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Joe Celko makes a database from card and knitting needles

Aimen Khan ponders how patterns break down

We review the eighth of this year's nominees for the Book of the Year

We explore the concept of emptiness in set theory, and explain how zero went from "nothing" to "something"

Each time you eat a croissant you might be biting more than 500 layers of dough!

Here we have collected our favourite sets, from the Mandelbrot set to the Mahut-Isner set!