May 24, 2019
In 1887 Voigt tried to derive universal formula for Doppler effect in case of a stationary observer and moving source in an elastic incompressible medium . The simple problem was treated in a very complicated way. Solving the set of equations, Voigt found the Doppler formula which was already well-known. Some authors wrongly claim that Voigt proposed the constancy of speed of light in his derivation [2, 3]. Since Voigt’s transformation describes propagation of all waves as for example electromagnetic waves, sound waves, and water waves, relative to an observer stationary in an elastic medium it is simply not the case .