LEDs

Joe Celko makes a database from card and knitting needles

Did you solve it?

Blaise Pascal was driven to begin the mechanisation of mathematics by his father's struggles with an accounts book in 17th century France.

While drinking beer in your favourite pub, have you ever wondered how it is produced? Find here some of the science and mathematics behind brewing.

Are you a winner?

Teaching a bunch of matchboxes how to play tic-tac-toe