X-Nico

unusual facts about thermal radiation



Laplace transform

The wide and general applicability of the Laplace transform and its inverse is illustrated by an application in astronomy which provides some information on the spatial distribution of matter of an astronomical source of radiofrequency thermal radiation too distant to resolve as more than a point, given its flux density spectrum, rather than relating the time domain with the spectrum (frequency domain).

Phong reflection model

For example, it has been used to model the reflection of thermal radiation from the Pioneer probes in an attempt to explain the Pioneer anomaly.


see also

Wien's law

Wien approximation, an equation used to describe the short-wavelength (high frequency) spectrum of thermal radiation