ThinkGeek :: Pi By Numbers

What is Pi? Some might define it as the ratio of a circle's circumference divided by its diameter. Others might think it's an irrational number that's impossible to know completely. Still others might
sent Sep 27, 2009 
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robert Added Sep 27, 2009  
What a cool idea!
mhanoi Added Sep 27, 2009  
T-Shirts :: Pi By Numbers