The marine chronometer is one of the most important instruments in the history of navigation, enabling sailors to determine their longitude at sea with great accuracy. In this authoritative work, Rupert Thomas Gould traces the development of the chronometer from its origins in the 18th century through its increasing sophistication in the 19th and 20th centuries. Along the way, Gould explores the lives and work of many of the key figures in the history of navigation and horology. This book is an essential resource for anyone interested in the history of science, the development of technology, or the triumphs of human ingenuity.

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