hair-moon - Chalkdust

Total Eclipse of the Hair-t. Bonnie Tyler would be proud.

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
You don’t need permission to be a great mathematician!
Nira Chamberlain, one of the UK's top 100 scientists, shares his experiences as a black mathematician.
Top Ten: Parts of a circle
The definitive chart of the circle's greatest parts
Can we do good more effectively?
Choosing which charity we donate money to shouldn't be an entirely emotional decision.