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Community π Day

pidayWelcome to our 32nd annual π Day! Help us celebrate this never-ending number (3.14159 . . .) and Einstein's birthday as well. On the afternoon of Thursday, March 14, 2019, visit us for Community Pi Day, participate in π-related activities, and enjoy a piece of pie. 

Founded at the Exploratorium by our own Prince of Pi, physicist Larry Shaw, π Day has become an international holiday, celebrated live and online all around the world.

Schedule of Events

10:00 a.m. - 5:00 p.m.
Nanojems:® Million Digits of π
Gallery 4 Corridor, Microscope Imaging Station

10:00 - 4:30 p.m.
π Activities with the Explainers
Bechtel Gallery 3

Why π? with Ron Hipschman and Lori Lambertson
Bechtel Gallery 3, Wattis Webcast Studio

1:30 p.m.
π Procession Gathers
Gallery 5

1:59 p.m.
π Procession Begins
Gallery 5

1:59 - 2:45 p.m.
π Day Band a.k.a. Mission Delirium
Gallery 5

2:15 p.m.
Pie Serving!

Thursday, 03/14/19


Website: Click to Visit


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Pier 15 (Embarcadero at Green Street)
San Francisco, CA 94111

Phone: (415) 528-4444
Website: Click to Visit