Wilhelm von Bezold

Johann Friedrich Wilhelm von Bezold ( born June 21, 1837 in Munich, † February 17, 1907 in Berlin) was a German physicist and meteorologist.

Life

Bezold studied in Munich and Göttingen mathematics and physics. In 1860 he received his doctorate in Göttingen with a dissertation on the theory of the capacitor, 1861, he habilitated at Philipp von Jolly as a lecturer in physics at the University of Munich. In 1866 he was appointed associate professor in 1868 as full professor at the Technical University of Munich. In 1878 he became director of the Bavarian Central Meteorological Station in Munich. Here he gave in 1879 a meteorological yearbook and from 1881 a daily weather report out of the central station.

In 1875 he was appointed associate member of the Bavarian Academy of Sciences, 1883 he was elected a full member. In 1884 he was elected a member of the Scholars Academy Leopoldina.

In 1885 he accepted an appointment as professor of meteorology and director of the Meteorological Institute of the University of Berlin. Director of the institute he worked until 1907. He is credited with developing the network of meteorological stations in Prussia and Bavaria. Largely due to his initiative, the height of weather stations were on the Brocken, and subsequently at the highest Prussian mining " Snow Mountain " in Silesia ( worked from June 1900) created.

From 1895 to 1897 he was president of the German Physical Society.

Bezold has delivered many studies in the field of electrical theory, especially on electrical dust patterns and discharge, as well as on physiological optics. He set up a certain intervals and triads theory of color harmony, to which he developed his own twelve-part color wheel. His meteorological developments include Twilight, the doctrine of thunderstorms, the earth's magnetism and thermodynamics of the atmosphere ( introducing the concept of potential temperature ).

Richard Assmann and Reinhard Süring were his employees.

Named after him are the Bezold - Abney 's phenomenon ( light is perceived as colorless at very high intensities, also named after William de Abney Wiveleslie ) and the Bezold - Brücke phenomenon. Bezold effect or Bezold - deception ( two simultaneously seen colors merge to a new color ) indicates a he describes optical illusion.

Family

He came from Rothenburg's patrician family Bezold. The Ministerial Gustav von Bezold was his stepbrother.

Wilhelm von Bezold was with Marie von Bezold, born Hörmann of Hörbach (September 10, 1848 - December 10, 1900 ), married. His son Oskar von Bezold ( born December 20, 1874 in Munich, † March 5, 1934 in Sagan ) was a Prussian district administrator Usingen. His son was the physicist Ernst Bessel Hagen.

Works

  • Concerning the physical meaning of the potential function in the electrical science. Habilitation thesis. Munich 1861
  • The color theory: in terms of arts and crafts. . Braunschweig 1874 (2nd edition, completely re- Edit and erg of W. Seitz Braunschweig:. . Vieweg, 1921)
  • About the Law of color blending and the physiological colors. Annals of Physiological Chemistry, 1873, 226: 221-247.
  • On the thermodynamics of the atmosphere. Second Wed healing. Potential temperature. Verticaler temperature gradient. Together laws Convection. Proceedings of the Koniglich Prussian Academy of Sciences in Berlin. Born in 1888, from 1189 to 1206.
  • The Meteorology, and Atmospheric Physics. Berlin: Paetel, 1892.
  • Collected papers from the fields of meteorology and geomagnetism / Shared with A. Croym ed. by the author Braunschweig: Vieweg and Ms son, 1906 ( pdf file, 12 MB )
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