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
Crossnumber winners, issue 11
Did you solve it?
On curvature: cars, clothoids and cartography
Issah Merchant discusses the geometric principles behind, and real-world applications of, curvature
Mathematics for the three-fingered mathematician
Robert J Low flips one upside down.
