doodles

Looking for a challenge? Try our cryptic crossnumber—with hints and tips so anyone can have a go!

Introducing the work that has won mathematics' most famous award

Next time you are finished using a paper cup, create your own papercupter!

How the queue size tells you when the next bus is coming

Ever been stuck in motorway traffic which seems to have no reason? A model for traffic flow explains why.

Make the perfect gift for your loved one