This approachable book explains how navigation at sea works, from the sextant to the chronometer, and how precise time became essential for locating a ship’s position.

The text blends historical stories with practical explanations. It covers the birth of reliable timekeeping, the role of observers and observatories, and the way time signals spread accurate time to the public. Readers will see how early pilots and captains relied on measurements of the sun and stars to their latitude and longitude.

How the sun, the sextant, and a precise clock work together to determine longitude.
The story of John Harrison and the long path to a reliable marine chronometer.
How observatories keep time with transit observations and adjustable clocks.
How time signals reach markets and shops, and why accuracy matters beyond the ship’s deck.

Ideal for readers of maritime history and popular science, this edition offers a clear window into the practical side of astronomical time and navigation.

"About this title" may belong to another edition of this title.

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**Please note our transit times are from the date of dispatch.** We first started out as ?The Paperback Exchange,? a chain of physical bookstores where we would part exchange your beloved books for new stories to transport you to faraway places. However, as shopping started to evolve to online shops and marketplaces, we bid our stores goodbye to become ?PBShop.? This transition has only allowed us to blossom as we now ship thousands of titles to book lovers across the globe. We pride ourselves in being a community of local book lovers which allows our passion and devotion to shine in everything we do. In 2020 we not only celebrated our 20th birthday but our 1st birthday as being completely employee owned after becoming an E.O.T in September 2019. We are proud to be different and embrace standing apart on a book mountain by working from a virtual inventory which allows us to provide thousands of books that may be difficult to get for your bookshelf or your studies. Working with a number of different suppliers allows us to explore other avenues such as puzzles, sheet music and even stationery so we really do have something for everyone. Life is about being versatile in all realms of existence. If this is your first purchase with us, or you are a returning customer, we would like to welcome you to the PBShop family, for there is no friend as loyal as a book. We are a company who put our customers at the centre of everything we do as we understand the importance of reading because once you learn to read, you will forever be free. There are a whole lot of things in this world of ours that we are yet to explore, which is why we will forever inspire curious minds.

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Pbshop.co.uk
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Shipping rates from United Kingdom to U.S.A.
Order quantity	10 to 20 business days	10 to 20 business days
First item	US$ 7.82	US$ 7.85

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