Did you know that today is both Albert Einstein's birthday and the day some math fans (and other "geeky" folks) consider Pi day? You know, Pi, as in the nubmer 3.14, the one that really stretches...decimals to infinity. This is the number commonly used as the ratio of the circumference to diameter of a circle.

March 14 is considered Pi day because the date is 3/14 (get it?). But not everybody thinks Pi is the best number to use for the calculation of a circle's diameter. Some are pushing for 6.28, the twice times Pi as a better calculation and are calling it "Tau" (see this CNN article). Yeah, this is getting complicated.

No worries. Have fun with it. You might even want to check out a YouTube ode to Pi.

I wonder what Albert Einstein would think about all this. Probably get a good chuckle out of it. Many people don't realize that Einstein appreciated art, philosophy, spirituality, nature and much more than mathematics. I like reading daily Einstein quotes.

Enjoy your 3/14 and have some pi(e)!