More from Chalkdust
- David Sheard sets the third puzzle. Can you solve it?
- Some saucy modelling
- David Sheard explores the rich mathematics and history behind the Apollonian packing, and the cover of issue 11
- A biography of Sophie Bryant
- After 100 years, a key postulate of the third law of thermodynamics has been proven. We meet Lluis Masanes, one of the researchers responsible.
- Can you solve our 3D Sudoku puzzles?