| Share
 

Philipp Eduard Anton Lenard

Lenard, Philipp Eduard Anton (fēˈlĭp āˈdōärt änˈtōn lāˈnärt) [key], 1862–1947, German physicist, b. Bratislava. After serving as professor at the universities of Kiel (1898–1907) and Heidelberg (1896–98, 1907–31), he headed the Philipp Lenard Institute at Heidelberg. He was the first to cause cathode rays to pass from the interior of a vacuum tube through a thin metal window into the air, where they produce luminosity. For his research in this field he received the 1905 Nobel Prize in Physics. He is noted also for his work on the structure of the atom and for the discovery (1902), in connection with the photoelectric effect, that the velocity of electrons is independent of the intensity of the light that emits them.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

More on Philipp Eduard Anton Lenard from Infoplease:

See more Encyclopedia articles on: Physics: Biographies


Premium Partner Content
HighBeam Research
Documents Images and Maps Reference
(from Newspapers, Magazines, Journals, Newswires, Transcripts and Books)

Research our extensive archive of more than 80 million articles from 6,500 publications.

Additional search results provided by HighBeam Research, LLC. © Copyright 2005. All rights reserved.

24 X 7

Private Tutor

Click Here for Details
24 x 7 Tutor Availability
Unlimited Online Tutoring
1-on-1 Tutoring