# How did Stefan Boltzmann find the constant to the Stefan Boltzmann law?

Feb 29, 2016

#### Explanation:

The Stefan-Boltzmann constant is named after two individuals - Joseph Stefan who empirically found this constant and Ludwig Boltzmann who derived it from the first principles.

A detailed history of this important constant and its significance is presented in the following work :

A Brief History Of The ${T}^{4}$ Radiation Law :
http://webpages.uidaho.edu/~crepeau/ht2009-88060.pdf

Interesting Point: Written to three significant figures, the value of Stefan-Boltzmann constant is $\setminus \sigma = 5.67 \setminus \times {10}^{- 8} \setminus \quad k g . {s}^{- 3} {K}^{- 4}$.

A number easy to remember : the 567-8 constant