Michael Faraday, English chemist and physicist, c 1850s.
© NRM / Pictorial Collection / Science & Society Picture Library
Michael Faraday (1791-1867) discovered the principles of the electric motor and dynamo. Faraday's great life work was the series 'Experimental Researches on Electricity' published over 40 years in 'Philosophical Transactions', in which he described his many discoveries including electromagnetic induction (1831), the laws of electrolysis (1833) and the rotation of polarised light by magnetism (1845). One of a series of tiles painted by John Eyre in 1886 celebrating famous scientists from the Cafe Royal in Edinburgh.