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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.
Franz Exner began his university physics studies at Vienna in 1867. He received a doctorate from the University of Vienna in 1871, after an academic year at Zürich under August Kundt, also working alongside Wilhelm Conrad Röntgen, Kundt's student and, especially through the 1879s, regular research assistant/partner. [6] [7]
Wilhelm von Humboldt was appointed Geheimer Staatsrat (not minister as intended) of education in 1809 and held office for just one year. He neverheless succeeded in drafting a complete reform of the country's educational system, [ 31 ] including the primary Prussian education system in the de:Königsberger Schulplan and establishing the new ...
Wilhelm Röntgen, physicist and engineer who discovered X-rays; Erwin Schrödinger, Austrian physicist who was professor from 1921 to 1927; Heinrich Willi, Swiss pediatrician; Heidi Wunderli-Allenspach (born 1947), Swiss biologist and first woman director of ETH Zurich
Röntgen Memorial Site, Röntgenring 8, Würzburg. The Röntgen Memorial Site in Würzburg, Germany, is dedicated to the work of the German physicist Wilhelm Conrad Röntgen (1845–1923) and his discovery of X-rays, for which he was granted the first Nobel Prize in physics, in 1901. It contains an exhibition of historical instruments, machines ...
In early 1896, there was a wave of excitement following Wilhelm Conrad Röntgen's discovery of X-rays on 5 January. During the experiment, Röntgen "found that the Crookes tubes he had been using to study cathode rays emitted a new kind of invisible ray that was capable of penetrating through black paper". [8]
Humboldt's model was based on two ideas of the Enlightenment: the individual and the world citizen.Humboldt believed that the university (and education in general, as in the Prussian education system) should enable students to become autonomous individuals and world citizens by developing their own powers of reasoning in an environment of academic freedom.
Historically, the first and most studied example of this effect is the linear magnetoelectric effect.Mathematically, while the electric susceptibility and magnetic susceptibility describe the electric and magnetic polarization responses to an electric, resp. a magnetic field, there is also the possibility of a magnetoelectric susceptibility which describes a linear response of the electric ...