More from Chalkdust
On the cover: flexahedron
Connie Bambridge-Sutton invites you to make a flexible 3D shape
In conversation with Martin Hairer
We talk to the Fields medallist about his life, his work and his advice to his younger self.
A walk on the random side
Tanmay Kulkarni intentionally gets lost on the Tokyo subway
Primes à la Euler
Infinitely many primes ending in 1, 3, 7 and 9 proved in typically Eulerian style.
Why knot?
You can un-knot a knot, by cutting it not?
The pipe singularity
In the Aztec city of Atzlan, the scientist Remotep makes a revolutionary discovery