Heinrich Friedrich Gretschel

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Heinrich Friedrich Gretschel (born October 21, 1830 in Prietitz near Elstra , † February 2, 1892 in Freiberg ) was a German mathematician .

Life

From 1847 Gretschel attended the Technical College in Dresden, which later became the Technical University of Dresden . On April 28, 1851 he was matriculated at the University of Leipzig , where he studied mathematics, natural sciences and ancient languages ​​until 1855. He passed the examination for the higher education authority with excellent results and then worked as a teacher in Leipzig.

On January 2, 1873, he received his doctorate from the Philosophical Faculty of the University of Leipzig with a mathematical dissertation. Gretschel was a universally educated scientist. He wrote books on meteorology, physics, chemistry, astronomy, geometry and cartography, worked on violin and bowmaking, and together with Julius Blüthner wrote a work on piano construction, which was published in several editions even after his death.

In 1872 he was appointed professor for mathematics and descriptive geometry at the Bergakademie Freiberg . He held this office until his death. His teaching duties at the time went far beyond mathematics as understood today. Gretschel had the title of mountain ridge. 1875–1880, 1881–1883 ​​and 1886–1889 he was a member of the Mining Academic Senate. His grave is on the Donatsfriedhof in Freiberg .

Works (selection)

  • Catechism of Physics. Weber, Leipzig 1865 ( digitized version )
  • Catechism of Meteorology. Weber, Leipzig 1867
  • Textbook for an introduction to organic geometry. Quandt & Handel publisher, Leipzig 1868 ( digitized version )
  • Textbook of pianoforte construction. (together with Julius Blüthner), Voigt, Weimar 1872
  • Textbook of map projection. Includes instructions for drawing the nets for various types of land and sky maps. Voigt, Weimar 1873
  • Lexicon of Astronomy. The whole of celestial science, taking into account astronomical instruments, the calculation of time and the most outstanding astronomers. Bibliographical Institute, Leipzig 1882 ( digitized version )

Individual evidence

  1. ↑ a b Leipzig University Archives, personnel files, matriculation between 1825 and 1889, signature: Rector B 53
  2. ↑ Date of departure: March 16, 1855
  3. ^ University archive Leipzig, personal files, doctorates 1810–1969, signature: Phil. Fac. B 128 b
  4. ↑ Technical University of Bergakademie Freiberg, archive, Senate (until 1945)
  5. ↑ Bergakademische professor graves in Freiberg cemeteries . Freiberg, 2006. ISBN 978-3-86012-285-3 , p. 20

literature

  • Heinrich Friedrich Gretschel. In: Mittheilungen des Freiberg Alterthumsverein. 28/1891, Reprint 2004, pp. 75-79
  • B. Flaxa: 100th anniversary of Heinrich Gretschel's death. In: Journal for friends and sponsors of the Technical University Bergakademie Freiberg. 2/1992/93, issue 1, p. 46
  • Hartmut Schleiff, Roland Volkmer, Herbert Kaden : Catalogus Professorum Fribergensis: Professors and teachers at the TU Bergakademie Freiberg 1765 to 2015. Freiberg, 2015, ISBN 978-3-86012-492-5 , p. 70

Web links

personal data
SURNAME Gretschel, Heinrich Friedrich
ALTERNATIVE NAMES Gretschel, Heinrich
BRIEF DESCRIPTION German mathematician
DATE OF BIRTH October 21, 1830
PLACE OF BIRTH Prietitz near Elstra
DATE OF DEATH February 2, 1892
Place of death Freiberg