Georg Friedrich Pohl

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Georg Friedrich Pohl (born February 24, 1788 in Stettin ; † June 10, 1849 in Breslau ) was a German natural scientist and natural philosopher .

Career

From 1805 to 1808, Pohl studied theology - from which he expected a secure position in life - and philosophy , mathematics and natural sciences at the Friedrichs University in Halle and the Brandenburg University in Frankfurt . Enriched by Henrich Steffens for natural philosophy, he entered the grammar school teacher seminar in Stettin in 1809 . The next year he became a teacher at the United High School there . In 1813 he wanted to take part in the Wars of Liberation , but this was prevented by an eye disease. He began in Berlin as an assistant teacher at the Friedrichwerder high school and at the Plamann educational institute .

In 1820 he became a high school professor for mathematics and physics at the Friedrich-Wilhelms-Gymnasium (Berlin) . He used the time to hear philosophy from Georg Wilhelm Friedrich Hegel and mineralogy from Christian Samuel Weiss . From 1829 to 1832 he was also an associate professor at the Friedrich Wilhelms University . During this time he made his first important work on electromagnetism , whereupon the Friedrich-Alexander-Universität Erlangen gave him the Dr. phil. hc awarded. In 1832 he became full professor of physics at the Silesian Friedrich-Wilhelms-Universität , whose rector he was in 1844/45. In 1843 he was elected a member of the Leopoldina . His daughter, Maria Pohl (1816–1882), under the influence of Heinrich Förster (bishop ), converted from Protestant to Catholic in 1844, became a nun and was a Dominican in the monastery of Lienz from 1865 until her death . Georg Friedrich Pohl died of cholera in 1849 at the age of 61 .

Act

Pohl was more interested in natural philosophy and philosophical speculation than physics. For him "electricity and magnetism were nothing more than modified, polar forms of activity of chemistry". So he was more interested in electrochemistry than electromagnetism. Nevertheless, in 1823 he presented an electromagnetic rotating apparatus that was supposed to serve as evidence of geomagnetic currents. In 1825 he invented the gyrotrope . In 1828 he presented the first electromagnet in Germany, which had a load capacity of around 5 kg. In 1835 he manufactured one of the first induction devices. He was also a sharp opponent of Newtonian mechanics ; z. B. he rejected the law of inertia and instead attributed an inner force of movement to material bodies. He also wanted to replace Newton's law of gravitation with a basic law analogous to electromagnetism , according to which there could no longer be any other than elliptical orbits in the solar system.

Works

  • Foundation of the three Keppler laws. Especially by tracing the third law back to a newly discovered far more general basic law of cosmic movements, which takes the place of Newton's law of gravitation. Aderholtz, Breslau 1845 ( digitized version )

literature

Individual evidence

  1. ↑ Topic of the Rector's speech (HKM)
  2. ↑ Michael Sachs: 'Prince Bishop and Vagabond'. The story of a friendship between the Prince-Bishop of Breslau Heinrich Förster (1799–1881) and the writer and actor Karl von Holtei (1798–1880). Edited textually based on the original Holteis manuscript. In: Medical historical messages. Journal for the history of science and specialist prose research. Volume 35, 2016 (2018), pp. 223–291, here: p. 250.
  3. ↑ commutator
  4. ↑ GFPohl: Foundation of the three Keppler's laws: especially by tracing the third law back to a newly discovered far more general basic law of cosmic movements , Breslau 1845
personal data
SURNAME Pohl, Georg Friedrich
BRIEF DESCRIPTION German scientist and natural philosopher
DATE OF BIRTH February 24, 1788
PLACE OF BIRTH Szczecin
DATE OF DEATH June 10, 1849
Place of death Wroclaw