More from Chalkdust
Book of the Year 2019We announce the winner of this coveted prize
Why knot?You can un-knot a knot, by cutting it not?
Christmas cracker joke IIThis post was part of the Chalkdust 2016 Advent Calendar. Newton: "Are you going to the Fibonacci themed Christmas party?" Euler: "Yes! I heard it's going to be as big as the two previous years put together."
Catching criminals with mathsHow crime science, and the maths it uses, is helping the police fight crime
Why I hate an empty bus stopHow the queue size tells you when the next bus is coming
Victorian maths tricks with old moneyExploring mental arithmetic tricks in T. Martin's 1842 guide, 'Pounds, shillings and pence'