Philipp Lenard

Philipp Lenard
Philipp Lenard
	Lenard in 1905
Born	Philipp Eduard Anton von Lenard; 7 June 1862; Pozsony, Kingdom of Hungary, Austrian Empire
Died	20 May 1947 (aged 84); Messelhausen, US-Zone, Allied-occupied Germany
Alma mater	University of Heidelberg (Dr. phil.)
Known for	Cathode rays; Photoelectric effect;
Movement	Deutsche Physik
Awards	Rumford Medal (1896); Matteucci Medal (1896); Nobel Prize in Physics (1905); Franklin Medal (1932);
	Scientific career
Fields	Particle physics
Institutions	University of Budapest; University of Bonn; University of Breslau; RWTH Aachen; University of Heidelberg; University of Kiel;
Thesis	Ueber die Schwingung fallender Tropfen (1886)
Doctoral advisor	Georg Quincke
Other academic advisors	Robert Bunsen
Doctoral students	Edward Andrade (1911); Walther Kossel (1911); Rudolf Tomaschek (1921);

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."