M. PLANCK

Planck

[plahngk]
noun
Max Karl Ernst [mahks kahrl ernst] , 1858–1947, German physicist: Nobel prize 1918.
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World English Dictionary
Planck (plæŋk, German plaŋk)
 
n
Max (Karl Ernst Ludwig) (maks). 1858--1947, German physicist who first formulated the quantum theory (1900): Nobel prize for physics 1918

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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.
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