Abdullahi, Musa Daji
Mechanics / Electrodynamics
May 29, 2018
Keywords: Aether, air, Doppler Effect, electric field, frequency, light, space, speed, velocity, wavelength
Expressions are obtained for wavelength and frequency of a sound wave in air and a light wave in space, emitted from a source moving with speed u, with respect to an observer moving with speed v, relative to a point of reference. The speed w of sound in air is taken to be independent of speed of the source and the speed c of light in space is taken to be a constant c relative to the source. The product of frequency and wavelength of a wave, in a medium, is considered a constant, equal to the speed of the wave for an observer stationary relative to the source. While air is the medium for propagation of sound, balanced electric fields from charges in bodies, are identified as the medium, the aether, for propagation of light in space. The paper challenges the relativistic principle of constancy of speed of light for all observers.