Max Planck considered bodies which absorb all radiation. Due to the conservation of of energy, radiation has to be re-emitted by the surface. The body's temperature determines at which wavelengths the ...

We solve the one-dimensional Fokker-Planck equation for radiation belt electrons under the assumption of the conservation of the first and second adiabatic invariants (so-called radial diffusion). We ...

Planck’s constant is one of the most important numbers in science. It describes the relationship between the energy and frequency of an electromagnetic wave in an equation known as the Planck-Einstein ...