Discussion:
Einstein's Constant Speed of Light Is Nonsense
(trop ancien pour répondre)
Pentcho Valev
2016-12-06 08:16:48 UTC
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By combining his 1905 postulates Einstein deduced the obvious nonsense that the speed of light relative to the observer is independent of the speed of the observer (any reasonable interpretation of the Doppler effect shows that the speed of light is different for differently moving observers). Einstein "explained" the nonsense in terms of spacetime - an even greater nonsense that killed physics in the end:

http://www.aip.org/history/exhibits/einstein/essay-einstein-relativity.htm
John Stachel: "But this seems to be nonsense. How can it happen that the speed of light relative to an observer cannot be increased or decreased if that observer moves towards or away from a light beam? Einstein states that he wrestled with this problem over a lengthy period of time, to the point of despair."

https://www.aip.org/history/exhibits/einstein/essay-einsteins-time.htm
Peter Galison: "Only by criticizing the foundational notions of time and space could one bring the pieces of the theory - that the laws of physics were the same in all constantly moving frames; that light traveled at the same speed regardless of its source - into harmony."

That the speed of light relative to the observer CANNOT be independent of the speed of the observer is obvious. When the initially stationary observer starts moving towards the light source, with speed v, he sees the same wavelength (λ'=λ) but a different frequency (f'=(c+v)/λ) and a different speed of light (c'=c+v), in violation of Einstein's relativity:

http://farside.ph.utexas.edu/teaching/315/Waveshtml/node41.html
"Thus, the moving observer sees a wave possessing the same wavelength [...] but a different frequency [...] to that seen by the stationary observer."

http://www.hep.man.ac.uk/u/roger/PHYS10302/lecture18.pdf
Roger Barlow: "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://physics.bu.edu/~redner/211-sp06/class19/class19_doppler.html
"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."

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." [end of quotation]

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 (observer) is greater than their speed relative to the source, in violation of Einstein's relativity.

Barlow's lecture quoted above introduces relativistic corrections (time dilation) and the frequency measured by the moving observer becomes

f' = γ(c+v)/λ

The speed of the light relative to the moving observer is, accordingly,

c' = λf' = γ(c+v)

Clearly, Einstein's relativity is violated even if the relativistic corrections are taken into account.

In order to prevent Divine Albert's Divine Theory from collapsing, Einsteinians avoid the dangerous formula f'=γ(c+v)/λ and teach the equivalent relation

f'/f = sqrt((1+v/c)/(1-v/c))

where the variation of the speed of light is safely hidden.

Pentcho Valev
Pentcho Valev
2016-12-06 20:13:54 UTC
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Panic in Einstein schizophrenic world:

http://www.telegraph.co.uk/technology/2016/12/06/speed-light-discovered/
"But the researchers said they spent a lot of time working on a theory that wouldn't destabilise our understanding of physics. "The whole of physics is predicated on the constancy of the speed of light," Joao Magueijo told Motherboard. "So we had to find ways to change the speed of light without wrecking the whole thing too much."

"The whole thing" is doomed, Joao Magueijo. Experiments have already shown, unequivocally, that the speed of light is not constant:

http://phys.org/news/2016-03-optical-slower.html
"Researchers at the University of Ottawa observed that twisted light in a vacuum travels slower than the universal physical constant established as the speed of light by Einstein's theory of relativity. [...] In The Optical Society's journal for high impact research, Optica, the researchers report that twisted light pulses in a vacuum travel up to 0.1 percent slower than the speed of light, which is 299,792,458 meters per second. [...] If it's possible to slow the speed of light by altering its structure, it may also be possible to speed up light. The researchers are now planning to use FROG to measure other types of structured light that their calculations have predicted may travel around 1 femtosecond faster than the speed of light in a vacuum."

http://science.sciencemag.org/content/347/6224/857
"Spatially structured photons that travel in free space slower than the speed of light" Science 20 Feb 2015: Vol. 347, Issue 6224, pp. 857-860

http://rt.com/news/225879-light-speed-slow-photons/
"Physicists manage to slow down light inside vacuum [...] ...even now the light is no longer in the mask, it's just the propagating in free space - the speed is still slow. [...] "This finding shows unambiguously that the propagation of light can be slowed below the commonly accepted figure of 299,792,458 metres per second, even when travelling in air or vacuum," co-author Romero explains in the University of Glasgow press release."

http://www.upi.com/Science_News/2015/01/23/Scientists-slow-down-light-particles/1191422035480
"The speed of light is a limit, not a constant - that's what researchers in Glasgow, Scotland, say. A group of them just proved that light can be slowed down, permanently."

http://www.gmanetwork.com/news/story/417655/scitech/science/exclusive-this-pinay-physicist-can-slow-down-light-without-touching-it
"Although the maximum speed of light is a cosmological constant - made famous by Einstein's Special Theory of Relativity and E=mc^2 - it can, in fact, be slowed down: that's what optics do."


"Glasgow researchers slow the speed of light"

http://www.cbsnews.com/news/faster-than-the-speed-of-light/
"For generations, physicists believed there is nothing faster than light moving through a vacuum -- a speed of 186,000 miles per second. But in an experiment in Princeton, N.J., physicists sent a pulse of laser light through cesium vapor so quickly that it left the chamber before it had even finished entering. The pulse traveled 310 times the distance it would have covered if the chamber had contained a vacuum. Researchers say it is the most convincing demonstration yet that the speed of light -- supposedly an ironclad rule of nature -- can be pushed beyond known boundaries, at least under certain laboratory circumstances. [...] The results of the work by Wang, Alexander Kuzmich and Arthur Dogariu were published in Thursday's issue of the journal Nature."

http://www.nature.com/nature/journal/v406/n6793/full/406277a0.html
Nature 406, 277-279 (20 July 2000): "...a light pulse propagating through the atomic vapour cell appears at the exit side so much earlier than if it had propagated the same distance in a vacuum that the peak of the pulse appears to leave the cell before entering it."

Pentcho Valev

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