Thursday, March 28, 2013

Speed Of Light In Vacuum Is Not Actually Constant, Study Finds

Oh, and a vacuum may not really be void of matter.  

Light from the sun speeds toward Earth 

Light from the sun speeds toward Earth Kieff on Wikimedia Commons
 
Can you trust nothing in life? A new physics paper suggests that the speed of light in a vacuum may not be constant, and that a vacuum isn't actually entirely empty of stuff.

The paper, by a team of French physicists, finds that the speed of a photon in a vacuum fluctuates by 50 quintillionths of a second per square meter, the Christian Science Monitor reported. In addition, it posits that vacuums may actually have extremely short-lived particles in them that keep appearing and disappearing.

For the rest of the story: http://www.popsci.com/science/article/2013-03/speed-light-vacuum-varies-slightly-study-finds?src=SOC

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