I don't have any sources available right now but this is what I remember from my various class on relativity (I have a B.Sc. in Physics):
Some "things" can travel faster then the speed of light. These "things" do not have mass (and we probably shouldn't call them things at all).
One example is the point where the blades of scissors cross. This point can move faster then the speed of light while none of the scissors mass is move faster then the speed of light. Another example has to do with the speed of light in a medium where one "portion" of the light travels faster then c while the other is slower... but that is much too complicated to explain here.
But even if some "things" can move faster then the speed of light no information can ever be transmitted by such "things". In the case of light in a medium you need both "portions" in order to transmit information. The assumption that no information can travel faster then the speed of light is fundamental to Einstein's theories. If it was found that information can travel faster then the speed of light then the theories of relativity (both special and general)
would have to be re-worked.
Anyway... that is my 2cents. I wish I had a source for you but I don't.
Slashdot Mirror
Glass - Solid or Liquid?
Glass - Solid or Liquid?
Some "things" can travel faster then the speed of light. These "things" do not have mass (and we probably shouldn't call them things at all). One example is the point where the blades of scissors cross. This point can move faster then the speed of light while none of the scissors mass is move faster then the speed of light. Another example has to do with the speed of light in a medium where one "portion" of the light travels faster then c while the other is slower... but that is much too complicated to explain here.
But even if some "things" can move faster then the speed of light no information can ever be transmitted by such "things". In the case of light in a medium you need both "portions" in order to transmit information. The assumption that no information can travel faster then the speed of light is fundamental to Einstein's theories. If it was found that information can travel faster then the speed of light then the theories of relativity (both special and general) would have to be re-worked.
Anyway... that is my 2cents. I wish I had a source for you but I don't.