Back Philipp Lenard Afrikaans Philipp Lenard AN فيليب أنتون لينارد Arabic فيليب انتون لينارد ARZ Philipp Lenard AST Filipp Lenard Azerbaijani فیلیپ لنارت AZB Филипп Ленард Bashkir Філіп Эдуард Антон фон Ленард Byelorussian Филип Ленард Bulgarian
Philipp Lenard | |
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 Lenard in 1905 | |
| Born | Philipp Eduard Anton von Lenard 7 June 1862 |
| Died | 20 May 1947 (aged 84) |
| Alma mater | |
| Known for | Work on cathode rays |
| Movement | Deutsche Physik |
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| Scientific career | |
| Fields | Physics |
| Institutions |
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| Thesis | Über die Schwingungen fallender Tropfen (About the vibrations of falling drops) (1886) |
| Doctoral advisor | Georg Hermann Quincke |
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Philipp Eduard Anton von Lenard (German: [ˈfɪlɪp ˈleːnaʁt] ⓘ; Hungarian: Lénárd Fülöp Eduárd Antal; 7 June 1862 – 20 May 1947) was a Hungarian-German physicist who received the Nobel Prize in 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 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 science as "Jewish physics".
- ^ a b c "Philipp Eduard Anton Lenard - Physics Tree". academictree.org. Retrieved 15 July 2025.
- ^ Andrade, E.N. da C. (July 1962). "Some Personal Reminiscences." (PDF). In Ewald, P.P. (ed.). 50 Years of X-ray crystallography. Chester, England: International Union of Crystallography. ISBN 978-1-4615-9961-6.
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