James May discusses what exactly a seconds is. He also delves into how time as we know it could have been totally different. This is because the second had many 'rivals' over the years that never got their way.
Outtakes from this video: http://www.youtube.com/watch?v=kLpGHta0kWQ
James May's Q&A:
With his own unique spin, James May asks and answers the oddball questions that we've all wondered about from 'What exactly is one second?' to 'Is invisibility possible?'
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