Happy Pi Day!
Pi, as you know, is the mathematical ratio of a circle's circumference to its diameter.
While pi is a constant, it's also infinite.
My kids get a kick out of listening to The Pi Song.
For convenience pi is usually shortened to 3.14, hence Pi Day -- March 14 -- get it? Get it?
And of course, this year is special because it brings pi to the next two decimal places: 3.1415 (March 14, 2015). Way cool, eh?
Come to find out -- no surprise, I suppose -- that there's a website dedicated to Pi Day.
Yeah I know, that's what I get for growing up in a family of nerds...