In electromagnetics, an antenna’s power gain or simply gain is a key performance figure which combines the antenna’s directivity and electrical
Rydberg formula - For hydrogen
The Rydberg formula is used in atomic physics to describe the wavelengths of spectral lines of many chemical elements. It was formulated by the Swedish
Wave shoaling height
In fluid dynamics, wave shoaling is the effect by which surface waves entering shallower water change in wave height. It is caused by the fact that the
In astrodynamics an orbit equation defines the path of orbiting body around central body relative to , without specifying position as a function of time.