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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.
- The Editors of Encyclopaedia Britannica
John Harrison (1693-1776) was a carpenter and watch-maker who invented the marine chronometer, a device that enabled ships to measure longitude at sea. Learn about his life, his challenges, his achievements and his legacy in this biography.
John Harrison (1693-1776) was a carpenter and clockmaker who solved the problem of determining longitude at sea. He designed and built several accurate clocks and watches, but faced opposition and controversy from the scientific establishment.
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Learn how John Harrison, a self-taught watchmaker, invented the marine chronometer that solved the longitude problem and revolutionized navigation. Discover the challenges, innovations, and legacy of his 43-year quest for a practical solution.