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?
On the cover: skyrmions
Sven Bjarke Gudnason and Calum Ross introduce you to the wonderful world of skyrmions
Roots: Gerolamo Cardano
Emma Bell explains why the Renaissance mathematician Gerolamo Cardano styled himself as the "man of discoveries".
Donald in Mathmagic Land
Donald Duck learns that there is “a lot more to mathematics than two-times-two”.
The statistics of a squeaky bum
Does form going into the play-offs predict your success?
