Einstein field equations
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In the general theory of relativity, the Einstein field equations relate the geometry of spacetime to the distribution of matter-energy within it.
EFE on the wall of the Rijksmuseum Boerhaave in Leiden, Netherlands
GPB circling earth
General relativity
Videos
General relativity, also known as the general theory of relativity, and as Einstein's theory of gravity, is the geometric theory of gravitation published by Albert Einstein in May 1916 and is the acce
Einstein field equations
…In the general theory of relativity, the Einstein field equations (EFE; also known as Einstein's equations) relate the geometry of spacetime to the distribution of matter-energy within…
Einstein cross: four images of the same astronomical object, produced by a gravitational lens
Artist's impression of the space-borne gravitational wave detector LISA
This blue horseshoe is a distant galaxy that has been magnified and warped into a nearly complete ring by the strong gravitational pull of the massive foreground luminous red galaxy.
Projection of a Calabi–Yau manifold, one of the ways of compactifying the extra dimensions posited by string theory