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Fashion is fleeting, Chalkdust regulars are not.

Swing on a magnetic pendulum into our autumn 2018 issue. Topological tic-tac-toe, maths, cake, categories, plus all your favourite regulars.

We created hot ice from scratch, a solution that remains liquid even below its freezing point!

Some surprising mathematical facts

It's the last day of the Chalkdust advent calendar, so there must be something very good behind today's door...

Find your perfect partner with this wonderful tree diagram!