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

Book of the Year 2025
For the first time in Chalkdust history, we have a double winner
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
The digital sum of the products of twin primes is 8?
What connects the products of twin primes with something you learnt in primary school and the number 8?
How to make: Christmas Special
Making gingerbread Platonic solids, Fröbel stars and Christmas flexagons
