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 20
Can you solve it?
Markov unchained
Ashleigh Wilcox looks for integer solutions to the Markov equation
Cryptic wordsearch, Issue 19
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On the cover: skyrmions
Sven Bjarke Gudnason and Calum Ross introduce you to the wonderful world of skyrmions
How to be more Pythagoras
Max Hughes investigates how channelling your inner Pythagorean may help you to become the next big lifestyle influencer
