PHYSICIST

Heinrich Geißler

1814 - 1879

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Johann Heinrich Wilhelm Geißler (26 May 1814 in Igelshieb – 24 January 1879) was a skilled glassblower and physicist, famous for his invention of the hand pumped Geissler mercury vacuum pump in the mid-1850's and in 1857, the Geissler tube, made of glass and used as a low pressure gas-discharge tube; these two inventions were critical technologies leading to the discovery of the electron.: 67  Geissler descended from a long line of craftsmen in the Thüringer Wald and in Bohemia. He found work in different German universities, eventually including the University of Bonn. There he was asked by physicist Julius Plücker to design an apparatus for evacuating a glass tube. Plücker owed his forthcoming success in the electric discharge experiments in large measure to his instrument maker, the skilled glassblower and mechanic Johann Heinrich Wilhelm Geissler. Read more on Wikipedia

His biography is available in different languages on Wikipedia. Heinrich Geißler is the 361st most popular physicist (down from 354th in 2019), the 1,704th most popular biography from Germany (down from 1,690th in 2019) and the 50th most popular German Physicist.

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Among PHYSICISTS

Among physicists, Heinrich Geißler ranks 361 out of 851. Before him are Pascual Jordan, Frank Wilczek, Franz Aepinus, Nathan Rosen, E. C. George Sudarshan, and William Whewell. After him are Henri Pitot, Duncan Haldane, Gaston Planté, Théophile de Donder, Louis Slotin, and William Sturgeon.

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Contemporaries

Among people born in 1814, Heinrich Geißler ranks 19. Before him are Jenny von Westphalen, James Joseph Sylvester, Prince Louis, Duke of Nemours, August Grisebach, Eugène Charles Catalan, and Princess Marie Luise Charlotte of Hesse-Kassel. After him are Duchess Helene of Mecklenburg-Schwerin, Juan Prim, 1st Count of Reus, Sheridan Le Fanu, Pierre-Jules Hetzel, Tatya Tope, and Adolf von Henselt. Among people deceased in 1879, Heinrich Geißler ranks 19. Before him are Julia Margaret Cameron, Ludwig Reichenbach, August Grisebach, Édouard-Léon Scott de Martinville, Jón Sigurðsson, and Johann Friedrich von Brandt. After him are Sher Ali Khan, August Bournonville, Camille Doncieux, William, Prince of Orange, Karl Friedrich Mohr, and Maurycy Gottlieb.

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In Germany

Among people born in Germany, Heinrich Geißler ranks 1,704 out of 7,253. Before him are Louis III, Grand Duke of Hesse (1806), Jaromír, Duke of Bohemia (1000), Frederick III, Elector Palatine (1515), Meinhard III, Count of Gorizia-Tyrol (1344), Wolfgang, Count Palatine of Zweibrücken (1526), and Viktor Brack (1904). After him are Princess Marie of Baden (1782), Margravine Hedwig Sophie of Brandenburg (1623), Duchess Helene of Mecklenburg-Schwerin (1814), Matthias Jabs (1955), Kurt Polycarp Joachim Sprengel (1766), and Edmund Landau (1877).

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Among PHYSICISTS In Germany

Among physicists born in Germany, Heinrich Geißler ranks 50. Before him are Christoph Scheiner (1575), Ludwig Prandtl (1875), John B. Goodenough (1922), Walther Gerlach (1889), Pascual Jordan (1902), and Franz Aepinus (1724). After him are Wolfgang Ketterle (1957), Franz Ernst Neumann (1798), Johann Wilhelm Hittorf (1824), Friedrich Kohlrausch (1840), Friedrich Paschen (1865), and August Kundt (1839).

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