Light Speed Invariance: Experiments, Difficulties & Clarification

[weirdoguy]

Could you please provide a link?

https://www.google.com/search?client=firefox-b-d&q=GPS

 

[georgechen]

https://www.google.com/search?client=firefox-b-d&q=GPS

No. I meant the explanation of how GPS proves the invariance of light speed to moving observer.

 

[PeterDonis]

I meant the explanation of how GPS proves the invariance of light speed to moving observer.

This is like knowing that $2 + 3 = 5$ but asking for a proof that $3 + 2 = 5$. Nobody is going to bother to write down an explicit proof since it is already a well established fact that addition is commutative. Similarly, nobody is going to bother to write down an explicit explanation of how GPS proves that only relative motion is physically meaningful, since it is already a well established fact that the principle of relativity is true.

In other words, your question has been answered. The fact that you obstinately refuse to accept the answer does not mean the answer is invalid. It's valid.

Thread closed.

 

[Dale]

Is there any experimental proof of the invariance of light speed to observers?

I am going to abuse my mentor power to post the Experimental Basis of SR FAQ:

http://www.edu-observatory.org/physics-faq/Relativity/SR/experiments.html

All of the isotropy experiments and several of the Doppler experiments directly answer your question.