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
How to crochet a fractal
This article will (unsurprisingly) tell you how to crochet a fractal
Prize crossnumber, Issue 09
Win £100 of Maths Gear goodies by solving our famously fiendish crossnumber
Christmas cracker joke II
This post was part of the Chalkdust 2016 Advent Calendar. Newton: "Are you going to the Fibonacci themed Christmas party?" Euler: "Yes! I heard it's going to be as big as the two previous years put together."
