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  2. The Meaning of Relativity - Wikipedia

    en.wikipedia.org/wiki/The_Meaning_of_Relativity

    The Meaning of Relativity at Wikisource Identifiers refer to the 2014 reprint of the 5th edition unless otherwise noted The Meaning of Relativity: Four Lectures Delivered at Princeton University, May 1921 is a book published by Princeton University Press in 1922 that compiled the 1921 Stafford Little Lectures at Princeton University , given by ...

  3. General relativity - Wikipedia

    en.wikipedia.org/wiki/General_relativity

    In the language of symmetry: where gravity can be neglected, physics is Lorentz invariant as in special relativity rather than Galilei invariant as in classical mechanics. (The defining symmetry of special relativity is the Poincaré group, which includes translations, rotations, boosts and reflections.)

  4. Introduction to general relativity - Wikipedia

    en.wikipedia.org/wiki/Introduction_to_general...

    In special relativity, energy is closely connected to momentum. In special relativity, just as space and time are different aspects of a more comprehensive entity called spacetime, energy and momentum are merely different aspects of a unified, four-dimensional quantity that physicists call four-momentum. In consequence, if energy is a source of ...

  5. Relativity - Wikipedia

    en.wikipedia.org/wiki/Relativity

    Numerical relativity, a subfield of computational physics that aims to establish numerical solutions to Einstein's field equations in general relativity; Principle of relativity, used in Einstein's theories and derived from Galileo's principle; Theory of relativity, a general treatment that refers to both special relativity and general relativity

  6. Theory of relativity - Wikipedia

    en.wikipedia.org/wiki/Theory_of_relativity

    The term "theory of relativity" was based on the expression "relative theory" (German: Relativtheorie) used in 1906 by Planck, who emphasized how the theory uses the principle of relativity. In the discussion section of the same paper, Alfred Bucherer used for the first time the expression "theory of relativity" ( German : Relativitätstheorie ).

  7. List of textbooks on relativity - Wikipedia

    en.wikipedia.org/.../List_of_textbooks_on_relativity

    The Mathematical Theory of Relativity. Cambridge University Press. Einstein considered this the finest description of the theory of relativity in any language. [3] Ludwik Silberstein (1924) The Theory of Relativity, 2nd edition, enlarged @ Internet Archive; G. D. Birkhoff (1926) Relativity and Modern Physics, Google Books snippets

  8. Absolute space and time - Wikipedia

    en.wikipedia.org/wiki/Absolute_space_and_time

    The theory of relativity does not have a concept of absolute time because there is a relativity of simultaneity. An event that is simultaneous with another event in one frame of reference may be in the past or future of that event in a different frame of reference, [6]: 59 which negates absolute simultaneity.

  9. Special relativity - Wikipedia

    en.wikipedia.org/wiki/Special_relativity

    In physics, the special theory of relativity, or special relativity for short, is a scientific theory of the relationship between space and time. In Albert Einstein 's 1905 paper, On the Electrodynamics of Moving Bodies , the theory is presented as being based on just two postulates : [ p 1 ] [ 1 ] [ 2 ]