Definition of Stefan–Boltzmann law in English:

Stefan–Boltzmann law

Syllabification: Ste·fan–Boltz·mann law
Pronunciation: /ˌstefənˈbōltsmən ˌlô
A law stating that the total radiation emitted by a black body is proportional to the fourth power of its absolute temperature.
More example sentences
  • The Stefan-Boltzmann Law gives the total energy being emitted at all wavelengths by the blackbody (which is the area under the Planck Law curve).
  • The Stefan-Boltzmann law tells you how much energy a blackbody radiator of a given temperature radiates per unit area of it surface.


late 19th century: named after Josef Stefan (1835–93), Austrian physicist, and L. Boltzmann (see Boltzmann, Ludwig).

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