Happy Pi Day!

Today is March the 14th or 3.14, as it might be written, and all over the world, engineers, high school math teachers and the odd college mathematics professor throw down their slide rules (or in high school, their graphing calculators) and dance around them (in circles of course).

Since I know people in each of those categories (especially some very odd math teachers and professors), I encourage you all to take the opportunity to act as odd as they do!

Listen to this discussion of the history of Pi, from the BBC program In Our Time