fire8 - Chalkdust

The first three centred square numbers: 1, 5, and 13.

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
The Buckingham π theorem and the atomic bomb
Diego Carranza tells you to stop worrying and dimensionally analyse the bomb
Dear Dirichlet Valentine’s Day special
Agony uncle Professor Dirichlet answers your personal problems this Valentine's Day.
Reinventing 2D: What a difference a matrix makes
How derivatives of matrices are being used in your day-to-day lives