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Planck constant - Wikipedia
ويب21 hours ago · Plaque at the Humboldt University of Berlin: "Max Planck, who discovered the elementary quantum of action h, taught here from 1889 to 1928." Intensity of light emitted from a black body.Each curve represents behavior at different body temperatures. The Planck constant h is used to explain the shape of these curves.. Planck's constant was formulated …