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
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
In conversation with Sammie Buzzard
Ellen talks to the mathematician and scientist about Attenborough, arctan and Antarctica
The power of curly brackets
Mats Vermeeren sketches a simple proof of Noether's first theorem
Review of Birth of a Theorem
Cédric Villani’s Birth of a Theorem tells the story of a mathematical theorem
