splash - Chalkdust

Calum is a lecturer in physics at Edge Hill University where he studies topological solitons and enjoys talking about maths and physics to anyone who will listen. He can often be found on the side of a mountain or out on a bike, talking to himself about solitons.

What’s hot and what’s not, Issue 20
Fashion is fleeting, Chalkdust regulars are not.
Dear Dirichlet, Issue 19
Game shows, flight and social media bots are among the problems solved in this issue's Dear Dirichlet agony aunt column
Cryptic wordsearch, Issue 19
Can you solve it?
On the cover: skyrmions
Sven Bjarke Gudnason and Calum Ross introduce you to the wonderful world of skyrmions
How to make: a hyperbolic plane
A great way to waste a lot of paper
Newsletter puzzles
These puzzles appeared in the Chalkdust newsletters. You can find the answers here and sign up for the newsletter here.

More from Chalkdust

What’s hot and what’s not, Issue 20

Dear Dirichlet, Issue 19

Cryptic wordsearch, Issue 19

On the cover: skyrmions

How to make: a hyperbolic plane

Newsletter puzzles