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
The Newton–Raphson fractal
James Christian and George Jensen zoom in, out, in, out, and tell us what it's really all about
Taking the (mathematically) perfect picture at the Leaning Tower Of Pisa
Finding the best picture at the Leaning Tower of Pisa is all about the maths rather than the pose!
The Symposium of the Muses
The resultant art is the outcome and purpose that elevates and distinguishes the science.
