26-07-2013, 05:57 PM
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Don't have a cow, Man!
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Join Date: Apr 2013
Location: Adelaide, South Australia
Posts: 1,117
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Quote:
Originally Posted by bobson
light, which travels at roughly 299,791km/h,
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The speed of light in vacuum, commonly denoted c, is a universal physical constant important in many areas of physics. Its value is exactly 299,792,458 metres per second, a figure that is exact because the length of the metre is defined from this constant and the international standard for time.[1] Its value is about 186,282 miles per second in imperial units. According to special relativity, c is the maximum speed at which all energy, matter, and information in the universe can travel.
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