March 15, 2012
It's a day some people may remember from geometry class, but its now found a new following on the web, where fans of math and science routinely produce all sorts of "Pi"-related content on this obscure holiday.
In fact, over 1,000 videos tagged "Pi Day" were uploaded this week. Some took a straightforward approach, like this explainer from Numberphile:
While some people were a big more unconventional. The BYU Mathletes, seen here, used the opportunity to do something unique:
But not everybody is a fan. YouTube scribbler and self-described "mathemusician" Vi Hart produced this clip last year, that remains one of the most viewed Pi Day videos.
If you're interested, you can see Hart's 2012 video here.