
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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Oπnions: In defence of toy models
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Can you solve it?On the cover: skyrmions
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21 simple steps to draw your own Islamic pattern!Time turns backwards at the Spark Festival
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Why are there none in base 13?