When we discuss moving faster than the speed of light, we are really talking...
The speed of a shadow is therefor not restricted to be less than the speed...
No, if you were able to travel faster than the speed of light, you would not have a shadow because light would not be able to keep up with your speed to create one. The theory of relativity states that nothing with mass can travel at or faster than the speed of light.
Travelling faster than the speed of light is not possible, therefore no galaxies have travelled or are travelling faster than the speed of light.
* The speed of light in a vacuum, * The speed of sound,
It doesn't. Shadow is the absence of light, it's what you have when there isn't any light present. If you turn off a lamp, it'd still be light in the room until the last photon that left the lamp has made it to the wall, had a few bounces and been absorbed as heat. Saying that shadow travels faster than light is like saying that empty space behind a train is faster than the train.
The speed of knowledge/information travels faster than the speed of light.
Nothing has ever gone faster than the speed of light.
Concorde is a commercial supersonic aircraft that can travel at speeds over twice the speed of sound, but it cannot fly faster than the speed of light. According to Einstein's theory of relativity, nothing with mass can reach or exceed the speed of light in a vacuum.
No, not quite. We know that for sure, because nothingmoves faster than the speed of light.
Faster than the speed of Sound!!!!
No. Nothing is faster than the speed of light. Even the fastest wind doesn't come close.
The speed of electromagnetic radiation of all kinds, including light, is faster than the speed of anything else.
No known particles can travel faster than the speed of light in a vacuum, according to the theory of special relativity. In a medium like water, particles such as neutrinos can travel faster than the speed of light in that medium, but not in a vacuum. In solids, sound waves can propagate faster than light as well.