kanna sushma Posted July 29, 2014 Share Posted July 29, 2014 modern definition of metre Link to comment Share on other sites More sharing options...
Delta1212 Posted July 29, 2014 Share Posted July 29, 2014 The length of the path travelled by light in vacuum during a time interval of 1/299,792,458 of a second. Link to comment Share on other sites More sharing options...
Endy0816 Posted July 30, 2014 Share Posted July 30, 2014 (edited) Also known as what happens when someone had to write, 299,792,456.2±1.1 m/s once too often. Edited July 30, 2014 by Endy0816 Link to comment Share on other sites More sharing options...
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