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1. en.wikipedia.org › wiki › John_HarrisonJohn Harrison - Wikipedia

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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.

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4. www.britannica.com › biography › John-HarrisonJohn Harrison | Marine Chronometer, Clockmaker, Longitude

   www.britannica.com › biography › John-Harrison

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   John Harrison was an English horologist who invented the first practical marine chronometer, which enabled navigators to compute accurately their longitude at sea. Harrison, the son of a carpenter and a mechanic himself, became interested in constructing an accurate chronometer in 1728.

   • Author: The Editors of Encyclopaedia Britannica

5. www.worldhistory.org › article › 2197Harrison's Marine Chronometer - World History Encyclopedia

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   Mar 14, 2023 · Learn how John Harrison invented an accurate marine chronometer after decades of research and development. Find out how his device revolutionized navigation and timekeeping at sea and earned him a prestigious prize.

   • Author: Mark Cartwright

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6. Videos

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     The Clock That Changed the World (BBC History of the World)

     22 Aug 2012

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     A Detailed Study of H4 - John Harrison's Longitude Timekeeper Reconstruction

     16 May 2016

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     The Legacy Of Eighteenth Century English Watchmaker John Harrison Returns! The Homage To Harrison

     4 Nov 2023

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7. www.youtube.com › watchThe Clock That Changed the World (BBC History of ... - YouTube

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   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...

   • Video Duration: 29 min
   • Views: 1.3M

   • Author: leedsmuseums

8. www.rmg.co.uk › stories › topicsLongitude found - the story of Harrison's Clocks | Royal ...

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   Learn how John Harrison, a self-taught carpenter and clock maker, created four remarkable timepieces that helped find the ship's longitude at sea. Discover his challenges, trials, rewards and legacy at Royal Museums Greenwich.

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9. People also ask

   Why did John Harrison come to London?

   • John Harrison arrived in London, looking for both support and the rewards promised by the 1714 Longitude Act. What was the Longitude Act? The Longitude Act was an act of parliament that offered money in return for the solution to the problem of finding a ship's precise longitude at sea.

   Longitude found - the story of Harrison's Clocks

   www.rmg.co.uk/stories/topics/harrisons-clocks-longitude-problem

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   What did John Harrison invent?

   • 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 eighteenth century.

   John Harrison Biography | Biography Online

   www.biographyonline.net/scientists/john-harrison.html

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   What did John Harrison do for a living?

   • 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. Harrison's solution revolutionized navigation and greatly increased the safety of long-distance sea travel.

   John Harrison - Wikipedia

   en.wikipedia.org/wiki/John_Harrison

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   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.

   Longitude found - the story of Harrison's Clocks

   www.rmg.co.uk/stories/topics/harrisons-clocks-longitude-problem

   See all results for this question

10. candowisdom.com › decision-making › harrison-marineJohn Harrison — the genius who made the marine chronometer ...

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    Aug 1, 2018 · John Harrison, a carpenter and self-taught clockmaker, spent six decades of his life problem solving as he progressed towards his ultimate triumph—the first accurate marine chronometer.

11. www.biographyonline.net › scientists › john-harrisonJohn Harrison Biography | Biography Online

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    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.