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• Lorentz ether theory
  One of the first assessments of Lorentz's paper was by [[Paul Langevin]] in May 1905. According to him, this extension of the electron th ...aper's end that the discovery of magneto-[[cathode ray]]s by [[Paul Ulrich Villard]] (1904) seems to threaten it<ref group=B>Walter (2007), Chap. 1</ref>), he
  74 KB (11,386 words) - 12:43, 7 July 2017
• History of special relativity
  .... He wrote that the discovery of magneto-[[cathode ray]]s by [[Paul Ulrich Villard]] (1904) seemed to threaten the entire theory of Lorentz, but this problem ...on Laue.jpg|thumb|left|Max von Laue]] A similar situation was created by [[Paul Langevin]] in 1911 with what was later called the "[[twin paradox]]", where
  130 KB (18,278 words) - 13:48, 14 February 2019