Thomas Earnshaw (born on February 4, 1749 in in Ashton-under-Lyne - died March 1, 1829 in London) was an Englishwatchmaker who first simplified the process of chronometer production, making them available to the general public. This image has been released into the public domain by the copyright holder, its copyright has expired, or it is ineligible for copyright. ... February 4 is the 35th day of the year in the Gregorian Calendar. ... Events While in debtors prison, John Cleland writes Fanny Hill (Memoirs of a Woman of Pleasure). ... Ashton-under-Lyne is a town in Greater Manchester with a population of 44,400 (2001 estimate). ... March 1 is the 60th day of the year in the Gregorian calendar (61st in leap years). ... 1829 was a common year starting on Thursday (see link for calendar). ... London is the capital city of the United Kingdom and of England. ... Royal motto: Dieu et mon droit (French: God and my right) Englands location within the UK Official language English de facto Capital London de facto Largest city London Area - Total Ranked 1st UK 130,395 km² Population - Total (2001) - Density Ranked 1st UK 49,138,831 377/km² Religion... A watchmaker is one who primarily repairs watches, although historically this person also made watches. ... A chronometer is a clock designed to have sufficient long-term accuracy that it can be used as a portable time standard on a vehicle, usually in order to determine longitude by means of celestial navigation. ...
He's also known for his improvements to the transit clock at the Royal Observatory of Greenwich in London.
ThomasEarnshaw was a pioneer horologist and one of several developers of the marine chronometer.
Earnshaw's so-called No.1 chronometer had been delivered for trials at the Royal Greenwich Observatory in February 1792, where it remained for two years until it was finally installed by Earnshaw himself at Armagh in Northern Ireland on the 18th August 1794, (where it remains to this day).
Eventually, Earnshaw's spring detent escapement was awarded £3,000 from the Board of Longitude for its contribution towards the solution of the longitude at sea problem, and nowadays ThomasEarnshaw ranks amongst our greatest chronometer inventors and has finally secured his rightful place in the history of marine technology.
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