Publisher's Synopsis
Excerpt from On the Computation of the Constant C2 of Planck's Equation by an Extension of Paschen's Method of Equal Ordinates
If 7x is expressed in microns and 0 in centigrade degrees of the standard gas scale, the value of the constant 02 is in the vicinity of 14400, being apparently between 14600 and 14200. If 7t=o.7 which is about the limit of the visible red, the value of the factor in the parenthesis in equation (2) is about at the melting point of platinum; about at the temperature of the arc; and about at the apparent temperature of the sun. For decreasing wave lengths, these values approach unity rapidly.
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