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Radiation Entropy Compared with Particle Gas

Einstein compared the entropy of high-frequency radiation with that of a dilute gas and found a formal similarity that supported treating radiation energy as independently distributed quanta.

Albert Einstein photographed in Princeton in 1947
Albert Einstein, Princeton, 1947. Photograph by Oren Jack Turner; Library of Congress image with no known restrictions. Wikimedia Commons source.
Year 1905BernPhysics

Radiation Entropy Compared with Particle Gas

1905 · Bern · Switzerland · Physics

Einstein compared the entropy of high-frequency radiation with that of a dilute gas and found a formal similarity that supported treating radiation energy as independently distributed quanta.

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