DOI: https://doi.org/10.36719/2707-1146/62/28-32
The Nature of the Doppler Effect
Gunay Dadashzade 
Abstract. This text explains the physical nature of the Doppler effect, its classical and relativistic manifestations, and its practical applications in science. The longitudinal and transverse effects, their differences, and experimental confirmations are discussed. The historical milestones of the discovery and confirmation of the effect are described, as well as its significance for astrophysics and the theory of relativity. The Doppler effect is a change in the frequency and wavelength of waves recorded by a receiver due to the movement of the source and/or receiver.
Keywords: electromagnetic, Doppler effect, partticles, waves, observation