## General Relativity

**General relativity**, or the **general theory of relativity**, is the geometric theory of gravitation published by Albert Einstein in 1916 and the current description of gravitation in modern physics. General relativity generalises special relativity and Newton's law of universal gravitation, providing a unified description of gravity as a geometric property of space and time, or spacetime. In particular, the curvature of spacetime is directly related to the energy and momentum of whatever matter and radiation are present. The relation is specified by the Einstein field equations, a system of partial differential equations.

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### Some articles on general relativity:

**General Relativity**and Quantum Mechanics

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**General relativity**typically deals with situations involving large mass objects in fairly large regions of spacetime whereas quantum mechanics is generally reserved ... small unit of length) lengths,

**general relativity**predicts a smooth, flowing surface, while quantum mechanics predicts a random, warped surface, neither of which are anywhere near compatible ...

... There are solutions of the field equations of

**general relativity**which describe "warp drives" (such as the Alcubierre metric) and stable, traversable wormholes ... configuration of the stress–energy tensor field (see exact solutions in

**general relativity**) ...

**General relativity**does not constrain the geometry of spacetime unless outside constraints are placed on the stress–energy tensor ...

... This is "special

**relativity**" as usually understood ... This is non-gravitational physics plus

**general**covariance ... This is the sense in which "special

**relativity**" can handle accelerated frames ...

**General Relativity**- Current Status

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**General relativity**has emerged as a highly successful model of gravitation and cosmology, which has so far passed many unambiguous observational and ... Even taken as is,

**general relativity**is rich with possibilities for further exploration ... More than ninety years after its publication,

**general relativity**remains a highly active area of research ...

... is an American physicist known for his contributions to

**general relativity**... In the context of

**general relativity**, he is best known for his development (with Richard Arnowitt and Charles Misner) of the ADM formalism, roughly ... globally quantities like energy or, equivalently, mass (so-called ADM mass/energy) which, in

**general relativity**, is not trivial at all ...

### Famous quotes containing the words relativity and/or general:

“By an application of the theory of *relativity* to the taste of readers, to-day in Germany I am called a German man of science, and in England I am represented as a Swiss Jew. If I come to be regarded as a bête noire the descriptions will be reversed, and I shall become a Swiss Jew for the Germans and a German man of science for the English!”

—Albert Einstein (1879–1955)

“The *general* public is easy. You don’t have to answer to anyone; and as long as you follow the rules of your profession, you needn’t worry about the consequences. But the problem with the powerful and rich is that when they are sick, they really want their doctors to cure them.”

—Molière [Jean Baptiste Poquelin] (1622–1673)