So, the speed is dictated by what it passes through...
The "speed of light" is the speed the light travels without being slowed by matter.
I have heard that light can not escape the gravitational pull generated by a black hole.
That would indicate strength > speed.
If the light particles were traveling directly toward the field would the pull not increase the speed?
Interestingly that means if light runs in an exact line away from a black hole, that line isn't twisted, which means that energy can escape from a black hole (in the way of mass-less photon waves).
Stephen Hawkins first drew that conclusion and he became famous for it.
You can see a black hole (if you have x-Ray vision). This is extremely interesting, because former interpretations suggested you couldn't ever find any trace of a black hole besides it's pulling force, which would not be measurable in interstellar distances, since the pulling forces of an even spread of black holes would nullify. (Edit: It would also black out the stars behind it, but that only would make discovery feasible by really "going there", not telescopes.)
Last edited by Ronin; 01-21-2014 at 08:50 PM.
Nothing can travel faster than light's potential speed, however there appears to be a loophole. By bending space, one can move at a normal no-faster-than-light speed while still traveling further than light could in that same amount of time (except for light that's also passing through that bent space, because it's still faster).
There've actually already been some promising results to some of these "warp" experiments, it's definitely worth looking up.
Faster than light = time travel???