Search results

Jump to navigation Jump to search
  • ...nd light as manifestations of the same phenomenon. [[Maxwell's equations]] for electromagnetism have been called the "second great unification in physics" ...December 1864 presentation by Maxwell to the Royal Society. His statement that "light and magnetism are affections of the same substance" is at page 499.)
    78 KB (11,137 words) - 15:23, 19 July 2017
  • The '''phonograph''' is a device for the mechanical [[Sound recording and reproduction|recording and reproductio ...ing from the periphery to near the center, coining the term ''gramophone'' for disc record players, which is predominantly used in many languages. Later i
    115 KB (17,286 words) - 16:32, 16 December 2018