It was Pi Day on Friday March 14th (03/14), a celebration of the mathematical ratio that man has been trying to unlock for millennia. But why are we driven to find the answers behind it? As we're all taught at school, pi represents the number you get when you divide the distance around a circle (its circumference) by the distance across (the diameter).
With just a string and a ruler you can quickly measure that pi must be just over three-and-an-eighth (3.125). With more precise measurements, you may be able to narrow it down to 3.14.
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