Article What is general relativity? To celebrate the centenary of the general theory of relativity we asked physicist David Tong to explain the theory and the equation that expresses it. Watch the video or read the article!
Article Einstein and relativity: Part I Read about the rocky road to one of Einstein's greatest achievements: the general theory of relativity, which celebrates its centenary this year.
Article Einstein and relativity: Part II General relativity, Einstein's rise to international stardom, and his legacy.
Collection Can you measure information? Can you measure information? It's a tricky question — but people have tried and come up with very interesting ideas.
Article Steady on, Einstein To celebrate the release of more English translations of Einstein's papers, we revisit one of his previously unknown models of the Universe.
Article The Sun, the Moon and trigonometry A little trig helps to find the relative distance to the Sun and Moon.
Article Solving quadratics in pictures How to derive the famous quadratic formula from pictures, just like the Babylonians did.
Article Maths in a minute: Euclid's fourth axiom Euclid's fourth axiom says that all right angles are equal. But isn't that obvious?