Philipp Lenard
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Philipp Lenard was a German physicist who conducted important research on cathode rays and the photoelectric effect during the late 1800s and early 1900s, work that contributed to the development of modern physics. His discoveries helped scientists understand the nature of light and electrons, though his scientific legacy became complicated by his later support for Nazi ideology.
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Philipp Eduard Anton von Lenard ( German: [ˈfɪlɪp ˈleːnaʁt] ; 7 June 1862 – 20 May 1947) was a Hungarian–German experimental physicist who received the Nobel Prize in Physics in 1905 for his work on cathode rays. This work led to his experimental realization of the photoelectric effect, discovering that the energy (speed) of the electrons ejected from a cathode depends only on the frequency and not the intensity of light.
As an active proponent of the Nazi ideology, Lenard supported Adolf Hitler in the 1920s and was an important role model for the Deutsche Physik movement during the Nazi period. Notably, he labeled Albert Einstein's contributions to theoretical physics as "Jewish physics."
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1862 births1947 deaths19th-century German inventors19th-century Hungarian physicists20th-century German physicistsAcademic staff of the University of BonnAcademic staff of the University of BreslauAcademic staff of the University of KielEmigrants from Austria-Hungary to GermanyExperimental physicistsGerman Nobel laureatesHeidelberg University alumni