1858 - 1947
Planck was a theoretical physicist, born in Kiel, Germany.
He studied at Munich and Berlin where he became professor for theoretical physics.
As Planck studied the emission of radiant energy, he discovered that radiation of energy was dis-continous which provided the basis for his quantum theory.
Planck's concept that radiant energy consists of tiny packets of quanta disagreed with former theorists who had assumed that radiation was a continuous stream of energy with wavelike motion.
The new theory revolutionized physics and in 1918 Max Planck was awarded the Nobel prize.
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From the University of St. Andrews, Scotland