Originally published in 1923, this is a facsimile edition of the definitive reference work on the Marine Chronometer, with seventy additional photographs. This revised edition, now with the author's later revisions and corrections, covers the chronometer's history from the earliest attempts to measure longitude while including detailed discussions and illustrations of the various mechanisms and their inventors.
It is difficult to grasp, at first sight, the extraordinary fact that the first machines capable of performing the remarkable feat of accurately determining a ship's longitude, were designed and made by an obscure Yorkshire carpenter, John Harrison (1693-1776). Harrison was entirely self-educated and never served a day's apprenticeship to any clock maker.
The Marine Chronometer is not only the entirely absorbing story of John Harrison's marine timekeepers, which won him the reward of £20,000 offered by the British Government for any method of finding a ship's longitude within thirty geographical miles at the end of a six weeks' voyage, but also covers the inventions of such famous scientists and pioneers as Christian Huyghens (1629-95), Jeremy Thacker, Henry Sully and Leibniz.
The book also recounts in detail the inventions of other professional clock makers such as Paul Ditisheim, J.G. Ulrich, Thomas Earnshaw, John Arnold, Ferdinand Berthoud, Thomas Mudge and Pierre Le Roy.
-Originally published in 1923, this is a facsimile edition of the definitive reference work on the marine chronometer but with 70 additional photgarphs.
-This classic book covers the chronometer's history from the earliest attempts to measure longitude while including detailed discussions and illustrations of the various mechanisms and their inventors.
-'The Marine Chronometer gives the story of John Harrison's invention of marine timekeepers, and covers the inventions of famous scientists and pioneeres such as Christian Huyghens, Jeremy Thacker, Henry Sully and Leibnitz.
-In detail the book recounts the inventions of other professional watchmakers such as Paul Ditisheim, J. G. Ulrich, Thomas Earnshaw, John Arnold, Ferdinand Berthoud, Thomas Mudge and Pierre Le Roy.
-An easily readable style is combined with a deep understanding of technical matters.
This book is unrivalled after more than 60 years.
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