According to modern physics, the wavelength of light, just like the wavelength of any other waves, VARIES with the speed of the source:

Stephen Hawking, "A Brief History of Time", Chapter 3: "Now imagine a source of light at a constant distance from us, such as a star, emitting waves of light at a constant wavelength. Obviously the wavelength of the waves we receive will be the same as the wavelength at which they are emitted (the gravitational field of the galaxy will not be large enough to have a significant effect). Suppose now that the source starts moving toward us. When the source emits the next wave crest it will be nearer to us, so the distance between wave crests will be smaller than when the star was stationary." http://www.fisica.net/relatividade/s...ry_of_time.pdf

Modern physics is wrong here. The concept that the crests bunch up (the wavelength decreases) in front of the moving source, correct for other waves, is absurd when applied to light. We have

(wavelength) = (speed of light as measured by the source)/(frequency as measured by the source)

All the three quantities in the above equation are invariable - do not vary with the speed of the source. If any of them varied, by measuring the variation, Zoe (the source) would know how fast she is moving, which contradicts the principle of relativity:

https://newt.phys.unsw.edu.au/einste...eird_logic.htm

Since the wavelength does not vary with Zoe's speed, Jasper measures the speed of light to be c'=c+v, not c:

https://pbs.twimg.com/media/D0U6R1RXgAEbxnQ.png

The above analysis gives some (incomplete) justification to a proposition which I believe will become the basic axiom of future physics:

Axiom: The wavelength emitted by any light source is INVARIABLE.

Here are five important conclusions validly deducible from the axiom:

Premise 1: The wavelength of light is invariable.

Premise 2: The formula (frequency) = (speed of light)/(wavelength) is correct.

Conclusion 1: Any frequency shift entails (is caused by) a speed-of-light shift.

Conclusion 2: If the emitter and the observer (receiver) travel towards each other with relative speed v, the speed of light as measured by the observer is c' = c+v.

Conclusion 3: Spacetime is an absurdity. Gravitational waves (ripples in spacetime) don't exist - LIGO conspirators fake them.

Conclusion 4: Light falls in a gravitational field with the same acceleration as ordinary falling bodies - near Earth's surface the accelerations of falling photons is g = 9.8 m/s^2. Accordingly, there is no gravitational time dilation - Einstein's general relativity is nonsense.

Conclusion 5: The Hubble redshift is due to light slowing down as it travels through vacuum. The universe is STATIC, not expanding.

Pentcho Valev