More from Chalkdust
Dear Dirichlet, Issue 16
Girl guides, cooking, and public transport find their way into the prof's postbox this issue.
Significant figures: Gladys West
Madeleine Hall looks at one of the minds behind GPS
Winning the Chalkdust coin game
How to win a game when your expected score is 0
Maths at EMF camp
Exploring the maths on offer at this year's UK hacker festival.
Time turns backwards at the Spark Festival
The extreme weirdness of slow viscous flows, and why borrowers shouldn't use doggy paddle.
Optimal Pac-Man
Ghostbusting with graph theory