max karl ernst ludwig planck

Science Dictionary
Planck   (plängk)  Pronunciation Key 
German physicist who in 1900 formulated quantum theory, which explained and predicted certain phenomena that could not be accounted for in classical physics. Planck's theory was essential to the work of Albert Einstein, Niels Bohr, and many other modern physicists. In 1918 he won the Nobel Prize for physics.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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WordNet
max karl ernst ludwig planck

noun
German physicist whose explanation of blackbody radiation in the context of quantized energy emissions initiated quantum theory (1858-1947) [syn: Planck
WordNet® 3.0, © 2006 by Princeton University.
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