img11 - Chalkdust

A tetrahedron…

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.

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
An Introduction to the Math of Voting Methods
We review the second of this year’s nominees for the Book of the Year
On the cover: Some assembly required
Trippy brain massages from Sam Palmer's artwork on the front of Issue 16
A Fields Medal at UCL: Klaus Roth
Klaus Roth and his work