SAN FRANCISCO (KGO) -- March 14th is known as Pi Day. It celebrates the mathematical constant 3.14.
Pi Day may not have existed if it weren't for a physicist at The Exploratorium. He created the holiday 32 years ago and The Exploratorium carries on his legacy with lots of planned activities on March 14th.
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Find out what they're doing here.
ABC7's Kristen Sze also had some fun with with pi - watch the video above for an activity that you can try out at home!
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Watch ABC7's "Midday Live" every weekday at 11 a.m., right after "The View."
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