Discussion:
EINSTEIN DISPROVED BY DOPPLER
(trop ancien pour répondre)
Pentcho Valev
2015-09-10 16:12:04 UTC
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http://www.hep.man.ac.uk/u/roger/PHYS10302/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."

That is, for all types of wave, the speed of the waves relative to the fixed point (observer) is

(ct/λ)(λ/t) = c

The speed of the waves relative to the moving point (observer) is

(ct/λ + vt/λ)(λ/t) = c + v,

in violation of Einstein's relativity.

Pentcho Valev
Pentcho Valev
2015-09-11 14:35:51 UTC
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http://physics.bu.edu/~redner/211-sp06/class19/class19_doppler.html
Professor Sidney Redner: "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'/λ=(v+vO)/λ."

"Relative to you, the waves travel at a higher speed" = Goodbye Einstein!

Pentcho Valev
Pentcho Valev
2015-09-12 06:47:43 UTC
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The Albert Einstein Institute inadvertently disproves Einstein's relativity:

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:

Loading Image... (stationary receiver)

Loading Image... (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."

If the distance between subsequent pulses is d and "the time it takes the source to emit three pulses" is t, then the speed of the pulses relative to the source is

3d/t = c,

and relative to the receiver is

4d/t = (4/3)c,

clearly in violation of Einstein's relativity.

Pentcho Valev
Pentcho Valev
2015-09-19 18:21:00 UTC
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Jim Al-Khalili (15:33): "He [Einstein] argued that we have to forget all about the idea that light is a wave and think of it instead as a stream of tiny bullet-like particles."

Then the speed of light does depend on the speed of the light source, as predicted by Newton's emission theory of light and confirmed by the Michelson-Morley experiment:

http://books.google.com/books?id=JokgnS1JtmMC
Relativity and Its Roots, Banesh Hoffmann, p.92: "There are various remarks to be made about this second principle. For instance, if it is so obvious, how could it turn out to be part of a revolution - especially when the first principle is also a natural one? Moreover, if light consists of particles, as Einstein had suggested in his paper submitted just thirteen weeks before this one, the second principle seems absurd: A stone thrown from a speeding train can do far more damage than one thrown from a train at rest; the speed of the particle is not independent of the motion of the object emitting it. And if we take light to consist of particles and assume that these particles obey Newton's laws, they will conform to Newtonian relativity and thus automatically account for the null result of the Michelson-Morley experiment without recourse to contracting lengths, local time, or Lorentz transformations. Yet, as we have seen, Einstein resisted the temptation to account for the null result in terms of particles of light and simple, familiar Newtonian ideas, and introduced as his second postulate something that was more or less obvious when thought of in terms of waves in an ether. If it was so obvious, though, why did he need to state it as a principle? Because, having taken from the idea of light waves in the ether the one aspect that he needed, he declared early in his paper, to quote his own words, that "the introduction of a 'luminiferous ether' will prove to be superfluous."

Pentcho Valev

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