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EINSTEIN'S RELATIVITY INCOMPATIBLE WITH DOPPLER EFFECT



 
 
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  #1  
Old August 14th 14, 10:21 PM posted to sci.astro
Pentcho Valev
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Default EINSTEIN'S RELATIVITY INCOMPATIBLE WITH DOPPLER EFFECT

http://www.einstein-online.info/spotlights/doppler
Albert Einstein Institute: "Here is an animation of the receiver moving towards the source:

http://www.einstein-online.info/imag...ler_static.gif

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."

The speed of the light pulses relative to the stationary receiver is:

c = d/t

where d is the distance between subsequent pulses and t is the time until pulse and (stationary) receiver meet up. For the moving receiver, "the time until pulse and receiver meet up is shortened". This means that the speed of the pulses relative to the moving receiver is:

c' = d/t' = c + v

where t' is the time until pulse and moving receiver meet up (tt') and v is the speed of the receiver relative to the source.

The speed of the pulses (relative to the receiver) does vary with the speed of the receiver, in violation of Einstein's relativity.

Pentcho Valev
  #2  
Old August 15th 14, 07:51 AM posted to sci.astro
Pentcho Valev
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Default EINSTEIN'S RELATIVITY INCOMPATIBLE WITH DOPPLER EFFECT

http://farside.ph.utexas.edu/teachin...ml/node41.html
University of Texas: "Thus, the moving observer sees a wave possessing the same wavelength (...) but a different frequency (...) to that seen by the stationary observer. This phenomenon is known as the Doppler effect."

That is, in accordance with the formula

(frequency) = (speed of light)/(wavelength),

the speed of light waves (relative to the observer) varies with the speed of the observer, in violation of Einstein's relativity.

http://researcher.nsc.gov.tw/public/...1016202571.pdf
Fang-Yuh Lo, Department of Physics, National Taiwan Normal University: "Observer moves toward source: frequency becomes higher. Observer moves away from source: frequency becomes lower. How much higher (lower)? Wavelength does not change. Change in velocity: Vnew=Vwave±Vobs. (...) Examples: sirens of a traveling vehicle; speed radar of police; red shift in light - astronomical observation."

That is, if the observer starts moving towards / away from the light source with (small) speed v, the speed of the light relative to him shifts from c to c'=c±v, and this shift causes the frequency measured by him to shift from f=c/L to f'=c'/L, where L is the wavelength:

http://www.youtube.com/watch?v=bg7O4rtlwEE
"Doppler effect - when an observer moves towards a stationary source. ...the velocity of the wave relative to the observer is faster than that when it is still."

http://www.youtube.com/watch?v=SC0Q6-xt-Xs
"Doppler effect - when an observer moves away from a stationary source. ....the velocity of the wave relative to the observer is slower than that when it is still."

Pentcho Valev
  #3  
Old August 15th 14, 04:01 PM posted to sci.astro
Pentcho Valev
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Posts: 8,078
Default EINSTEIN'S RELATIVITY INCOMPATIBLE WITH DOPPLER EFFECT

A light source emits a series of pulses the distance between which is d (e.g. d=300000km). A stationary receiver/observer measures the frequency of the pulses to be f=c/d:

http://www.einstein-online.info/imag...ler_static.gif

The receiver starts moving with (small) speed v towards the light source - the measured frequency shifts from f=c/d to f'=(c+v)/d:

http://www.einstein-online.info/imag...ector_blue.gif

Why does the frequency shift from f=c/d to f'=(c+v)/d ?

Answer 1: Because the speed of the pulses relative to the receiver shifts from c to c'=c+v:

http://physics.bu.edu/~redner/211-sp...9_doppler.html
"The Doppler effect is the shift in frequency of a wave that occurs when the wave source, or the detector of the wave, is moving. Applications of the Doppler effect range from medical tests using ultrasound to radar detectors and astronomy (with electromagnetic waves). (...) We will focus on sound waves in describing the Doppler effect, but it works for other waves too. (....) Let's say you, the observer, now move toward the source with velocity vO. You encounter more waves per unit time than you did before. Relative to you, the waves travel at a higher speed: v'=v+vO. The frequency of the waves you detect is higher, and is given by: f'=v'/(lambda)=(v+vO)/(lambda)."

http://a-levelphysicstutor.com/wav-doppler.php
"vO is the velocity of an observer moving towards the source. This velocity is independent of the motion of the source. Hence, the velocity of waves relative to the observer is c + vO. (...) The motion of an observer does not alter the wavelength. The increase in frequency is a result of the observer encountering more wavelengths in a given time."

If Answer 1 is correct, both Einstein's relativity and modern physics as a whole collapse:

http://www.amazon.com/Faster-Than-Sp.../dp/0738205257
Faster Than the Speed of Light, Joao Magueijo: "If there's one thing every schoolboy knows about Einstein and his theory of relativity, it is that the speed of light in vacuum is constant. No matter what the circumstances, light in vacuum travels at the same speed - a constant that physicists denote by the letter c: 300,000 km per second, or as Americans refer to it, 186,000 miles per second. The speed of light is the very keystone of physics, the seemingly sure foundation upon which every modern cosmological theory is built, the yardstick by which everything in the universe is measured. (...) The only aspect of the universe that didn't change was the speed of light.. And ever since, the constancy of the speed of light has been woven into the very fabric of physics, into the way physics equations are written, even into the notation used. Nowadays, to "vary" the speed of light is not even a swear word: It is simply not present in the vocabulary of physics."

http://www.kritik-relativitaetstheor...-of-physics-2/
Bryan Wallace: "Einstein's special relativity theory with his second postulate that the speed of light in space is constant is the linchpin that holds the whole range of modern physics theories together. Shatter this postulate, and modern physics becomes an elaborate farce! (...) The speed of light is c+v."

Answer 2 (possibly preventing the collapse of modern physics): Because...

There is no reasonable statement that can become Answer 2. Yet there is an idiotic thesis that Einsteinians sometimes use as Answer 2: The motion of the receiver/observer changes either the incoming light's wavelength (the distance between subsequent pulses) or some miraculous "MEASURING INSTRUMENTS" of the receiver/observer - the result in both cases is that the moving observer sees a light with a different wavelength (measures the distance between subsequent pulses to be different) but the same speed c, Divine Einstein, yes we all believe in relativity, relativity, relativity, that's the way ahah ahah we like it, ahah ahah:

http://astro.berkeley.edu/~mwhite/da...plershift.html
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://www.lp2i-poitiers.fr/doc/aps/...oppleffet.html
"The observer moves closer to the source. The wave received has a shorter wavelength (higher frequency) than that emitted by the source. The observer moves away from the source. The wave received has a longer wavelength (lower frequency) than that emitted by the source."

http://www.pitt.edu/~jdnorton/teachi...ved/index.html
John Norton: "Every sound or light wave has a particular frequency and wavelength. In sound, they determine the pitch; in light they determine the color. Here's a light wave and an observer. If the observer were to hurry towards the source of the light, the observer would now pass wavecrests more frequently than the resting observer. That would mean that moving observer would find the frequency of the light to have increased (AND CORRESPONDINGLY FOR THE WAVELENGTH - THE DISTANCE BETWEEN CRESTS - TO HAVE DECREASED)."

https://groups.google.com/d/msg/sci....0/1rvrcjF4JlMJ
Tom Roberts: "Wavelength is not an intrinsic property of light, so it cannot be discussed independent of how it is measured. But it is clear that in vacuum the light ray itself is unchanged as it propagates. Differently moving observers will measure different wavelengths for a given light ray, because their MEASURING INSTRUMENTS are oriented differently in spacetime, and such a measurement inherently PROJECTS the light ray onto the measuring instrument."

http://lewebpedagogique.com/physique...8doppler_p.gif

Pentcho Valev
 




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