Countdown to Pi Day
If you travel in certain circles, which you likely do, you’ve probably heard that Pi Day this year is special. This year it aligns not just with 3.14 but with 3.1415, a feat of the Gregorian calendar that will not happen again for a century. At which point most of us will not be around. Which was not intended to be a pun. As we countdown to the big day, here’s a random assortment of things to know about our friend pi: • pi is the ratio of a circle's circumference to its diame