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

  3. byjus.com › physics › relativityRelativity - Meaning, Special & General Theory Of Relativity

    Albert Einstein’s Theory of Relativity encompasses two theories: Special Relativity Theory and General Relativity Theory.

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  4. scitechdaily.com › science-made-simple-what-is-theScience Made Simple: What Is the Theory of Relativity?

    Nov 25, 2023 · Relativity is two related theories: special relativity, which explains the relationship between space, time, mass, and energy; and general relativity, which describes how gravity fits into the mix. Albert Einstein proposed these theories starting in 1905.

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

    Jul 31, 2024 · 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.

  7. interestingengineering.com › science › simplifiedA simplified introduction to Einstein’s theory of relativity

    Jan 26, 2017 · The theory is based on two fundamental principles: Relativity : The laws of physics do not change. Even for objects moving at inertial, constant speed frames of reference.

  8. www.universetoday.com › 45484 › einsteins-theory-ofWhat is Einstein's Theory of Relativity? - Universe Today

    Jan 28, 2022 · Learn how Einstein built on Galileo and Newton's work to propose two theories of relativity: Special and General. Explore the key postulates, equations, and experiments that support the theory of relativity.

  9. www.thoughtco.com › einsteins-theory-of-relativityEinstein's Theory of Relativity - ThoughtCo

    Jan 8, 2020 · Learn about the two theories of relativity: special and general, and their concepts, postulates, effects, and applications. Find out how Einstein revolutionized physics with his famous formula E = mc 2 and his theory of gravitation.