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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
 
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