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Marine Chronometer hc: Its History and Developments | 
| Author: Rupert T. Gould
Publisher: Antique Collectors Club Dist A/C
Category: Book
List Price: $79.50
Buy New: $50.09
You Save: $29.41 (37%)
Avg. Customer Rating:  1 reviews
Sales Rank: 622826
Media: Hardcover
Number Of Items: 1
Pages: 300
ISBN: 1851493654
Dewey Decimal Number: 745
EAN: 9781851493654
ASIN: 1851493654
Publication Date: August 25, 2008 (In 4 Days)
Shipping: Eligible for Super Saver Shipping
Availability: Not yet published
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Product Description
First published in 1923, this long-awaited edition of the definitive reference work on the marine chronometer contains additional photographs and many of Rupert Gould's later revisions and corrections. It deals comprehensively with the chronometers history and the earliest attempts to measure longitude while including exhaustive discussions and diagrams of the various mechanisms employed with details of their inventors. It is an extraordinary fact that the first machines capable of accurately determining a ship's longitude, a measurement the great Sir Isaac Newton considered to be a mechanical impossibility, were invented and built by an obscure Yorkshire carpenter named John Harrison (1693 1776). Amazingly, the latter was entirely self-educated and had never served a days apprenticeship to any clockmaker. The Marine Chronometer relates the remarkable story of John Harrison's marine timekeepers which eventually won him a %20,000 reward offered by the British Government for any method of determin
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| Customer Reviews:
Chronometer Development Explained April 11, 2003
7 out of 7 found this review helpful
This is an excellent history of the development of the marine chronometer from the earliest attempts through to the modern day. Gould was in an excellent position to write authoritatively because he reconstructed John Harrison's original "sea clocks" some of which had lain forgotten and in a very poor state. He not only restored them and got them working, but described them in detail for posterity.This book contains a wealth of technical detail, carefully and accurately describing the designs, techniques and principles of the various developments that occurred as timekeeping at sea gradually improved over two centuries. Those who want technical details and explanations will not be disappointed in this book, while those who want to know about the background and the personalities who devoted their lives to the pursuit of accurate timekeeping will find plenty to interest them. The book contains many drawings and sketches of the various escapements which evolved and the other refinements that were invented in the course of the history of the chronometer. All those interested in the history and technology of mechanical timepieces need to have this book in their library. 400 pages, 40+ photos, 85 sketches.
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