Pi Day 2017

Why Pi?
Why Pi?
Why Pi?
As I was wandering around the weird part of YouTube Sunday night, I was reminded that Tuesday, March 14 is "Pi Day" - 3.14. It's one of those irrational (see what I did there?) holidays like May the Fourth (Star Wars Day) or International Talk Like a Pirate Day (I have no clue why that's on September 19) that exist solely for fun.