Yahoo Answers: Answers and Comments for Did Einstein really have the answer for what is gravity and does it contain all fields? [Physics]
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From goring
enUS
Tue, 21 May 2019 21:38:16 +0000
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Yahoo Answers: Answers and Comments for Did Einstein really have the answer for what is gravity and does it contain all fields? [Physics]
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https://answers.yahoo.com/question/index?qid=20190521213816AAK5Es7
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From Jeffrey K: Gravity is the curvature of spacetime. Einstei...
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Wed, 22 May 2019 01:55:04 +0000
Gravity is the curvature of spacetime. Einstein described this mathematically. This is General relativity.
Gravity does not contain all fields of force. It is only one of 4.

From nyphdinmd: What do you mean by "answer"? Gener...
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Tue, 21 May 2019 22:56:48 +0000
What do you mean by "answer"? General relativity showed that gravity is really the result of masses curving spacetime. Particles with mass are confined to follow the curvature of spacetime. If there is a large mass near by, freely falling particles will follow the curvature to the mass. What we call gravity is the result of the surface of a mass, like the earth stopping us from freely falling to the center. The surface obstructs our fall and we experience a 'pull" downward. In principle, anything acting in spacetime has to be contained in spacetime. So photons, the carriers of electromagnetic force, travel on the shortest paths through spacetime while following the curvature. One of the biggest issues though is the inability to derive a quantum theory of gravity starting with general relativity. So while the electromagnetic, weak and strong forces all have to operate in spacetime, we have yet to develop a self consistent, finite model that yields testable results incorporating all the fundamental forces.

From Dixon: It used to be all fields round here
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Wed, 22 May 2019 02:07:41 +0000
It used to be all fields round here

From daniel g: Newton had more and better answers, Einstein j...
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Wed, 22 May 2019 00:17:20 +0000
Newton had more and better answers, Einstein just defined the math behind gravity.

From Hunter: Einstein worked on a Unified Field Theory but ...
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Tue, 21 May 2019 23:39:16 +0000
Einstein worked on a Unified Field Theory but couldn't hack it. Although some people believe that he used the theory he had to engineer the illfated Philadelphia Experiment. Who knows?