Planck constant, named H, is a physical constant that describes the quantum size. It plays an important role in quantum mechanics. When Max Planck studied the law of thermal radiation of objects in 1900, he found that as long as the emission and absorption of electromagnetic waves were not continuous, but one after another, the calculated results could be consistent with the experimental results.

Introduction to Planck:

Max Karl ernst ludwig Planck (German: Max Karl ernst ludwig Planck; Born in Hollstein, Germany, he is a famous German physicist and one of the important founders of quantum mechanics.

From 65438 to 0874, Planck entered the University of Munich to study mathematics and later changed to physics. 1877 Transfer to Berlin University. 1879 received his doctorate. Planck has been paying attention to and studying the second law of thermodynamics since his doctoral thesis, and has published many papers.

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