Another speed of light: how to test it?
32625
More than one time dimension
26363
How does faster than light travel violate causality?
120679
Rømer's determination of the speed of light
94646
If a car is travelling faster than the speed of light, do the headlights still work?
124797
What is the speed of time?
67127
Does the speed of light vary in non-inertial frames?
15372
How does light know which path is fastest?
128320
In superluminal phase velocities, what is it that is traveling faster than light?
2754
Why and how is the speed of light in vacuum constant, i.e., independent of reference frame?
68058
Is it possible to determine the slit a photon went through in the double slit experiment by measuring its flight time?
119953
What is the meaning of speed of light $c$ in $E=mc^2$?
27825
Bending of light - photon's inertia instead of mass
21755
Can a ultracentrifuge be used to test general relativity?
90147
Do light experience Doppler shift along and against frame dragging?
80291
Relativistic velocity addition from time dilation
137260
How is quantum mechanics compatible with the speed of light limit?
4132
What is the closest general-relativistic equivalent of a "time slice"?