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
Prize crossnumber, Issue 19
Can you solve it?
Cryptic wordsearch, Issue 19
Can you solve it?
A day in the life: teachers
We talk to three teachers, working in different countries
On the cover: skyrmions
Sven Bjarke Gudnason and Calum Ross introduce you to the wonderful world of skyrmions
How many quadratics factorise?
Write down a quadratic. What is the probability that it factorises? Paging Prof. Dirichet...
