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4th Gear
Joined: Mar 2009
Posts: 3,042
From: Indiana
BTW.. Google is your friend 
http://www.physicsforums.com/showthread.php?t=41707
Thought you should have used this one:
http://www.physicsforums.com/showthread.php?t=41707
Thought you should have used this one:
c, the speed of light in vacuum, is a fundamental constant of nature, to wit 299.792.458 m/s precisely (because it defines the meter). So it cannot change. The speed of light in a can change though depending on the medium....
The speed of darkness is 0. It does not move, travel, or propigate in any way. It may appear that way, and the comments 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.
The speed of darkness is 0. It does not move, travel, or propigate in any way. It may appear that way, and the comments 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.
