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
Chalkdust issue 11 puzzle hunt #5
Adam Townsend sets the fifth and final puzzle. Can you solve it?
Eight things you didn’t notice in Issue 07
You'll never believe number 3!
How to make: a catastrophe machine
Make a catastrophe machine just like Zeeman's
