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Subject	Replies	Date
Why is the speed of light what it is? I have postulated that the speed of light is directly proportional to the rate of the expansion of the universe....	0	8/5/2014
is there evidence that light travels in straight lines and is the medium if it travels through does not change?	0	9/24/2012
is there evidence that visible light is a small man with a very broad electro magnetic spectrum?	0	9/24/2012