fire4 - 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.

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
How to Expect the Unexpected
We review the fifth of this year's nominees for Book of the Year
Top Ten: Units of measurement
The definitive chart of the best units
Why self-service machines give such awful change
Unexpected item in bagging areAAAARGGGHH here's 90p change in pennies
Will the Universe actually end in a big rip?
What the Guardian got wrong...