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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
Can you make something out of nothing?
We explore the concept of emptiness in set theory, and explain how zero went from "nothing" to "something"
Counting palindromes
Alex Xela shows us the world of palindromic numbers, and calculates the chances of getting one
Roots: Mary Somerville
Mary Somerville fights against social mores to become one of the leading mathematicians of her time.
Issue 04 launch quiz
Tuesday 11 October, 7.15pm. Come along! Featuring hundreds of free copies of Chalkdust, free pizza, and the chance to purchase a Chalkdust T-shirt.

More from Chalkdust

Cryptic wordsearch, Issue 19

On the cover: skyrmions

Can you make something out of nothing?

Counting palindromes

Roots: Mary Somerville

Issue 04 launch quiz