Why the speed of light is independent of the relative motion of observer?
2754
Why and how is the speed of light in vacuum constant, i.e., independent of reference frame?
15685
Does slowing light violate relativity?
22402
If I am travelling on a car at around 60 km/h, and I shine a light, does that mean that the light is travelling faster than the speed of light?
114225
If movement is relative, why is it said that moving objects have kinetic energy?
96657
The speed of light as it approaches a massive body
76238
Why is the relative velocity of B with respect to A negative of the relative velocity of A with respect to B?
81663
Why does gravity travel at the speed of light?
45888
Minkowski metric -- why does it follow from the constancy of the speed of light?
141546
Time and distance in a photon's frame of reference
47242
Time dilation due to change in speed
115786
Speed of gravitational waves and light
128320
In superluminal phase velocities, what is it that is traveling faster than light?
88879
Time dilation as an observer in special relativity
61988
Why do two beams of light pass through one another without interacting?
12597
Does the speed of medium affect the path of light?
80291
Relativistic velocity addition from time dilation
142441
If rest mass does not change with $v$ then why is infinite energy required to accelerate an object to the speed of light?