Exploratorium executive director explains why we celebrate Pi Day

SAN FRANCISCO (KGO) -- Wednesday is Pi Day, where we celebrate the number 3.14, which stands for the circumference of any circle divided by its diameter.

RELATED: Pi Day has San Francisco roots

ABC7 News spoke to Chris Flink, the executive director of the Exploratorium, about why we celebrate and what they're doing to commemorate the day.

Video: How to measure pi using a real pie

Exploratorium scientist Julie Yu demonstrates how to measure pi using a string and real fruit pie.

More details on the event and the history of Pi Day can be found at the Exploratorium website.