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

NEW! Pop-math book club
Do you have lots of unread pop math books on your shelves? Join our new monthly online book club!
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
Flo-maps fractograms: the game
Try out these flo-maps for yourself: fractions speak louder than words
Carnival of Mathematics 133
This month's round up of mathematical blog posts.
