Community π Day and the 31st annual π Day at the explOratorium

explO pi

Welcome to the 31st annual Day, the mathematical holiday founded at the Exploratorium and celebrated by number lovers around the world. To honor the never-ending number 3.14159... (and Einstein’s birthday), we’ll serve up π-themed activities, rituals, antics, and plenty of pie. Find out what's so special about this famous mathematical constant, and take your (decimal) place in our annual march to the π Shrine!

A Slice of Pi Day History and A Brief History of π

Also, be sure to share your Pi Day spirit with #PiDaySF and @Exploratorium. 

Schedule of Events:

10:00 a.m.5:00 p.m.
NanoJems: Million Digits of π
East Gallery Corridor, Microscope Imaging Station

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

11:00 a.m. 1:59 p.m.
Throwing π with Explorables
Bechtel Central Gallery

Why π? with Ron Hipschman and Lori Lambertson
Phyllis C. Wattis Webcast Studio

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

1:59 p.m.
π Procession Begins

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

2:15 p.m.
Pie Serving!
North Gallery

Note: Pay-what-you-wish on Community Days, when museum entry is on a first-come, first-served basis. Entry is subject to capacity; admission is not guaranteed. We don't accept group or field trip reservations; group entry is discouraged due to large crowds.

Wednesday, 03/14/18


Phone: 4155284444
Website: Click to Visit


Pay what you wish but feel free to donate!

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

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