History of physics collections destroyed in World War II.
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Physicist (spectroscopy). On the physics faculty at Physikalischen Institut (1878-1885), Technische Hochschule Hannover (1885-1894), and Universität Bonn from 1894. From the description of Letters. (Unknown). WorldCat record id: 79182023 Heinrich Kayser was a German physicist and spectroscopist. He taught physics at the University of Bonn from 1894 to 1920. From the description of Erinnerungen aus meinem Leben, 1936. (American Philosophical Society Library). Wor...
Heinrich Hertz (b. Feb. 22, 1857, Hamburg, Germany–d. Jan. 1, 1894, Bonn, Germany) was a German physicist who first conclusively proved the existence of the electromagnetic waves theorized by James Clerk Maxwell's electromagnetic theory of light. The unit of frequency — cycle per second — was named the "hertz" in his honor....