March 14, 3/14, is known as Pi Day, so designated because pi is an irrational number which, when rounded, is 3.14. Pi is all about circles, which is handy since that is also the shape of pie (the kind you eat). Now, you may not know anything about the irrational number called pi, so after you watch the ridiculous clip (right), dive into the mostly educational videos below. | |
| | |