One answer, predating Pythagoras by over 1,000 years, is in land surveying. Lurking in a museum in Istanbul is a 3,700-year-old clay tablet known as Si.427.

Learn about and revise how Pythagoras’ theorem can be used to calculate the sides of right-angled triangles with this BBC Bitesize GCSE Maths Eduqas guide.

This is the monochord, invented by the mystical mathematician Pythagoras to demonstrate the connection between musical harmony and the structure of the world. It was simplicity itself: ...

Learn about and revise how Pythagoras’ theorem can be used to calculate the sides of right-angled triangles with this Bitesize GCSE Maths Edexcel guide.

The monochord was originally a scientific instrument — the sonometer — invented by the mathematician Pythagoras and only featured one string. The monochord that Cynthia strums in her video ...

Citing ethical concerns, Pythagoras and his followers didn't eat animals, according to the virtual exhibit. As a result, before his kind was referred to as vegetarians, they were called Pythagoreans.

On the other hand, Pythagoras and Hildegard of Bingen were on to the principle underlying it: ... Sonia Slany's 'Monochord Music' (Village Life, 2CDs), is available from 020 8360 4975; £16.