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Impossible Constancy of the Speed of Light



 
 
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Old January 2nd 16, 06:51 PM posted to sci.astro
Pentcho Valev
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Default Impossible Constancy of the Speed of Light

Einsteinians teach that, for all kinds of waves (light waves included), the wavefronts bunch up (the wavelength decreases) in front of a wave source which starts moving towards the observer:

http://www.einstein-online.info/imag...ler_static.gif (stationary source)

http://www.einstein-online.info/imag...ource_blue.gif (moving source)

https://www.youtube.com/watch?v=h4OnBYrbCjY
"The Doppler Effect: what does motion do to waves?"

http://www.fisica.net/relatividade/s...ry_of_time.pdf
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."

For waves other than light waves the moving source does indeed emit shorter wavelength, and the shortening is measured by all observers, including one attached to the wave source, to be the same. That is, all observers measure the wavelength to be L when the source is stationary, and then all of them measure the wavelength to be L' (LL') when the source is moving.

For light waves this is obviously not the case - an observer attached to the light source measures the wavelength to be L when both the source and the observer are stationary, and then he measures the wavelength to be L again when the source starts moving, which means that the wavefronts DO NOT BUNCH UP in front of the moving source.

Conclusion: The moving light source does not emit shorter wavelength. Rather, it emits faster light. If the source starts moving towards the observer with speed v, the speed of the light relative to the stationary observer shifts from c to c'=c+v, as predicted by Newton's emission theory of light and in violation of Einstein's relativity. Accordingly, the frequency measured by the stationary observer shifts from f=c/L to f'=c'/L, where L is the wavelength and f is the frequency measured when the source is stationary.

Pentcho Valev
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  #2  
Old January 3rd 16, 11:59 PM posted to sci.astro
Pentcho Valev
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Posts: 7,497
Default Impossible Constancy of the Speed of Light

The Doppler effect unequivocally shows that the speed of light is not constant:

http://www.einstein-online.info/spotlights/doppler
Albert Einstein Institute: "The frequency of a wave-like signal - such as sound or light - depends on the movement of the sender and of the receiver. This is known as the Doppler effect. (...) Here is an animation of the receiver moving towards the source:

http://www.einstein-online.info/imag...ler_static.gif (stationary receiver)

http://www.einstein-online.info/imag...ector_blue.gif (moving receiver)

By observing the two indicator lights, you can see for yourself that, once more, there is a blue-shift - the pulse frequency measured at the receiver is somewhat higher than the frequency with which the pulses are sent out. This time, the distances between subsequent pulses are not affected, but still there is a frequency shift: As the receiver moves towards each pulse, the time until pulse and receiver meet up is shortened. In this particular animation, which has the receiver moving towards the source at one third the speed of the pulses themselves, four pulses are received in the time it takes the source to emit three pulses."

Since "four pulses are received in the time it takes the source to emit three pulses", the speed of the pulses relative to the receiver is greater than their speed relative to the source, in violation of Einstein's relativity..

Pentcho Valev
 




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