Definition: Stefan-Boltzmann law (Stefan, L. Boltzmann): The radiated power P (rate of emission of electromagnetic energy) of a hot body is proportional to the radiating surface area, A, and the fourth power of the thermodynamic temperature, T. The constant of proportionality is the Stefan-Boltzmann constant.
Stefan-Boltzmann law (Stefan, L. Boltzmann)
From Nick Greene, for About.com
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