# Maths in a minute

Want facts and want them fast? Our *Maths in a minute* series explores key mathematical concepts in just a few words. From symmetry to Euclid's axioms, and from binary numbers to the prosecutor's fallacy, learn some maths without too much effort.

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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?

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.

In normal life higher dimensions smack of science fiction, but in mathematics they are nothing out of the ordinary.

A quick introduction to transcendental numbers, a famous problem which relates to them, and how the person who solved it became a victim of political tensions.