Welcome to The Exploratorium's

2009 21st Annual Pi Day Celebration page

What is Pi Day?

Pi Day Activity Schedule

Pi Day in Second Life! If you have an avatar, go here

A Short History of Pi

Pi Activity - Discovering Pi

Pi Activity - Cutting Pi and Hat Sizes

Pi Day Image Archive

Pi-Ku (obviously Pi haiku!)

Pi Limericks

Pi Posters

Pi Links

Pi Day Sponsors (in alphabetical order)

Maria Craft-Neto Delicieux Fine Desserts (415) 479-1020 2901 Mission St. at 25th Street San Francisco, CA  94110 eatpie@ missionpie.com (415) 282-4PIE 700 Irving St San Francisco, CA 94122 (415) 661-2140