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?
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Sven Bjarke Gudnason and Calum Ross introduce you to the wonderful world of skyrmions
Chalkdust issue 13 – Coming 1 May
A great start to the month of Maying
The limit does not exist!
Lindsay Lohan is really good at L'Hôpital's rule.
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James Grime gets intimate with 'the most beautiful woman in the world' from the golden age of Hollywood
