img5 - Chalkdust

In this diagram the 2-simplex is $\alpha= a bc$, while the vertex $\gamma$ is $a$.

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.

Oπnions: In defence of toy models
Calum gets on his soap box about toy models
Easy to state, hard to prove: The Collatz conjecture
90 years later, we're still unable to prove this surprisingly simple statement
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
I don’t like science fiction
Peach Semolina admits her true feelings about science fiction, and delves into the maths of quantum teleportation.
Advent facts I
Santa's sack of scientific surprises