chinese-checkers - Chalkdust

A Chinese checkers board set up for a three player game.

Image: Chinese-checkers Wikimedia Commons user Splattne, CC BY-SA 3.0

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
Four ways Photoshop encourages thinking mathematically
How processes used in image editing are related to mathematics!
In conversation with Artur Avila
Chatting with a Fields Medallist in a Leicester Square pub
Can we do good more effectively?
Choosing which charity we donate money to shouldn't be an entirely emotional decision.