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
The problem with addition
It doesn’t add up for Patrick Creagh
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?
A counterintuitive result in the theory of traffic flow
Additional roads do not imply faster travel times!
