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Hans Friedrich Geitel

Hans Friedrich Geitel German physicists

German physicists
The basics
Quick Facts
Intro German physicists
A.K.A. Hans Geitel
Was Scientist Physicist
From Germany
Type Science
Gender male
Birth 16 July 1855, Brunswick, Germany
Death 15 August 1923, Wolfenbüttel, Germany (aged 68 years)
Star sign CancerCancer
The details
Biography

Hans Friedrich Geitel (16 July 1855 in Braunschweig – 15 August 1923 in Wolfenbüttel) was a German physicist.

Biography

Through the relocation of his family, his father was a forester, Hans Geitel came to Blankenburg in 1861 and grew up in close proximity to Julius Elster. He attended school and high school together with Elster. A lifelong friendship developed between the two of them, their interest in science became a shared field of activity.

During their studies both spent two years in Heidelberg and Berlin. In 1879 Geitel got his teaching degree in Braunschweig and accepted a position as teacher at the Great School of Wolfenbüttel. In 1881 Geitel succeeded in getting Julius Elster to the school as well. There they intensified their joint researches. Karl Bergwitz (1875–1958), who continued their research, was one of their students there. In 1892 Geitel was elected a member of the German Academy of Sciences Leopoldina.

Publications

Geitel and Elster published works on meteorology, nuclear physics, and the photoelectric effects. Geitel recognized the law of radioactive decay in 1899 and coined the term atomic energy. In 1893 he invented the photocell.

Journals

  • Elster, Julius and Geitel, Hans: Experiments on Hyperphosphorescenz. addenda to the annals of Physics and Chemistry, 21:455, 1897.
  • Elster, Julius and Geitel, Hans: Via the influence of a magnetic field on the Becquerel rays caused by the conductivity of the air negotiations of the German Physical Society, 1:136-138 May, 1899.
  • Elster, Julius and Geitel, Hans: About Ozone formation of glowing platinum surfaces and Electrical conductivity of ozonized by phosphorus air. Annals of Physics and Chemistry, 275:321-331, in 1890.
  • Elster, Julius and Geitel, Hans: Experiments on Becquerel. Annals of Physics and Chemistry, 302:735-740, in 1898.

Awards

In 1899, Geitel was awarded an honorary doctorate at the University of Göttingen. In 1915 he was, along with Elster, awarded a honorary degree of the Braunschweig University of Technology.

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Reference sources
References
https://catalogue.bnf.fr/ark:/12148/cb12431095h
https://data.bnf.fr/ark:/12148/cb12431095h
https://d-nb.info/gnd/118538284
http://isni.org/isni/0000000083867662
https://id.loc.gov/authorities/names/n82071815
http://data.bibliotheken.nl/id/thes/p068848447
https://www.idref.fr/114654166
https://viaf.org/viaf/59875785
https://www.worldcat.org/identities/containsVIAFID/59875785
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