Pi Day celebrations take place, appropriately enough, on March 14 at 1:59 p.m. For a glimpse of activities highlighting the enduring fascination of the digits of pi (the ratio of a circle’s circumference to its diameter), take a look at the Exploratorium’s Web pages devoted to pi, then try the links to other weird and wonderful pi pages.

Go to: http://www.exploratorium.edu/learning_studio/pi/ and http://www.mathwithmrherte.com/pi_day.htm