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.
Why a positive test result doesn't necessarily mean you have the disease.
Here's the ancient proof that there are infinitely many prime numbers.
Why a DNA match doesn't necessarily prove your guilt.
What would happen if the Sun suddenly exploded? Einstein wondered the same thing, and completely changed our understanding of the Universe.
We all instinctively recognise symmetry when we see it, but describing it in words is harder than you might think.