Pi is described as an “irrational and transcendental number” whose decimals “continue infinitely without repetition or pattern.” So what’s not to celebrate today, it’s Pi Day!

- Did you know that in a mirror, 3.14 looks like “pie“?
- Maybe you’re interested in hearing from the Numberphile about Pi and the size of the universe?
- Find your birthday hidden in Pi or read about last week’s Pi eating contest!

Happy Pi Day!