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Stefan-Boltzmann constant

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Stefan-Boltzmann constant [′shte‚fän ′bōlts‚män ‚kän·stənt]
(statistical mechanics)
The energy radiated by a blackbody per unit area per unit time divided by the fourth power of the body's temperature; equal to (5.6696 ± 0.0010) × 10-8(watt)(meter)-2(kelvin)-4.


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r] = the local fraction of the energy emitted as thermal radiation [sigma] = Stefan-Boltzmann constant [m.
e], [epsilon] is the emissivity of the radiating object, and [sigma] is the Stefan-Boltzmann constant.
Coblentz was especially prolific, working to measure the Stefan-Boltzmann constant (123) using an early precursor for absolute detectors (121).
 
 
 
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