Erhard Wielandt

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Erhard Wielandt giving a lecture at the Catholic rural community college "Schorlemer Alst"

Erhard Wielandt (* 1940 in Berlin ) is a German geophysicist . From 1988 to 2005 he was a professor at the University of Stuttgart .

Life

family

Erhard Wielandt is the son of Helmut Wielandt and the brother of Rotraud Wielandt and Irmgard Wielandt.

Study and teaching

After attending grammar school in Tübingen , Wielandt studied physics at the University of Tübingen and the Free University of Berlin from 1958 to 1965, and graduated in 1964 with a thesis on quantum field theory . He then worked for four years as a developer in an electronics company in Tübingen that manufactured geophysical measuring devices. In 1968 he moved to the Geophysical Institute of the University of Karlsruhe as a research assistant . He completed his doctorate in 1972 with a dissertation on the excitation of seismic waves by underwater explosions.

Wielandt then worked from 1972 to 1988 as a research assistant at the Institute for Geophysics at the Swiss Federal Institute of Technology (ETH) in Zurich , where he worked on, among other things, the dispersion of surface waves , the development of the broadband seismometers STS-1 and STS-2 as well as the seismic 24-bit Analog-to-digital converter Quantagrator and worked in theoretical seismology. During this time he undertook refraction seismic missions in various European countries as well as in Tunisia . In 1978 he accepted an invitation to the University of California, Los Angeles (UCLA) for two months , where he produced a highly regarded work on the structure under the East Pacific Ridge from the dispersion of long-period Rayleigh waves. In 1988 he was appointed professor and director at the Institute for Geophysics in Stuttgart. He held this position until he retired in 2005.

Wielandt has done pioneering work on the theory of the propagation of elastic waves in heterogeneous media and its interpretation.

In 2003 Wielandt was awarded the Emil Wiechert Medal , the highest scientific award of the German Geophysical Society .

Publicity

In lectures and publications, Wielandt has critically dealt with pseudoscientific and esoteric statements, such as the phenomenon of earth rays or homeopathy . In 2005, together with the mathematician Gerhard Bruhn and the chemist Klaus Keck, he wrote a critical appeal for a study in vitro testing of homeopathic dilutions from 2003, with which pharmacists at the University of Leipzig had scientifically proven the effectiveness of homeopathic high potencies believed. In their criticism of the study, Wielandt, Bruhn and Keck identified serious methodological errors. Wielandt is also active in the field of school physics; since 1994 he has been a scientific mentor to a geophysics working group in Monschau (Eifel).

Web links

Individual evidence

  1. ^ Emil Wiechert Medal for Prof. Erhard Wielandt ( Memento of the original from October 30, 2007 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (PDF; 57 kB)  @1@ 2Template: Webachiv / IABot / www.dgg-online.de
  2. ↑ Commentary by Erhard Wielandt, Gerhard Bruhn and Klaus Keck on in-vitro testing of homeopathic dilutions
  3. ↑ Generally understandable article on the topic of "seismographs" (PDF; 1.0 MB)
  4. ↑ On this also: Wielandt, E. et al .: Signals from the Earth, in: Physik in our Time 6 (2006), pp. 281–285
personal data
SURNAME Wielandt, Erhard
BRIEF DESCRIPTION German geophysicist
DATE OF BIRTH 1940
PLACE OF BIRTH Berlin