More from Chalkdust
- David Sheard sets the third puzzle. Can you solve it?
- Sam Hartburn orders wine by the barrel, but wonders if she's getting the most wine
- David Sheard explores the rich mathematics and history behind the Apollonian packing, and the cover of issue 11
- A review of Timothy Revell's new book, describing the hidden mathematics behind our world
- When-to-add-milk confusion and other related matters