bn:03138807n
Noun Concept
EL
εγκάρσια φαινόμενο doppler  σχετικιστικό φαινόμενο doppler
EN
The relativistic Doppler effect is the change in frequency, wavelength and amplitude of light, caused by the relative motion of the source and the observer, when taking into account effects described by the special theory of relativity. Wikipedia
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