Ok, this will show my geekiness.  Today is Pi Day (3/14).  It is also Albert Einstein's birthday. 

Pi, by definition, is the ratio of the circumference of a circle to its diameter. Pi is always the same number, no matter which circle you use to compute it. The area of a circle is pi times the square of the length of the radius, or "pi r squared".

Pi is a never-ending number (like we would like our hair to be!).

Today is also a good day to eat a piece of pie in memory of good old Albert Einsteinn.