More from Chalkdust
- David Sheard sets the third puzzle. Can you solve it?
- David Sheard explores the rich mathematics and history behind the Apollonian packing, and the cover of issue 11
- This article will (unsurprisingly) tell you how to crochet a fractal
- Colin Beveridge looks at different designs for 2- and 3-dimensional tiles
- Agony uncle Professor Dirichlet answers your personal problems this Christmastime.
- James Grime gets intimate with 'the most beautiful woman in the world' from the golden age of Hollywood