The Renaissance polymath Leonardo da Vinci died 500 years ago today, on May 2nd, 1519. He was a painter, sculptor, draughtsman, architect, designer, engineer, inventor, writer, astronomer, musician, mathematician, cartographer, geologist, anatomist, botanist and scientist. You can read about him at Grove Art Online. The article includes some images and links to many more. Credo… Read more Leonardo


Mathigon is an interactive online textbook about maths. It covers geometry, algebra, and probability and discrete mathematics. Alex Bellos, whose puzzles were mentioned here last week, says: Rather than just presenting you with information, Mathigon challenges you with problems and allows you to interact with diagrams. It is one of the most accessible and engaging… Read more Mathigon