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2 days ago · General relativity, also known as the general theory of relativity and Einstein's theory of gravity, is the geometric theory of gravitation published by Albert Einstein in 1915 and is the current description of gravitation in modern physics. General relativity generalizes special relativity and refines Newton's law of universal gravitation ...
3 days ago · An argument is presented that if a theory of quantum gravity is physically discrete at the Planck scale and the theory recovers General Relativity as an approximation, then, at the current stage of our knowledge, causal sets must arise within the theory, even if they are not its basis. We lay out this argument in two claims. Roughly speaking, the first claim is that causal sets can recover ...
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4 days ago · For more than a century, Albert Einstein’s General Theory of Relativity has provided a surprisingly accurate framework for understanding the gravitational machinations of the universe.
5 days ago · As part of his theory of general relativity, Einstein predicted in 1916 that gravity propagates as a wave, mediated by a massless particle called a graviton that travels at the speed of light. These particles comprise gravitational waves in the same way that photons comprise light waves.
19 hours ago · History of the Special Theory Relativity (Brief Overview): Special relativity is commonly attributed to Albert Einstein’s 1905 papers. That is certainly justifiable. However, Einstein swiped the ideas of relativity from Henri Poincare, (who developed and named the principle of relativity in 1895 1895 and a mass-energy relation in 1900 1900 ...
5 days ago · general relativity - Do two bodies with the same mass but different volumes, exert the same gravitational pull? - Physics Stack Exchange.
3 days ago · We investigate the cosmological implications of the theory, and we obtain first the cosmological evolution equations for a flat, homogeneous and isotropic geometry, described by Friedmann-Lemaitre-Robertson-Walker metric, which generalize the Friedmann equations of standard general relativity.
