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

What’s hot and what’s not, Issue 23
Fashion is fleeting, Chalkdust regulars are not.
A Little History of Mathematics
We review the fourth of this year's nominees for Book of the Year
Oπnions: In defence of toy models
Calum gets on his soap box about toy models
Cryptic wordsearch, Issue 19
Can you solve it?
It’s a particle… It’s a wave… No, it’s a soliton!
Ricky Li explores the past and future of the soliton
On the cover: skyrmions
Sven Bjarke Gudnason and Calum Ross introduce you to the wonderful world of skyrmions
