a day to celebrate a number with desserts, numerical recitations and hot-dog throwing.
Pi, the number that expresses the ratio of a circle’s circumference over its diameter, was first calculated in ancient times, and sometimes is called Archimedes’ Constant, for an ancient Greek mathematician who calculated an approximate value for the number.
This Monday, March 14, 2011, from at 1:59 pm, the holiday will not go unmarked — staff of the Exploratorium will gather together to
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