Definition for Speed of light
From Biology Forums Dictionary
Revision as of 16:42, 7 August 2013 by Nite n day (Talk | contribs) (Created page with "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 figur...")
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.