Most of the TED talks I've seen so far are informative, thought-provoking or inspirational (or all of the above). This one's just plain entertaining.
"Mathemagician" Arthur Benjamin puts on an amazing display of mental calculations, racing people with calculators to solve a number of equations. Even if you hate math (like some people I know, who shall remain anonymous), you'll enjoy his amusing act.
July 11, 2008
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Fun to watch, thanks. I sent the link to Brian, who multiplies two 3-digit numbers together in his head for one of the classes he teaches. He usually gets it right...
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