The discovery of palladium 200 years ago caused a furore. Instead of being announced in a scholarly journal the new element was advertised for sale in a shop in Soho.
It made its 19th-century discoverer, chemist
William Wollaston , a rich man. Wollaston was a brilliant polymath, discovering the first amino acid, inventing navigational instruments and suggesting new theories in fields as diverse as astronomy and physiology. Getting the mettle of the metal man is Professor Bill Griffith from Imperial College, whojoins presenter Quentin Cooper. producer Michelle Martin