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Experimentelles zur Theorie von Bohr, Kramers und Slater plus 2 other items by Hertz & Hevesy from Zeeman's Library

Bothe & Geiger

Publication Date: 1925
Soft cover
From Jeremy Norman's historyofscience (Novato, CA, U.S.A.)

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(1) Bothe, Walther (1891-1957) and Geiger, H. Experimentelles zur Theorie von Bohr, Kramers und Slater. Offprint from Die Naturwissenschaften, 13 Jahrg., Heft 20 (1925). Single unbound sheet. Creased horizontally with small tears along fold. (2) Hertz, G. Bohrsche Theorie und Elektronenstoss. Offprint from: Die Naturwissenschaften 11 (1923). [604]-605pp. Unbound as issued. Creased horizontally, somewhat browned & chipped. (3) Hevesy, Gyorgy (1885-1966). Bohrsche Theorie und Radioaktivitat. Offprint from: Die Naturwissenschaften 11 (1923). [564]-567pp. Unbound as issued. Somewhat browned and brittle, creased where previously folded. Together 3 items, 271 x 197 mm. From the library of Nobel laureate Pieter Zeeman (1865-1943), who received a share of the 1902 physics prize for his discovery of the Zeeman effect (the polarization of spectral lines by a magnetic field), which provided 20th-century physics with one of its most useful and powerful investigative tools. (1). First Separate Edition. "Among the topics that Bothe studied in 1924 was the ejection of electrons by X rays, and it was in connection with this phenomenon that he and Geiger performed an important experiment. In an effort to reconcile the particulate and wavelike properties of radiation, Bohr, Kramers, and Slater in 1924 formulated a new quantum theory of radiation. According to the hypothesis, momentum and energy are conserved only statistically in interactions between radiation and matter. Bothe and Geiger suggested that this could be tested experimentally by examining individual Compton collisions. Bothe introduced a modification into the Geiger counter that made it appropriate for use in coincidence experiments . . . using two counters, they studied the coincidences between the scattered X ray and the recoiling electron. Correlating photons with electrons, Bothe and Geiger found a coincidence rate of one in eleven; since the chance coincidence rate for the situation was 10-5, the experimental results contradicted the theoretical predictions and indicated small-scale conservation of energy and momentum" (DSB). Bothe shared the 1954 Nobel Prize for physics with Max Born for the coincidence method and the discoveries that he made using this technique. (2) First Separate Edition. On Bohr's theory and electron collision. (3) First Separate Edition. On Bohr's theory and radioactivity. Hevesy was awarded the 1943 Nobel Prize for chemistry for his work on the use of radioactive isotopes as tracers, and he is also known for having discovered the element hafnium. Bookseller Inventory # 38621

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Bibliographic Details

Title: Experimentelles zur Theorie von Bohr, ...

Publication Date: 1925

Binding: Soft cover

Edition: 1st Edition

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