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.
More from Chalkdust

Oπnions: In defence of toy models
Calum gets on his soap box about toy models
Love Triangle
We review the fifth of this year’s nominees for Book of the Year
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
Cat among the pigeons
Some interesting observations with the pigeonhole principle
Issue 04
Problem solving 101, proof by storytelling, plus the return of all your favourite fun pages in our autumn 2016 edition.
