Philipp Lenard

Philipp Eduard Anton von Lenard (; 7 June 1862 – 20 May 1947) was a Hungarian-German physicist whose work on the penetration power of cathode rays earned him the 1905 Nobel Prize in Physics. He also contributed to the 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 the incident light.

Lenard was a nationalist and an antisemite; 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 physics as "Jewish physics". Provided by Wikipedia