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Why is 'x' the unknown?

TED2012 · 3:57 · Filmed Feb 2012
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Why is 'x' the symbol for an unknown? In this short and funny talk, Terry Moore gives the surprising answer.

pin This talk was presented at an official TED conference, and was featured by our editors on the home page.
Thinker
Terry Moore is the director of the Radius Foundation, a forum for exploring and gaining insight from different worldviews. Full bio

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