Professor Stewart's Cabinet of Mathematical Curiosities

School maths is not the interesting part. The real fun is elsewhere. Like a magpie, Ian Stewart has collected the most enlightening, entertaining and vexing ''curiosities'' of maths over the years... Now, the private collection is displayed in his cabinet.There are some hidden gems of logic, geometry and probability -- like how to extract a cherry from a cocktail glass (harder than you think), a p...