More from Chalkdust
Making a Möbius strip
Sophie Bleau chops up, unravels, and squeezes the torus into shape
In conversation with Martin Hairer
We talk to the Fields medallist about his life, his work and his advice to his younger self.
Formal sums
Nik Alexandrakis explains what they are and what they can tell us
What can you do with this space?
Nobody could draw a space filling curve by hand, but that doesn’t stop Andrew Stacey
Christmas cracker joke III
Behind today's door... A joke!
The Buckingham π theorem and the atomic bomb
Diego Carranza tells you to stop worrying and dimensionally analyse the bomb