More from Chalkdust
- Did you solve it?
- Sophie Maclean and David Sheard speak to a very top(olog)ical mathematician!
- 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
- Lucy Rycroft-Smith reflects on the use of this well-established measurement