## 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.

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?

At any point in time there are two points on the Earth's equator with the same temperature.