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
Dear Dirichlet, Issue 07
Pigs, popes and produce are among the topics of discussion in this issue's Dear Dirichlet advice column
Forget a new £1 coin, we need a £1.23 coin
Not the new coin we want, but the new coin we need
The Symposium of the Muses
The resultant art is the outcome and purpose that elevates and distinguishes the science.
