circle-in-square-1

May the bending and twisting forces be with Hannah Woods

Sam Kay reflects on building a universe

We announce the shortlist of our favourite maths-themed books of last year

Phone assistants, duplicating pastries, and being a 10 anywhere else are among the topics of discussion in this issue's Dear Dirichlet advice column

The definitive chart of the best units

We have a go at the puzzles in Daniel Griller's new book