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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.

Significant figures: Emmy Noether
Not a-Noether one! Sonia Balan can't stand this.
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
Top Ten: Units of measurement
The definitive chart of the best units
Dear Dirichlet, Issue 07
Pigs, popes and produce are among the topics of discussion in this issue's Dear Dirichlet advice column

More from Chalkdust

Significant figures: Emmy Noether

Oπnions: In defence of toy models

Cryptic wordsearch, Issue 19

On the cover: skyrmions

Top Ten: Units of measurement

Dear Dirichlet, Issue 07