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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.

Oπnions: In defence of toy models
Calum gets on his soap box about toy models
Cryptic wordsearch, Issue 19
Can you solve it?
On the cover: skyrmions
Sven Bjarke Gudnason and Calum Ross introduce you to the wonderful world of skyrmions
How can we tell that 2≠1?
Maynard manages to prove that 2≠1 in less space than it took Bertrand Russell to prove that 1+1=2
Dear Dirichlet, Issue 10
Letter writing, hospital visits, and getting the family active are among the topics of discussion in this issue's Dear Dirichlet advice column
Why knot?
You can un-knot a knot, by cutting it not?

More from Chalkdust

Oπnions: In defence of toy models

Cryptic wordsearch, Issue 19

On the cover: skyrmions

How can we tell that 2≠1?

Dear Dirichlet, Issue 10

Why knot?