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]
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
See also
- German inventors and discoverers
References
External links
- Robert Pohl in the German National Library catalogue
- Pohlsches Rad
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