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Planckā€™s constant
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Italian-born physicist Dr. Enrico Fermi draws a diagram at a blackboard with mathematical equations. circa 1950.
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Italian physicist Guglielmo Marconi at work in the wireless room of his yacht Electra, c. 1920.
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Planck length: why string theory is hard to test
The Planck scale is described as the arena in which both quantum mechanical and gravitational...
Video: Ā© World Science Festival (A Britannica Publishing Partner)
Max Planck and the birth of quantum mechanics
Overview of Planck's constant, including its discovery by Max Planck.
Video: Contunico Ā© ZDF Studios GmbH, Mainz
Listen to Max Planck's light bulb experiment and the origin of quantum theory
Max Planck and the origin of quantum theory.
Video: Ā© MinutePhysics (A Britannica Publishing Partner)
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