Which experiment would be able to detect change in the speed of light?
9463
What is the proof that the universal constants ($G$, $\hbar$, $\ldots$) are really constant in time and space?
16748
What happens if light/particles exceeded the speed of light for a particular medium?
8111
EPR-type experiments and faster-than-light communication using interference effects as signaling mechanism
7618
What is the speed of light relative to?
86328
What is the relative speed of two near-light speed particles headed towards each other?
56297
What is the status of existing measurements of the speed of gravity?
8367
What do physicists mean when they say "speed of light"?
27820
What's wrong with this experiment showing that either FTL communication is possible or complementarity doesn't hold?
156818
Doppler Shift when Light Travels Through Two Different Mediums
67661
Is there an observable of time?
12597
Does the speed of medium affect the path of light?
23628
Has a double slit experiment ever been done using a track chamber or even contemplated?
62710
Schrodinger's cat experiment
112965
Are virtual particles limited by the speed of light?
62039
What does a sphere moving close to the speed of light look like?
18029
Prospects for detection of gravitons?
475
Would time freeze if you could travel at the speed of light?