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Adolf (Christoph Wilhelm) Bestelmeyer (December 21, 1875 in Nuremberg — November 21, 1957 in Heidelberg) was a German experimental physicist. ==Life and work== Bestelmeyer studied mathematics and physics at the Technical University of Berlin, the Technical University of Munich and the University of Munich. After his promotion, he worked in 1904 as an assistant at the University of Göttingen. In World War I he was active in torpedo research, and afterwards he was professor of physics at the University of Greifswald from 1917 to 1921. He then served until the end of World War II as a laboratory manager in various companies (like Askania), especially in the area of torpedo construction. 〔Lerp, Karl: ''Zum Gedenken an Prof. Dr. Adolf Bestelmeyer''. In: ''Marine-Rundschau''. 6, 1959〕 〔Meyer, Helmut: ''Geschichte der Kaiser-Wilhelm-Gesellschaft im Nationalsozialismus''. 16, Wallstein, pp. 122-123, 2007, ISBN 3-8353-0109-8〕 In 1907, Bestelmeyer questioned the accuracy of the measurements by Walter Kaufmann regarding the speed dependence of the electromagnetic mass. Bestelmeyer used a velocity filter for his own experiments on cathode rays, and this method was later also used by Alfred Bucherer. While Bucherer saw the results of his experiments as a confirmation of special relativity, his methods were criticized by Bestelmeyer, thus a polemical dispute between these two researchers arose. It took years until those problems could be resolved, and the results of further experiments confirmed the predictions of special relativity. Bestelmeyer is also known for developing a magnetic detonator for torpedoes in 1917, for which he was awarded the Iron Cross 1st Class (although there was no time for testing this device in WWI anymore). 〔Schubert, P.; Sohst, H.: ''Die Deutschen Marinen im Minenkrieg''. Books on Demand, Rostock 2006, pp. 411f, ISBN 3-8334-4330-8〕 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Adolf Bestelmeyer」の詳細全文を読む スポンサード リンク
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