Philipp Lenard

Philipp Lenard
Philipp Lenard
	Lenard in 1905
Born	Philipp Eduard Anton von Lenard; 7 June 1862; Pressburg, Kingdom of Hungary, Austrian Empire
Died	20 May 1947 (aged 84); Messelhausen, US-Zone, Allied-occupied Germany
Alma mater	University of Budapest; University of Heidelberg (Dr. rer. nat.);
Known for	Work on cathode rays; Work on the photoelectric effect;
Movement	Deutsche Physik
Awards	Rumford Medal (1896); Matteucci Medal (1896); Nobel Prize in Physics (1905); Franklin Medal (1932);
	Scientific career
Fields	Physics
Institutions	University of Bonn ; (1892–94); University of Breslau ; (1894–95); Technische Hochschule Aachen (1895–96); University of Heidelberg (1896–98, 1907–31); University of Kiel ; (1898–1907);
Doctoral advisor	Georg Quincke
Other academic advisors	Robert Bunsen; Loránd Eötvös;
Doctoral students	Edward Andrade (1910); Walther Kossel (1910); Rudolf Tomaschek (1921);

Philipp Eduard Anton von Lenard (German: [ˈfɪlɪp ˈleːnaʁt] ^ⓘ; 7 June 1862 – 20 May 1947) was a Hungarian-German physicist whose work on cathode rays earned him the Nobel Prize in Physics in 1905.

Lenard 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 Deutsche Physik movement during the Nazi period. Notably, he labeled Albert Einstein's contributions to physics as "Jewish physics".

^ ^a ^b ^c "Philipp Eduard Anton Lenard - Physics Tree". academictree.org. Retrieved 15 July 2025.

[PhysicsTree-1] "Philipp Eduard Anton Lenard - Physics Tree". academictree.org. Retrieved 15 July 2025.

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