fire9 - Chalkdust

The centred square numbers can be built from a central dot and four copies of a triangle number.

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
Pawns, puzzles, and proofs
Dimitrios Roxanas tells us why playing chess backwards is the new black (and white).
MathsJam 2017
Chalkdust descends upon the UK's largest pop maths gathering and tells you what you missed
In conversation with Hannah Fry
On the mathematics of love, communicating maths to the public, and women in maths.

More from Chalkdust

Oπnions: In defence of toy models

Cryptic wordsearch, Issue 19

On the cover: skyrmions

Pawns, puzzles, and proofs

MathsJam 2017

In conversation with Hannah Fry