The accessible resource for all things pi π 3.14…With interactive games, educational videos, activities/demos, shirts, and creative expressions of pi, we encourage you share some pi. You can even post your pi and win an iPhone 5. We enhance your Pi in the Sky experience.

Skywriting Planes Above the San Francisco Bay Area to Create Pi in the Sky, the World’s Largest Art Installation, on September 12, 2012 between 11:45am and 1:30pm PT.

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