Portrait of Thomas Stevenson. Thomas Stevenson was a pioneering Scottish lighthouse designer and meteorologist, who designed over thirty lighthouses in and around Scotland, as well as the Stevenson screen used in meteorology.
   His designs, celebrated as ground breaking, ushered in a new era of lighthouse creation. He served as president of the Royal Scottish Society of Arts, as president of the Royal Society of Edinburgh, and was a co-founder of the Scottish Meteorological Society.
   He was born at 2 Baxters Place in Edinburgh, on 22 July 1818, the youngest son of engineer Robert Stevenson, and his wife Jean Smith. He was educated at the Royal High School in Edinburgh.
   Thomas Stevenson was a devout and regular attendee at St. Stephen's Church in Stockbridge, at the north end of St Vincent Street, Edinburgh. He was involved in regrettable efforts to rubbish the inventions of John Richardson Wigham.
   From at least 1860 he lived at 17 Heriot Row, a large Georgian terraced townhouse in Edinburgh's New Town. In 1869, as a successful experiment into using the newly invented electric light for lighthouses, Stevenson had an underwater cable installed from the eastern part of Granton Harbour, and a light on the end of the Trinity Chain Pier was controlled from half a mile away by an operator on the harbour. He examined wind and wave effects, and his analysis is the first quantitative discussion of wave height as a funct
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