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
Peculiar Deaths of Famous Mathematicians
We review the third of this year’s nominees for the Book of the Year
The maths behind a chip goal
We analyse the maths and physics required to execute a good chip shot
For the love of puzzles
Pub ✕ maths = ?
