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

Don’t connect four
David Budd gets carried away joining the dots. Resistance is few-tile.
Oπnions: In defence of toy models
Calum gets on his soap box about toy models
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
Dear Dirichlet, Issue 05
Prof. Dirichlet tackles political arguments and werewolves in answering your personal problems
Prize crossnumber, Issue 03
Be in for a chance to win a £100 goody bag if you can solve our fiendish crossnumber
