More from Chalkdust
In conversation with Martin Hairer
We talk to the Fields medallist about his life, his work and his advice to his younger self.
Heads and Tails
An unexpected way to beat the odds in this classic game
The croissant equation
Each time you eat a croissant you might be biting more than 500 layers of dough!
Page 3 model: Hallucinations
The geometry of psychedelic hallucinations
Time turns backwards at the Spark Festival
The extreme weirdness of slow viscous flows, and why borrowers shouldn't use doggy paddle.
Crossnumber winners
Are you a winner?