Stefan Boltzmann constant definitions

Stefan–Boltzmann constant

The Stefan–Boltzmann constant (also Stefan`s constant), a physical constant denoted by the Greek letter σ, is the constant of proportionality in the Stefan–Boltzmann law: `the total intensity (physics) radiated over all wavelengths increases as the temperature increases`, of a black body which is proportional to the fourth power of the the......
Found on http://en.wikipedia.org/wiki/Stefan–Boltzmann_constant

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Stefan-Boltzmann Constant

s = 5.67x10^-8 Wm^-2K^-4ttle='Stefan-Boltzmann Constant';consttxt='s';constval=5.67e-8;constunt='Wm^-2K^-4'; See also: Physical Constants.
Found on https://www.encyclo.co.uk/local/20687

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Stefan–Boltzmann constant

In physics, a constant relating the energy emitted by a black body (a hypothetical body that absorbs or emits all the energy falling on it) to its temperature. Its value is 5.6697 × 10^-8 W m^-2 K^-4
Found on https://www.encyclo.co.uk/local/21221

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