Is the 74.2km/sec per megaparsec accidental?
62168
Hubble time, the age of the Universe and expansion rate
12597
Does the speed of medium affect the path of light?
19850
Why is the speed of light defined as 299792458 m/s?
67127
Does the speed of light vary in non-inertial frames?
27453
Simple explanation of relation between speed of sound and r.m.s. speed?
138834
A question about special relativity theory
128320
In superluminal phase velocities, what is it that is traveling faster than light?
44566
Is (rest) mass conserved in special relativity?
120621
Speed of Dark experiment, does it *really* travel faster than light?
123854
Would time speed up near a large body of negative mass relative to observers in micro gravity?
74211
Protons and Neutrons Overshoot Actual Mass?
53455
Relativistic speed/energy relation. Is this correct?
25121
Is it really possible to break the speed of light by flicking your wrist with a laser pointer?
20974
Time dilation clock experiment: what would happen if the clock were flipped 90 degrees?
61714
Can One-Way Speed of Light be Instantaneous?
56297
What is the status of existing measurements of the speed of gravity?
46600
Is escape velocity really a velocity (rather than a speed)?