Einstein's 1905 constant-speed-of-light axiom, originally a tenet of the ether theory, can be formulated in this way:

The speed of light, as measured by the observer (receiver), does not vary with the speed of the light source.

Since this axiom is false, it is tempting to try to build future physics on the correct alternative:

The speed of light, as measured by the observer (receiver), VARIES with the speed of the light source, as posited by Newton's theory.

However there is a more fundamental axiom of which the Newtonian variation of the speed of light is a consequence - future physics will be based on this axiom:

The wavelength emitted by any light source is INVARIABLE.

I have discussed the justification of the new axiom elsewhere. Here are five important conclusions validly deducible from it:

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