front-cover - Chalkdust

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.

Dear Dirichlet, Issue 22
Rhythm, rivers and rises pollute the prof's postbag this issue
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
Slide rules: the early calculators
When slide rules used to rule... find out why they still do
You can count on Dirichlet
Counting the divisors of an integer turns out to be a rather hard problem

More from Chalkdust

Dear Dirichlet, Issue 22

Oπnions: In defence of toy models

Cryptic wordsearch, Issue 19

On the cover: skyrmions

Slide rules: the early calculators

You can count on Dirichlet