Hans Benndorf

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Hans Benndorf (13 December 1870 – 11 February 1953) was an Austrian physicist. He made several contributions in the field of seismology and in his research of atmospheric electricity.

Life and career

Benndorf was born on 13 December 1870 in

physiologist Rudolf Wagner
(1805–1864).

In 1895 he earned his doctorate from the University of Vienna, and subsequently became an assistant to Franz Serafin Exner (1849–1926). In 1904 he became an associate professor of meteorology at the University of Graz. In 1910 he replaced Leopold Pfaundler (1839–1920) as professor of physics, a position he kept until 1936 (forced retirement). In 1945 he resumed his duties in physics at Graz.

In 1927 he was elected as a full member of the

climatologist Victor Conrad
(1876–1962) during his career. With Hess he co-authored a comprehensive treatise on atmospheric electricity (1928).

In 1907 he founded a seismological observatory at the physical institute in Graz, and during the same year was awarded with the Ignaz

.

In a mine-shaft at

microseismic activity with the use of seismometers. Also, he was the first scientist to solve the problem involving the refraction of seismic rays in spherical layers. The term Benndorfscher Satz (Benndorf's relationship) is used to describe the constancy of the ray parameter across the spherical layers.[1]

He died on 11 February 1953 in Graz, at the age of 82.

A device known as a "Benndorf electrometer" is used for atmospheric electrical measurements.[2][3]

References

  1. ^ [1] Archived 2012-06-10 at the Wayback Machine METEOROLOGY AND GEOPHYSICS AND ITS AMBASSADORS AT THE UNIVERSITY OF GRAZ: A HISTORICAL SURVEY Bruno Besser
  2. ^ [2] Physics of the air - William Jackson Humphries
  3. ^ [3] Physik.UIBK Galvanometer
  • Parts of the biography are based on a translation of an article from the German Wikipedia.