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Impossible Constancy of the Speed of Light



 
 
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  #1  
Old March 28th 16, 12:33 PM posted to sci.astro
Pentcho Valev
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Default Impossible Constancy of the Speed of Light

Einsteinians teach that the moving light source, just like the moving sound source, emits a changed wavelength:

http://phys.org/news/2016-03-nonline...er-effect.html
"The acoustic Doppler effect can be experienced day in the real world every: An ambulance siren sounds sharper closer to the emergency vehicle; when the vehicle pulls away, the siren sound descends. This is due to the change of wavelength of the sound waves, which are compressed or stretched during the movement of the sound source, thus changing its pitch. The effect applies to all kinds of waves, including light waves. Similarly, as a star moves away from Earth, its emitted light wave is stretched, creating the so-called red-shift, i.e. a longer wavelength of light."

True for sound waves, false for light waves - the wavelength emitted by the moving light source is the same as the wavelength emitted by the stationary source:

http://newt.phys.unsw.edu.au/einstei...eird_logic.htm
"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."

That is, moving Zoe measures the speed of the light to be c, the frequency to be f, and the wavelength to be λ=c/f, just as stationary Zoe.

Conclusion: The moving light source does not emit shorter/longer wavelength.. Rather, it emits faster/slower light. If the source starts moving towards the stationary observer with speed v, the speed of the light relative to the 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 observer shifts from f=c/λ to f'=c'/λ, where λ is the wavelength and f is the frequency measured when the source is stationary. Exactly the same shifts, from c to c'=c+v and from f=c/λ to f'=(c+v)/λ, take place when the light source is permanently stationary but the observer starts moving towards the source with speed v:

http://www.hep.man.ac.uk/u/roger/PHY.../lecture18.pdf
"The Doppler effect - changes in frequencies when sources or observers are in motion - is familiar to anyone who has stood at the roadside and watched (and listened) to the cars go by. It applies to all types of wave, not just sound. (...) Moving Observer. Now suppose the source is fixed but the observer is moving towards the source, with speed v. In time t, ct/λ waves pass a fixed point. A moving point adds another vt/λ. So f'=(c+v)/λ."

http://rockpile.phys.virginia.edu/mod04/mod34.pdf
"Now let's see what this does to the frequency of the light. We know that even without special relativity, observers moving at different velocities measure different frequencies. (This is the reason the pitch of an ambulance changes as it passes you it doesn't change if you're on the ambulance). This is called the Doppler shift, and for small relative velocity v it is easy to show that the frequency shifts from f to f(1+v/c) [=(c+v)/λ] .... There are relativistic corrections, but these are negligible here."

Pentcho Valev
  #2  
Old March 29th 16, 03:55 PM posted to sci.astro
Pentcho Valev
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Default Impossible Constancy of the Speed of Light

Honest Einsteinians have discovered that the constancy of the speed of light is "a cosmic conspiracy of the highest order":

http://astro.cornell.edu/academics/c...speedlimit.htm
Neil deGrasse Tyson: "If everyone, everywhere and at all times, is to measure the same speed for the beam from your imaginary spacecraft, a number of things have to happen. First of all, as the speed of your spacecraft increases, the length of everything - you, your measuring devices, your spacecraft - shortens in the direction of motion, as seen by everyone else. Furthermore, your own time slows down exactly enough so that when you haul out your newly shortened yardstick, you are guaranteed to be duped into measuring the same old constant value for the speed of light. What we have here is A COSMIC CONSPIRACY OF THE HIGHEST ORDER."

https://plus.maths.org/content/einstein-relativity
David Tong: "Special relativity is where the famous equation E=mc^2 comes from. The central idea of the theory is that there is a speed limit in our Universe. The laws of physics conspire so that nothing can ever travel faster than the speed of light."

http://www.redorbit.com/news/space/1...-limit-042715/
Robert Scherrer: "In fact, the laws for adding and subtracting speeds have to conspire to keep the speed of the light the same no matter how fast or in what direction an observer is moving. The only way to make this happen is for space and time to expand or contact as objects move."

https://www.youtube.com/watch?v=dc3-29dguFs
Brian Greene: "Einstein proposed a truly stunning idea - that space and time could work together, constantly adjusting by exactly the right amount so that no matter how fast you might be moving, when you measure the speed of light it always comes out to be 671000000 miles per hour."

http://www.pbs.org/wgbh/nova/physics...-nutshell.html
Brian Greene: "If space and time did not behave this way, the speed of light would not be constant and would depend on the observer's state of motion.. But it is constant; space and time do behave this way. Space and time adjust themselves in an exactly compensating manner so that observations of light's speed yield the same result, regardless of the observer's velocity."

Pentcho Valev
  #3  
Old March 30th 16, 11:41 PM posted to sci.astro
Pentcho Valev
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Default Impossible Constancy of the Speed of Light

The impossible constancy of the speed of light became possible in 1905, but at a price:

http://negrjp.fotoblog.uol.com.br/im...0819051851.jpg

Pentcho Valev
  #4  
Old April 4th 16, 05:40 PM posted to sci.astro
Pentcho Valev
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Posts: 8,078
Default Impossible Constancy of the Speed of Light

http://physics.stackexchange.com/que...doppler-effect
Question in StackExchange: "I understand Doppler effect in Sound and Water because there we can observe relative speeds. But in case of light, the speed is same in all references so is the change in relative wavelength due to the inability to change relative velocity?"

My answer:

There is no change in wavelength, and in the case of moving observer (receiver) this is obvious:

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...ector_blue.gif

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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