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

Theorems of the 21st Century Seminar
A new online seminar series. Each seminar is an accessible introduction to a theorem of the 21st century.
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
Constructing the cover of Issue 10
21 simple steps to draw your own Islamic pattern!
Review of Elastic Numbers
We have a go at the puzzles in Daniel Griller's new book
