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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.
Mar 20, 2024 · 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...
May 17, 2014 · This machine was the first of John Harrison's clocks, known as H1, predating all those other chronometers, and representing his first attempt to make a timekeeper that would remain accurate on ...
Even as Anson sought his prize in the distant Pacific, John Harrison, the son of an English carpenter, labored at his workbench on a solution to the longitude problem that would free ships to travel wherever the wind would serve.
