Axiom for c

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uitterdijk

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Jan 22, 2026, 5:46:18 AMJan 22
to Sjaak & Lutske

Dear Physicist, Axiom for c

Herewith you are informed about an axiom concerning the velocity c of light in vacuum.

The velocity c of light in vacuum is exclusively defined relative to its source.

Remark: a reflector has to be considered as a source at the moment of reflection.

The argument on which this axiom rests is the following thought experiment.

Imagine a vacuum the size of the universe with only one light source. 

The velocity of the light from this source can only be defined relative to this source, because vacuum can, by definition, not serve as a reference. 

We call this velocity c.


Imagine now a not radiating object at an arbitrary distance and with an arbitrary velocity relative to the said source and ask yourself what the velocity of the just defined light might be relative to this object.

Indeed, only c if this object is in rest relative to the said source!

The conclusion must therefore be that the hypothesis on which modern physics is based – the velocity of light in vacuum equals cregardless of the chosen reference – must be rejected.


If, despite this, it is claimed that the correctness of this hypothesis has been proven experimentally, then such an experiment has either been performed incorrectly, or interpreted incorrectly, or both.


I wish the science in physics a healthy new year.

 

Kind Regards,

Sjaak Uitterdijk


References

https://www.academia.edu/129044540/Physics_since_Einstein

https://sites.google.com/view/sjaakuitterdijkbibliography/books   “Physics since Einstein”

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