2017-08-07 17:54:29 UTC
"In our animation, Zoe turns on the headlights of her space ship. She measures the speed of light from her headlights as c with respect to her. Jasper sees her travelling towards him at (let's say) v. He measures the speed of light from her headlights as c. No, not c+v, but just c. Surely this is counter-intuitive? Maybe even crazy?" http://newt.phys.unsw.edu.au/einsteinlight/jw/module3_weird_logic.htm
Jasper measures the speed of the light from Zoe's headlights as c'=c+v, not c, in violation of Einstein's relativity. Here is why:
Moving Zoe measures the speed of the light from her headlights as c, the frequency as f, and the wavelength as λ=c/f. If Zoe were at rest (relative to Jasper) and did the same measurements, she would obtain exactly the same c, f and λ. This is required by the principle of relativity - if any of the quantities, e.g. the wavelength, had different values at rest and at motion, the principle of relativity would be obviously violated.
So the emitted wavelength is the same at rest and at motion, according to the principle of relativity, and yet Einsteinians fraudulently teach that the wavefronts bunch up (the wavelength gets shorter) in front of a moving light source and spread out (the wavelength gets longer) behind it:
red shift blue shift
Stephen Hawking, "A Brief History of Time", Chapter 3: "Now imagine a source of light at a constant distance from us, such as a star, emitting waves of light at a constant wavelength. Obviously the wavelength of the waves we receive will be the same as the wavelength at which they are emitted (the gravitational field of the galaxy will not be large enough to have a significant effect). Suppose now that the source starts moving toward us. When the source emits the next wave crest it will be nearer to us, so the distance between wave crests will be smaller than when the star was stationary."
The moving source does not emit shorter wavelength - it emits faster light. If the speed of the source is v, the speed of the light relative to the observer is c'=c+v, in violation of Einstein's relativity. The increased frequency established in Doppler measurements is due to the increased speed of the light and represents a straightforward experimental refutation of Einstein's 1905 constant-speed-of-light postulate.