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
What’s hot and what’s not, Issue 21
Fashion is fleeting, Chalkdust regulars are not.
Cryptic wordsearch, Issue 19
Can you solve it?
Forest fires
Steven Lockwood finds polygonal numbers hidden in a spreading fire
On the cover: skyrmions
Sven Bjarke Gudnason and Calum Ross introduce you to the wonderful world of skyrmions
Launch day puzzle hunt
Celebrate the launch of issue 11 by taking part in our puzzle hunt
