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.
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NEW! Pop-math book club
Do you have lots of unread pop math books on your shelves? Join our new monthly online book club!
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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
Significant figures: David Singmaster (1938–2023)
Colin Wright remembers the puzzle giant with a passion for sharing
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Choosing which charity we donate money to shouldn't be an entirely emotional decision.
