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tech / sci.physics.relativity / Teaching Variable Speed of Light Implicitly

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* Teaching Variable Speed of Light ImplicitlyPentcho Valev
`- Re: Teaching Variable Speed of Light ImplicitlyPentcho Valev

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Teaching Variable Speed of Light Implicitly

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Subject: Teaching Variable Speed of Light Implicitly
From: pva...@yahoo.com (Pentcho Valev)
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 by: Pentcho Valev - Tue, 23 May 2023 11:36 UTC

V'w=Vw+Vo here: https://youtube.com/watch?v=UHpPsnJNKrk&t=7s

V'=V+Vo here: https://youtube.com/watch?v=MHepfIIsKcE

"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)...Moving Observer. 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'/位 = (V+Vo)/位." http://physics.bu.edu/~redner/211-sp06/class19/class19_doppler.html

V'=V+Vo is obviously an any-wave generalization, but a century of fierce brainwashing prevents the public from deducing the light-wave equation c'=c+v.

George Orwell: "Crimestop means the faculty of stopping short, as though by instinct, at the threshold of any dangerous thought. It includes the power of not grasping analogies, of failing to perceive logical errors, of misunderstanding the simplest arguments if they are inimical to Ingsoc, and of being bored or repelled by any train of thought which is capable of leading in a heretical direction. Crimestop, in short, means protective stupidity."

Pentcho Valev https://twitter.com/pentcho_valev

Re: Teaching Variable Speed of Light Implicitly

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Subject: Re: Teaching Variable Speed of Light Implicitly
From: pva...@yahoo.com (Pentcho Valev)
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 by: Pentcho Valev - Tue, 23 May 2023 20:02 UTC

The formula

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

says that, if the wavelength remains unchanged but still there is a frequency shift, the speed of light is variable and Einstein's relativity is disproved:

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

Max Planck Institute for Gravitational Physics: "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." https://www.einstein-online.info/en/spotlight/doppler/

"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." http://a-levelphysicstutor.com/wav-doppler.php

Even Brian Greene unwittingly disproves Einstein's relativity. In explaining the relativistic Doppler effect for light, at 6:09 in this video

https://youtu.be/MBuLTzj3CWA?t=369,

he derives the formula

饾泿_obs = 1/螖t' = 纬(c-v)/位

where 饾泿_obs is the frequency measured by the moving observer, 纬 is the Lorentz factor, c is the speed of the light relative to the stationary source, v is the speed at which the observer moves away from the source, and 位 is the wavelength.

Accordingly, the speed of the light waves relative to the moving observer is

c' = 位(饾泿_obs) = 纬(c-v),

in violation of Einstein's relativity.

Pentcho Valev https://twitter.com/pentcho_valev

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