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Heinrich Rudolf Hertz (/ h ɜːr t s /, HURTS; German: [ˈhaɪnʁɪç hɛʁts]; [1] [2] 22 February 1857 – 1 January 1894) was a German physicist who first conclusively proved the existence of the electromagnetic waves predicted by James Clerk Maxwell's equations of electromagnetism.
Wilhelm Conrad Röntgen (/ ˈ r ɛ n t ɡ ə n,-dʒ ə n, ˈ r ʌ n t-/; [4] German: [ˈvɪlhɛlm ˈʁœntɡən] ⓘ; anglicized as Roentgen; 27 March 1845 – 10 February 1923) was a German physicist [5] who produced and detected electromagnetic radiation in a wavelength range known as X-rays.
Max Theodor Felix von Laue (German: [ˈmaks fɔn ˈlaʊə] ⓘ; 9 October 1879 – 24 April 1960) was a German physicist who received the Nobel Prize in Physics in 1914 for his discovery of the diffraction of X-rays by crystals.
Wilhelm Conrad Röntgen: Physicist and discoverer of x-rays/Röntgen rays (8 November 1895), this earned him the first Nobel Prize in Physics in 1901. Arthur Rudolph: Rocket engineer who, together with Wernher von Braun, played a key role in the development of the V-2 rocket. Ernst Ruska: Physicist, developed the first electron microscope in ...
He also independently discovered Joule's law in 1842; to honor his efforts, Russian physicists refer to it as the "Joule–Lenz law". 1833 – Michael Faraday announces his law of electrochemical equivalents; 1834 – Heinrich Lenz determines the direction of the induced electromotive force (emf) and current resulting from electromagnetic ...
Among the devices he invented are the electrometer quadrant and a double refractometer of great precision. Hallwachs was an assistant of Heinrich Hertz, in 1886, before the photoelectric effect was discovered. Hallwachs and Hertz, in 1887, carried on the investigations of electromagnetic waves.
Theodor Wulf (28 July 1868 – 19 June 1946) was a German physicist and Jesuit priest who was one of the first experimenters to detect excess atmospheric radiation.. Theodor Wulf became a Jesuit priest at the age of 20, before studying physics with Walther Nernst at the University of Göttingen.
Friedrich Ernst Dorn (27 July 1848 – 16 December 1916) was a German physicist who was the first to discover that a radioactive substance, later named radon, is emitted from radium. Life and work [ edit ]