What is the derivation of the speed of light $c$ that is not based on electromagnetism?
17152
Do all massless particles (e.g. photon, graviton, gluon) necessarily have the same speed $c$?
139987
Special Relativity, 2nd Postulate -- Why?
73660
Relativistic Doppler effect derivation
15685
Does slowing light violate relativity?
53455
Relativistic speed/energy relation. Is this correct?
86306
Special Relativity - two beams of light in opposite direction
91265
Has the speed of light changed over time?
128965
Photon pair production at relativistic speeds?
114454
Acceleration in special relativity
57773
About the speed of light and gravity
120679
Rømer's determination of the speed of light
86328
What is the relative speed of two near-light speed particles headed towards each other?
7618
What is the speed of light relative to?
8545
Calculating length contraction at speed $c$ (not near it)
53952
What does $\frac{1}{\sqrt{1 - \frac{v^2}{c^2}}}$ mean with respect to special relativity?
19850
Why is the speed of light defined as 299792458 m/s?
12597
Does the speed of medium affect the path of light?