An observer starts moving toward the light source with speed v:

https://youtube.com/watch?v=bg7O4rtlwEE

Frequency at the moving observer shifts from f=c/λ to f'=(c+v)/λ.

Speed of light relative to the moving observer shifts from c to ?

Wavelength shifts from λ to ?

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

Here is a clue:

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

If the answer to the test is

Speed of light relative to the moving observer shifts from c to c'=c+v. Wavelength shifts from λ to λ (doesn't shift).

that is, if the speed of light is variable, not constant, then, as the following quotations imply, modern physics, predicated on Einstein's 1905 constant-speed-of-light falsehood, is long dead (exists in a zombie state):

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." http://www.kritik-relativitaetstheorie.de/2013/02/the-farce-of-physics-2/ Note: Bryan Wallace wrote "The Farce of Physics" on his deathbed so one should not judge him too severely for (numerous)
imperfections.

Joao Magueijo, Niayesh Afshordi: "The whole of physics is predicated on the constancy of the speed of light...So we had to find ways to change the speed of light without wrecking the whole thing too much." https://motherboard.vice.com/en_us/article/
8q87gk/light-speed-slowed

"He opened by explaining how Einstein's theory of relativity is the foundation of every other theory in modern physics and that the assumption that the speed of light is constant is the foundation of that theory. Thus a constant speed of light is
embedded in all of modern physics and to propose a varying speed of light (VSL) is worse than swearing! It is like proposing a language without vowels." http://www.thegreatdebate.org.uk/VSLRevPrnt.html

"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...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 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." https://www.amazon.com/Faster-Than-Speed-Light-Speculation/
dp/0738205257

Pentcho Valev https://twitter.com/pentcho_valev

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The test again:

An observer starts moving toward the light source with speed v:

https://youtube.com/watch?v=bg7O4rtlwEE

Frequency at the moving observer shifts from f=c/λ to f'=(c+v)/λ.

Speed of light relative to the moving observer shifts from c to ?

Wavelength shifts from λ to ?

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

Here is a clue:

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

Einsteinians would readily produce this answer:

Speed of light relative to the moving observer shifts from c to c (there is no shift: the speed of light is invariable).

The problem is that the above answer entails an obviously preposterous answer for the wavelength:

Wavelength shifts from λ to λ'=λc/(c+v).

That the motion of the observer changes the wavelength of the incoming light from λ to λ'=λc/(c+v) is too preposterous, even by the standards of the Einstein Cult. Accordingly, Einsteinians never teach this deep insight. On the other hand, sane
scientists teach that the wavelength is invariable in this scenario, but the hypnotised scientific community is unable to see that invariable wavelength is fatal for Einstein's relativity (and for modern physics as a whole).

"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

"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

"The wavelength is staying the same in this case." https://youtube.com/watch?v=MHepfIIsKcE

Pentcho Valev https://twitter.com/pentcho_valev

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On Friday, April 28, 2023 at 9:09:49 AM UTC-7, Pentcho Valev wrote:

The test again:
An observer starts moving toward the light source with speed v:

https://youtube.com/watch?v=bg7O4rtlwEE

Frequency at the moving observer shifts from f=c/λ to f'=(c+v)/λ.

Speed of light relative to the moving observer shifts from c to ?

Wavelength shifts from λ to ?

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

Here is a clue:

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

Einsteinians would readily produce this answer:

Speed of light relative to the moving observer shifts from c to c (there is no shift: the speed of light is invariable).

The problem is that the above answer entails an obviously preposterous answer for the wavelength:

Wavelength shifts from λ to λ'=λc/(c+v).

That the motion of the observer changes the wavelength of the incoming light from λ to λ'=λc/(c+v) is too preposterous, even by the standards of the Einstein Cult. Accordingly, Einsteinians never teach this deep insight. On the other hand, sane

scientists teach that the wavelength is invariable in this scenario, but the hypnotised scientific community is unable to see that invariable wavelength is fatal for Einstein's relativity (and for modern physics as a whole).

"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

"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

"The wavelength is staying the same in this case." https://youtube.com/watch?v=MHepfIIsKcE

Pentcho Valev https://twitter.com/pentcho_valev

Measuring light speed is from a collection of waves now.
It makes our math for light speed only an average...

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Statement 1 (Kip Thorne): "If you move toward the [light] source, you see the wavelength shortened but you don't see the speed changed." https://youtu.be/mvdlN4H4T54?t=296

Statement 2. "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

In Einstein's schizophrenic world, Statement 1 and Statement 2 are perfectly compatible. Professors normally teach Statement 2 - without assuming, explicitly or implicitly, that the wavelength remains constant, it would be impossible to reasonably derive
the Doppler frequency shift at the moving observer. Professors should only avoid words suggesting that the speed of light relative to the observer varies - things can become dangerous.

Statement 1 is also taught of course, on more solemn occasions. The speed of light relative to the observer gloriously remains constant, and that's that:

https://youtu.be/-Irlq3TFr8Q?t=81

In this case the variation of the wavelength should not be mentioned - it is too preposterous, even by the standards of the Einstein Cult. Kip Thorne's words above are an exception, and I have found only one analogous exception on the Internet:

John Norton: "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)." http://www.pitt.edu/~jdnorton/teaching/HPS_0410/chapters/big_bang_observed/index.html

Pentcho Valev https://twitter.com/pentcho_valev

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