Published: March 14, 2015
Total Running Time: 00:00:29
At the Exploratorium, Pi Day isn't just a day—it's a way of life. After all, we invented it! Experience this mathematical holiday (March 14 at 1:59 p.m., to be specific) any day of the year with this video featuring the annual Pi Parade, pizza-tossing lessons, and of course, a slice of pie for everyone who wants one.