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It was clearly superior to Newtonian gravity, being consistent with special relativity and accounting for several effects unexplained by the Newtonian theory. Einstein showed in 1915 how his theory explained the anomalous perihelion advance of the planet Mercury without any arbitrary parameters ("fudge factors"), [12] and in 1919 an expedition ...
Tests of general relativity serve to establish observational evidence for the theory of general relativity.The first three tests, proposed by Albert Einstein in 1915, concerned the "anomalous" precession of the perihelion of Mercury, the bending of light in gravitational fields, and the gravitational redshift.
Only Einstein's theory proved to be consistent with experiments and observations. To understand the theory's basic ideas, it is instructive to follow Einstein's thinking between 1907 and 1915, from his simple thought experiment involving an observer in free fall to his fully geometric theory of gravity. [1]
Video simulation of the merger GW150914, showing spacetime distortion from gravity as the black holes orbit and merge. The theory of relativity usually encompasses two interrelated physics theories by Albert Einstein: special relativity and general relativity, proposed and published in 1905 and 1915, respectively. [1]
In the world of "Star Trek," the starship Enterprise zips through space using a warp drive that harnesses antimatter. But scientists are making important strides toward better understanding ...
The most obvious explanation for this discrepancy was an as-yet-undiscovered celestial body, such as a planet orbiting the Sun even closer than Mercury, but all efforts to find such a body turned out to be fruitless. In 1915, Albert Einstein developed a theory of general relativity which was able to accurately model Mercury's orbit. [32]
[33]: 184 In his 1916 theory of radiation, Einstein was the first to create a purely quantum explanation. [ p 20 ] This paper, well known for broaching the possibility of stimulated emission (the basis of the laser ), changed the nature of the evolving quantum theory by introducing the fundamental role of random chance.
[8] The equivalence of gravitational and inertial masses, unaccounted for by Newton, is explained by Einstein. He offers the thought experiment of an observer on a rotating disk to argue that non-Euclidean geometry is needed to describe gravity. Einstein outlines the theory's explanatory and predictive power.