines are ordinary truths which have gone through riggorous finding out in many circumstances expressed mathematically, consisting of F = Ma. A concept is outfitted round a regulation and is better complicated than a regulation. A concept has been subjected to wide peer evaluation and in spite of many tries have not been disproved. What you're deliberating is a hypothesis. this is a testable theory it is placed out for peer evaluation. Now purely because some thing will change right into a concept or a regulation does no longer mean it ought to't be amended in time if new observations or info calls one of those regulation or concept into question. for instance in case you dropped a hammer and it fell as a lot because the ceiling, and this occurred on distinctive activities, and should be repeated by technique of others, then the guidelines of action may want to be revised, in spite of the indisputable fact that the flaws that make those guidelines so physically powerful is that there are not exceptions. that does no longer mean technological information is the revelation of absolute reality by technique of any potential (actual revelation of absolute reality has better to do with non secular dogma than technological information). There are some those who regrettably deal with technological information like a faith and do a disservice to technological information by technique of assuming that medical theories are absolute truths, it truly isn't any a lot less incorrect than believing a medical concept is an similar as a hypothesis. we've only to look on the evolution of modern atomic concept from 2 guidelines (the regulation of conservation of mass/skill and the regulation of certain proportions by potential of the plum pudding sort, to the planetary sort to fashionable quantum sort. New discoveries are always pushing ahead the barriers of records, technological information is a procedures from static and there are lots better wonders contained in the universe searching ahead to discovery.

Answer 5

Out of the theories of gravity explanations on the mechanisms of gravity have been scarse.
Quantum mechanics deals only with charges and oscillation of atomic masses on a microscopic scale but offers no gravity mechanism. It alludes to gluons which glue particles together but no explanation what king of glue it is.
General relativity explains what happens to Fields in space :however fails miserably to give any mechanisms.
Note when we use a scale its Newton Gravity force theory that come into play,No one dares to use General relativity to figure out how many 10 kilo of potato mass weights. Even though they warp space-time as per Einsteins field equations.
Newton gave a gravitational formula for what we call weight ,but decline to give any further explanation on its mechanism.
So In reality Gravity is Barely barely miniscully understood. And most humans are not really concerned about it.
Presently there is one theory based on Lesage concept of gravity.
This theory is called "Autodynamics Relativity"by Ricardo Carezani.
From my own research and observation it appears to me the one Force that really Unified all other Forces is REALLY Gravity.
Its a phenomena which is comon to all other phenomenae and manifests itself in diferent configurations ,but its all one and the same phenomena and process.

The idea of the theory of the ropes appears to allude to that and its one of the few theories that had a very good insight. Though according to Heisenberg's principle we can not be sure exactly.

Than there is a theory of the aether whcih many scientists are afraid to admit to its existance. The present theory alluding to the aether is called Quantum Aether dynamics.This theory marries both the micro and macro universe giving explanation to electricity and magnetism interaction with the substance of space.A very inovative and tought out theory.

Answer 6

Gravity is the attractive force between two or more mass charges.

Gravity is nearly 100% analogous, governing formulas and all, electromagnetism. At one point in the history of the universe, in fact, electromagnetism and gravity were united as a single force.

Answer 7

There are two forces in nature that we experience every day: gravity and magnetism. You may have magnets on your refrigerator, and you know that a magnet will attract a refrigerator with a certain amount of force. The force depends on the strength of the magnet and the distance between the magnet and the metal. You also know that magnets have two poles -- north and south. Either pole will attract iron or steel equally well, north will attract south, and like poles will repel one another.

Gravity is the other common force. Newton was the first person to study it seriously, and he came up with the law of universal gravitation:

Each particle of matter attracts every other particle with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
The standard formula for gravity is:

Gravitational force = (G * m1 * m2) / (d2)
where G is the gravitational constant, m1 and m2 are the masses of the two objects for which you are calculating the force, and d is the distance between the centers of gravity of the two masses.

G has the value of 6.67 x 10E-8 dyne * cm2/gm2. That means that if you put two 1-gram objects 1 centimeter apart from one another, they will attract each other with the force of 6.67 x 10E-8 dyne. A dyne is equal to about 0.001 gram weight, meaning that if you have a dyne of force available, it can lift 0.001 grams in Earth's gravitational field. So 6.67 x 10E-8 dyne is a miniscule force. When you deal with massive bodies like the Earth, however, which has a mass of 6E+24 kilograms (see this Question of the Day), it adds up to a rather powerful force. It is also interesting to think about the fact that every atom attracts every other atom in the universe in some small way!

Einstein later came along and redefined gravity, so there are now two models -- Newtonian and Einsteinian. Einsteinian gravitational theory has features that allow it to predict the motion of light around very massive objects and several other interesting phenomena. According to Encyclopedia Britannica:

The general theory of relativity addresses the problem of gravity and that of nonuniform, or accelerated, motion. In one of his famous thought-experiments, Einstein showed that it is not possible to distinguish between an inertial frame of reference in a gravitational field and an accelerated frame of reference. That is, an observer in a closed space capsule who found himself pressing down on his seat could not tell whether he and the capsule were at rest in a gravitational field, or whether he and the capsule were undergoing acceleration. From this principle of equivalence, Einstein moved to a geometric interpretation of gravitation. The presence of mass or concentrated energy causes a local curvature in the space-time continuum. This curvature is such that the inertial paths of bodies are no longer straight lines but some form of curved (orbital) path, and this acceleration is what is called gravitation.
If certain assumptions and simplifications are made, Einstein's equations handle Newtonian gravity as a subset.

Answer 8

According to General Relativity, gravity is manifested as a warping of space and time, analogous to the warping of a sheet of fabric as a ball is rolled across it. This warping of space and time is transmitted at the speed of light. Therefore, the effects of gravity are not translated instantaneously from one mass to another across open space-time, as Newton had thought.

Answer 9

Gravity would have to be traced all the way back to the Big Bang point---the Cartesian junction.There would not be a "speed of gravity" either.Gravity would have to be instantaneous to the Big Bang point.There could be no delay in gravity.You would drop something and it would hover a bit if there were.(my findings)

Answer 10

They are trying to prove the existence of the graviton particle. Once found it will help alot in controling gravity and its effects on matter, space and time