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Replies: 2   Last Post: Jul 9, 2013 1:50 AM

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 Pentcho Valev Posts: 6,212 Registered: 12/13/04
Posted: Jul 8, 2013 4:54 AM

When the observer starts moving towards (away from) the light source, antirelativists see the frequency and the speed of the light waves relative to the observer change while the wavelength remains unchanged. In contrast, relativists see the frequency and the wavelength change while the speed of the light waves relative to the observer remains unchanged, Divine Einstein, yes we all believe in relativity, relativity, relativity:

Introductory Astronomy: Doppler Effect Basics

Dr Ricardo Eusebi: "f'=f(1+v/c). Light frequency is relative to the observer. The velocity is not though. The velocity is the same in all the reference frames."

http://www.lp2i-poitiers.fr/doc/aps/albatros/uk/pages/doppleffet.html
"The observer moves closer to the source. The wave received has a shorter wavelength (higher frequency) than that emitted by the source. The observer moves away from the source. The wave received has a longer wavelength (lower frequency) than that emitted by the source."