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John Harrison (3 April [O.S. 24 March] 1693 – 24 March 1776) was an English carpenter and clockmaker who invented the marine chronometer, a long-sought-after device for solving the problem of calculating longitude while at sea.
John Harrison (born March 1693, Foulby, Yorkshire, Eng.—died March 24, 1776, London) was an English horologist who invented the first practical marine chronometer, which enabled navigators to compute accurately their longitude at sea.
Mar 14, 2023 · John Harrison (1693-1776) invented an accurate marine chronometer after several decades of research and development. While the pendulum clock had already been invented in the 17th century, a clock that could withstand the vagaries of the sea, humidity, and air temperature remained an elusive dream. Harrison's last watch, the H5 of 1770, was so ...
Who was John Harrison? John Harrison was a carpenter by trade who was self-taught in clock making. During the mid-1720s he designed a series of remarkable precision longcase clocks. These clocks achieved an accuracy of one second in a month, far better than any clocks of the time.
Apr 3, 2018 · A self-educated English carpenter and clockmaker who invented the marine chronometer, solving the problem of calculating longitude while at sea. He was awarded a government prize...
John Harrison Biography. John Harrison (24 March 1693 – 24 March 1776) was a carpenter and watch-maker. He invented the marine Chronometer which enabled a ship to accurately know its longitude at sea (position on east-west access) His invention was critical in the development of long-distance seafaring, which was very important in the ...
Aug 22, 2012 · Of international scientific importance, the Harrison Clock is only one of only three precision pendulum clocks made by John Harrison and instrumental in solving the Longitude problem. The...