More from Chalkdust
Coffee problems
Patrick Hedfeld has bean there, modelled that
On the cover: Some assembly required
Trippy brain massages from Sam Palmer's artwork on the front of Issue 16
On the cover: Apollonian packing
David Sheard explores the rich mathematics and history behind the Apollonian packing, and the cover of issue 11
Humble Pi
We review the sixth of this year's nominees for the Book of the Year
How to tile a chessboard
Introducing polyominoes
Interstellar travel: the mathematics of wormholes
Matthew Wright looks at wormholes in sci-fi