Grant Stott takes a look at the invention of tarmac. Roads used to be made from clay, earth or chalk, but these materials were very messy. John McAdam thought it would be easier if the roads were ...
Marcus du Sautoy visits Fez, where the ancient Islamic school of wisdom was founded, and where Mahommed ben Musa al-Khwarizmi wrote his ‘lm al-jebr wa’l-muqabala’ calculation by restoration or ...