Editing Emission (section)

==Electromagnetic radiation==
* [[Emission spectrum]], the spectrum of frequencies of electromagnetic radiation generated by molecular electrons making transitions to lower energy states
* [[Thermal emission]], electromagnetic radiation generated by the thermal motion of particles in matter
* [[List of light sources]], including both natural and artificial processes that emit light
* [[Emission (radiocommunications)]], a radio signal (usually modulated) emitted from a radio transmitter
* [[Emission coefficient]], a coefficient in the power output per unit time of an electromagnetic source
* [[Emission line]], or "spectral line", a dark or bright line in an otherwise uniform and continuous spectrum
* [[Emission nebula]], a cloud of ionized gas emitting light of various colors
* [[Emission theory (relativity)]], a competing theory for the special theory of relativity, explaining the results of the Michelson-Morley experiment
* [[Emission theory (vision)]], the proposal that visual perception is accomplished by rays of light emitted by the eyes