## 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.

How to make a hard problem easy by changing the way you look at it.

What happens when you shrink infinity to a point? You get a sphere!