More from Chalkdust
In conversation with Shannon TrustWe find out more about the charity's work to support maths education in prisons.
In conversation with Martin HairerWe talk to the Fields medallist about his life, his work and his advice to his younger self.
Page 3 model: The potato EarthHow Kelvin estimated the age of the Earth by thinking about a baked potato
Page 3 model: Woollen jumpersHow did your favourite sweater become so big? And how big can it get?
Significant figures: John ConwayThe story of an unforgettable mathematician.
Why Study Mathematics?We review the fifth of this year's nominees for the Book of the Year