Tom Roberts' idea of measured wavelength of light that depends on the speed of the observer, no matter how silly, is still the only hope for special relativity and deserves special attention:

https://groups.google.com/d/msg/sci....o/0oN0istr3lgJ
Tom Roberts: "...yes, from experimental measurements we know that the motion of an observer does not affect the measured wavelength of sound waves. (....) All that matters is the world we inhabit, and in that world, the wavelength of a light wave is NOT an intrinsic aspect of the wave, but rather represents a RELATIONSHIP between wave and measuring instrument. Differently moving observers in different inertial frames can AND DO measure different values for the wavelength of a given light wave."

That is, by changing his speed relative to the emitter, the observer does not change the incoming light but changes his measuring instruments which give a different value of the wavelength. The mechanism is obscure but the respective calculations are extremely simple:

If the speed of the observer relative to the emitter shifts from zero to v and the frequency measured by the observer shifts accordingly from f to f', then the wavelength as provided by the measuring instrument of the observer shifts from L to L'=fL/f'. So, if c' is the speed of the light relative to the moving observer, we have:

c' = f'L' = fL = c, Divine Einstein, yes we all believe in relativity, relativity, relativity.

http://www.haverford.edu/physics/songs/divine.htm
DIVINE EINSTEIN. "No-one's as dee-vine as Albert Einstein not Maxwell, Curie, or Bohr! His fame went glo-bell, he won the Nobel - He should have been given four! No-one's as dee-vine as Albert Einstein, Professor with brains galore! No-one could outshine Professor Einstein! He gave us special relativity, That's always made him a hero to me! No-one's as dee-vine as Albert Einstein, Professor in overdrive!"

http://www.youtube.com/watch?v=5PkLLXhONvQ
We all believe in relativity, relativity, relativity. Yes we all believe in relativity, relativity, relativity. Everything is relative, even simultaneity, and soon Einstein's become a de facto physics deity. 'cos we all believe in relativity, relativity, relativity. We all believe in relativity, relativity, relativity. Yes we all believe in relativity, relativity, relativity.

Pentcho Valev