John Aitken

John Aitken, FRS, FRSE LLD (18 September 1839 – 14 November 1919) was a Scottish meteorologist, physicist and marine engineer. He was one of the founders of cloud physics and aerosol science, who built the first apparatus to measure the number of dust and fog particles in the atmosphere, a koniscope. Life Aitken was born at Darroch House in Falkirk on 18 September 1839, one of eight children of Henry Aitken of Darroch, a Falkirk lawyer in the firm of Russell & Aitken. John was educated at Falkirk Grammar School and studied marine engineering at Glasgow University, undertaking his engineer training with Messrs Napier & Sons, the Glasgow shipbuilder. He returned to his home town of Falkirk, where he carried out his various experiments. In 1875 he was elected a Fellow of the Royal Society of Edinburgh. His proposers were William Thomson, Lord Kelvin, Edward Sang, James Thomson Bottomley and Allen Thomson.