The night sky, sprinkled with twinkling stars and the pale light of a silvery Moon, has fascinated humans since the dawn of history. But, why is it dark? If you think that the answer is: "Because you don't see the Sun," think again.
Blunders are not only inevitable, they are an essential part of any innovative thinking process. If not for them, any creative enterprise might be wandering for much too long down too many blind alleys.
The fascination with π is so universal that in 1998 film director Darren Aronofsky even created a psychological thriller with that title. Here I want to tell only a few more π stories that are perhaps less known outside the circle of true aficionados.