Professor Martin White, UC Berkeley, has found an original way to brainwash his students. Since the motion of the observer SHOULD change the wavelength of the incoming light (otherwise Einstein's relativity and modern physics collapse), heretic doubts
will be avoided if students are convinced that the motion of the observer changes the wavelength of any waves, e.g. sound waves:
Professor Martin White, UC Berkeley: "...the sound waves have a fixed wavelength (distance between two crests or two troughs) only if you're not moving relative to the source of the sound. If you are moving away from the source (or equivalently it is
receding from you) then each crest will take a little longer to reach you, and so you'll perceive a longer wavelength. Similarly if you're approaching the source, then you'll be meeting each crest a little earlier, and so you'll perceive a shorter
wavelength...The same principle applies for light as well as for sound. In detail the amount of shift depends a little differently on the speed, since we have to do the calculation in the context of special relativity. But in general it's just the same:
if you're approaching a light source you see shorter wavelengths (a blue-shift), while if you're moving away you see longer wavelengths (a red-shift)."
http://w.astro.berkeley.edu/~mwhite/darkmatter/dopplershift.html
Here is an illustration of how the motion of the observer breathtakingly changes the wavelength of sound waves:
https://bretagnemontagne.files.wordpress.com/2011/02/23.jpg
More here:
https://twitter.com/pentcho_valev
Pentcho Valev
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