Articles

Why do we add fractions the way we do? A very close look at addition reveals the answer — and it also works for negative numbers.

Why maths is an important tool in the fight against Ebola.

John D. Barrow tells us how to get the best view!

How to derive the famous quadratic formula from pictures, just like the Babylonians did.

Five basic facts from the father of geometry.

Euclid's fourth axiom says that all right angles are equal. But isn't that obvious?

Given there's a finite number of notes on a scale, can we still find a brand new melody? Perhaps they've all been written already!

In 2004 Stephen Hawking famously conceded that black holes do not devour all information when they swallow matter — seemingly resolving the black hole information paradox that had perplexed physicists for decades. But some argue that the paradox remains open and we must abandon our simple picture of spacetime to unravel it.