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I posted to youtube.com
Randall Munroe: Comics that ask "what if?"
xkcd! Web cartoonist Randall Munroe answers simple what-if…
May 10 2014, 1:27am | Comments »
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I posted to youtube.com
Salman Khan: Let's Use Video to Reinvent Education
Salman Khan talks about how and why he…
March 20 2011, 9:04pm | Comments »
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I posted to vimeo.com
June 22 2010, 5:04pm | Comments »
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I posted to youtube.com
April Fools: Math Class Shadow
This is a trick I did for my…
April 7 2010, 11:55pm | Comments »
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