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  1. www.relativity.comeDiscovery & Legal Search Software Solutions | Relativity

    Relativity offers cloud-based e-discovery and investigations software with artificial intelligence, security, and support. Learn about RelativityOne, aiR, webinars, trainings, certifications, and more.

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  2. en.wikipedia.org › wiki › Theory_of_relativityTheory of relativity - Wikipedia

    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. Special relativity applies to all physical phenomena in the absence of gravity.

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  4. www.britannica.com › science › relativityRelativity | Definition, Equations, & Facts | Britannica

    Relativity, wide-ranging physical theories formed by the German-born physicist Albert Einstein. Special relativity is limited to objects that are moving with respect to inertial frames of reference. General relativity is concerned with gravity, one of the fundamental forces in the universe.

  5. www.nationalgeographic.com › science › articleEinstein’s Relativity Explained in 4 Simple Steps - National...

    • 1895: Running Beside a Light Beam. By this point, Einstein’s ill-disguised contempt for his native Germany’s rigid, authoritarian educational methods had already gotten him kicked out of the equivalent of high school, so he moved to Zurich in hopes of attending the Swiss Federal Institute of Technology (ETH).
    • 1904: Measuring Light From a Moving Train. It wasn’t easy. Einstein tried every solution he could think of, and nothing worked. Almost out of desperation, he began to consider a notion that was simple but radical.
    • May 1905: Lightning Strikes a Moving Train. Einstein’s revelation was that observers in relative motion experience time differently: it’s perfectly possible for two events to happen simultaneously from the perspective of one observer, yet happen at different times from the perspective of the other.
    • September 1905: Mass and Energy. That first paper wasn’t the end of it, though. Einstein kept obsessing on relativity all through the summer of 1905, and in September he sent in a second paper as a kind of afterthought.

  6. en.wikipedia.org › wiki › General_relativityGeneral relativity - Wikipedia

    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.

  7. www.iop.org › explore-physics › big-ideas-physicsRelativity | Institute of Physics

    Learn how Einstein revolutionized our understanding of space, time and gravity with his special and general relativity theories. Discover how he predicted and verified the bending of light, gravitational redshift and gravitational waves.

  8. www.space.com › 17661-What is the theory of general relativity? | Space

    May 14, 2023 · General relativity is a physical theory about space and time and it has a beautiful mathematical description. According to general relativity, the spacetime is a 4-dimensional object that has...