Pǔlǎngkè chángshù shì wùlǐxué zhōng de jīběn chángshù.
Planck's constant is a fundamental constant in physics.
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history
Max Planck (1858-1947) introduced the quantum hypothesis in 1900, kicking off modern physics; he won the 1918 Nobel Prize in Physics. The Max Planck Society (马克斯·普朗克学会), Germany's flagship research network, is named after him.
