Khachaturian Posted September 15, 2009 Author Share Posted September 15, 2009 [Mathemagics](http://www.youtube.com/watch?v=M4vqr3_ROIk&feature=player_embedded#t=915)I just saw it on facebook, watched it all, it's pretty cool.This guy does a whole bunch of calculations in his head, birthday week days, etc. Link to comment Share on other sites More sharing options...
Xavi Posted September 17, 2009 Share Posted September 17, 2009 It's cool for awhile, but I don't have the patience to watch all that. Link to comment Share on other sites More sharing options...
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