Originally Posted By: Shannow
I likened it to a hose full of marbles.
Push a marble in, and another instantaneously pops out the other end, with nothing moving at the speed of light.
It's not instantaneous. Pushing one marble in generates a pressure wave that travels at whatever the speed of sound is in the marbles themselves. It's a LOT slower than the speed of light. It only looks instantaneous because the distance involved (i.e. the length of the hose) is small.
I likened it to a hose full of marbles.
Push a marble in, and another instantaneously pops out the other end, with nothing moving at the speed of light.
It's not instantaneous. Pushing one marble in generates a pressure wave that travels at whatever the speed of sound is in the marbles themselves. It's a LOT slower than the speed of light. It only looks instantaneous because the distance involved (i.e. the length of the hose) is small.
