Robert Pohl

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Robert Wichard Pohl, Göttingen 1923

Pohl's Wheel: A rotating pendulum (2) coupled over a spiral spring (3) with a variable stimulation (1). Damping is controlled by an electromagnetic brake (4). It is used to demonstrate chaotic motion as well as harmonic oscillations.

Robert Wichard Pohl (10 August 1884, Hamburg - 5 June 1976, Göttingen) was a German physicist.

In 1938 Robert Pohl and Rudolf Hilsch, from the University of Göttingen, built the first functioning solid-state amplifier using salt as the semiconductor ^[1].

[edit] Literary works

Mechanik, Akustik, Wärme, 1911
Robert Pohl: Die Physik der Röntgenstrahlen, Habil., Vieweg, Braunschweig, 1912
Robert Pohl & Peter Pringsheim: Die lichtelektrischen Erscheinungen, Vieweg, Braunschweig, 1914
Elektrizitätslehre, 1927
Optik, 1940

[edit] See also

German inventors and discoverers

[edit] References

^ http://www.routledge-ny.com/ref/20ctech/transistors.html

[edit] External links

Robert Pohl in the German National Library catalogue (German)
Pohlsches Rad

This article about a German scientist is a stub. You can help Wikipedia by expanding it.

This article about a German physicist is a stub. You can help Wikipedia by expanding it.

[0] ttp://www.routledge-ny.com/ref/20ctech/transistors.html

[1]

Persondata
Name	Pohl, Robert
Alternative names
Short description
Date of birth	10 August 1884
Place of birth
Date of death	5 June 1976
Place of death

Robert Pohl

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