Physicists are now using principles from quantum mechanics to build a new model of the abstract concept of pi. Or, more ...

The quest for precision in pi has led to over 2.7 trillion digits calculated, but how many do we actually need? This exploration contrasts mathematicians’ obsession with engineers’ practical approach.

‘Invoking a memory palace involves picturing some structure or place in your mind, and linking items you want to remember with specific locations around that place.’Illustration: Guardian Design; ...

Kate Bush wrote an entire track dedicated to pi, rattling off the decimals. However, there's a major mistake at the centre of the track where she messes up.