We look at a crafty mathematical device which, among other things, has helped people understand what causes cholera.
How should people arrange themselves for maximal socialising at a safe distance?
Explore a mystery that intrigued Stephen Hawking until the end of his life.
Nothing, not even light, can escape from a black hole. Or can it? Find out about one of Stephen Hawking's most radical results.
Would you like to get away from Earth? Here's how fast you would need to go.
How does the voting system for the European Parliament elections work?
The mathematical puzzle behind the iconic structure.
In time for pancake day here's a problem about flipping pancakes. It turns out to be surprisingly hard.
At any point in time there are two points on the Earth's equator with the same temperature.