Saturday 16 June 2012 photo 1/1
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While explaining why seven is a happy number:
"Let's square seven, 'cause all numbers like to be squared – I'm sure that's the root
of all happiness."
LOL, math pun!
http://www.numberphile.com/videos/7happy.html
Tack till Maertha för tipset om den här sidan, den är underbar.
Annons