More from Chalkdust
Dog leads, mirrors and Hermann Minkowski
Donovan Young looks at the shapes made when two cones collide
Covering infinity
Sophie Bleau uncovers the secrets behind covering maps
Humble Pi
We review the sixth of this year's nominees for the Book of the Year
Counting caterpillars
Peter Rowlett uses combinatorics to generate caterpillars
Slide rules: the early calculators
When slide rules used to rule... find out why they still do
Dear Dirichlet, Issue 05
Prof. Dirichlet tackles political arguments and werewolves in answering your personal problems