Philipp Lenard
Philipp Eduard Anton von Lenard (; ; 7 June 1862 – 20 May 1947) was a Hungarian-born German
physicist and the winner of the
Nobel Prize for Physics in 1905 for his work on
cathode rays and the discovery of many of their properties. One of his most important contributions was the experimental realization of the
photoelectric effect. He discovered that the energy (speed) of the electrons ejected from a cathode depends only on the frequency, and not the intensity, of the incident light.
Lenard was a nationalist and
anti-Semite; as an active proponent of the
Nazi ideology, he supported
Adolf Hitler in the 1920s and was an important role model for the "" movement during the
Nazi period. Notably, he labeled
Albert Einstein's contributions to science as
Jewish physics.
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