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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Cryptic wordsearch, Issue 19
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Sven Bjarke Gudnason and Calum Ross introduce you to the wonderful world of skyrmionsOn the cover: Regular tilings
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Can you wear them and be taken mathematically seriously?Newsletter puzzles
These puzzles appeared in the Chalkdust newsletters. You can find the answers here and sign up for the newsletter here.