Originally Posted by Yetti
The speed of darkness is 0. It does not move, travel, or propagate in any way. It may appear that way, saying it is relative to the speed of light seem consistant with our observations. One might ask what is the speed of no electricity in a conductor?
Very true. Light is energy, dark is the absence of energy.
I coult argue that there is some speed of electricity in a conductor that has a zero current flow as the electrons in the outer orbital of the inner transission element chosen for the conductor are moving around the atom at a significant rate. Only when there is a current flow does the outer electron jump from one outer orbital to the next and nearly the speed of light. Ironically, only the single layer of outer atoms participate in the exchange of electons.
Sorry, the geek jumped out of me this moring.
Edit. Dark is the absence of visable energy.