No, that’s not a typo… Sunday 14th of March is National Pi Day, the nation in question being America, who have commandeered pi as their own. Many of them believe they invented it. Obviously, with pi being a constant value of 3.14, its day of celebration could be no other date than the fourteenth of the third. (Many of us wanted it to be the third of the fourteenth, but we were shouted down.)
All over the States today there will be flags and bunting, dancing in the street, fireworks and drinking toasts to pi. Particularly the drinking, where every citizen will drink precisely 3.14 glasses of booze.
Pi is one of the few things in this Universe which can be relied upon. Measure the circumference and the diameter of a circle (round the edge and through the middle) and the ratio of one to the other will always be — you guessed it — yes, pi! No matter if its a teeny, tiny circle or a real whopper, the result is always the same.
Zoooooom across the vastness of space to — say — Antares, Betelgeuse or Orion (all on your sat-nav ) and measure the local circles: Same result. (Disclaimer: Of course, no-one has actually done this, you understand, but the guys in white coats claim to know.)
Though there are a few more decimal places to pi. Last time we looked, several million, and still no ending found to the sequence. It goes on and on and on and on for ever, just like your last girl-friend. It hides mysteries and patterns, and contains every number that ever was and several more that weren’t. Your birthday is in there somewhere, and mine too. And Hitler’s Army number. It contains everybody’s DNA coding… and the number the US President has to key in, in order to nuke Basingstoke. Weird…
So, there we have it — pi. Infinitely wonderful and attractive. But also infinitely dark and deep and scary… Yes, exactly like your last girl-friend.
PS: If you miss this date to go out and celebrate in the streets, you get a second chance. Pi Approximation Day is July 22nd. (Pi = 22/7 roughly).









