Longitude [Kindle Edition]

Dava Sobel (Author)

Book Description

Anyone alive in the eighteenth century would have known that "the longitude problem" was the thorniest scientific dilemma of the day-and had been for centuries. Lacking the ability to measure their longitude, sailors throughout the great ages of exploration had been literally lost at sea as soon as they lost sight of land. Thousands of lives, and the increasing fortunes of nations, hung on a resolution. The scientific establishment of Europe-from Galileo to Sir Isaac Newton-had mapped the heavens in both hemispheres in its certain pursuit of a celestial answer. In stark contrast, one man, John Harrison, dared to imagine a mechanical solution-a clock that would keep precise time at sea, something no clock had ever been able to do on land. Longitude is the dramatic human story of an epic scientific quest, and of Harrison's forty-year obsession with building his perfect timekeeper, known today as the chronometer. Full of heroism and chicanery, it is also a fascinating brief history of astronomy, navigation, and clockmaking, and opens a new window on our world.

Editorial Reviews

Amazon.com Review

Dava Sobel's Longitude tells the story of how 18th-century scientist and clockmaker William Harrison solved one of the most perplexing problems of history--determining east-west location at sea. This lush, colorfully illustrated edition adds lots of pictures to the story, giving readers a more satisfying sense of the times, the players, and the puzzle. This was no obscure, curious difficulty--without longitude, ships often found themselves so far off course that sailors would starve or die of scurvy before they could reach port. When a nationally-sponsored contest offered a hefty cash prize to the person who could develop a method to accurately determine longitude, the race was on. In the end, the battle of accuracy--and wills--fought between Harrison and arch-rival Maskelyne was ruthless and dramatic, worthy of a Hollywood feature film. Longitude's story is surprising and fascinating, offering a window into the past, before Global Positioning Satellites made it look easy. --Therese Littleton

From Publishers Weekly

This look at the scientific quest to find a way for ships at sea to determine their longitude was a PW bestseller for eight weeks.
Copyright 1996 Reed Business Information, Inc.

See all Editorial Reviews

Product Details

• File Size: 289 KB
• Print Length: 191 pages
• Page Numbers Source ISBN: 0802799671
• Publisher: Walker Books (July 5, 2010)
• Sold by: Amazon Digital Services, Inc.
• Language: English
• ASIN: B003WUYE66
• Text-to-Speech: Enabled
• X-Ray: Enabled
• Lending: Enabled
• Amazon Best Sellers Rank: #13,636 Paid in Kindle Store (See Top 100 Paid in Kindle Store)
  • #5 in Kindle Store > Kindle eBooks > Nonfiction > Professional & Technical > Transportation
  • #7 in Books > Professional & Technical > Engineering > Patents & Inventions
  • #9 in Kindle Store > Kindle eBooks > Biographies & Memoirs > Professionals & Academics > Scientists

Most Helpful Customer Reviews

206 of 214 people found the following review helpful

4.0 out of 5 stars Simple guy solves enormous problem October 13, 2002

By Thomas Stamper VINE™ VOICE

Format:Paperback|Amazon Verified Purchase

If you can't get Newton and Galileo to solve your scientific problems, who do you turn to? Well the English government turned to everyone, hoping that some budding scientist could figure out the problem of calculating Longitude at sea. They even offered a huge reward. Why was it important? Without precise longitude, there was no way to steer a ship with any precision. Thus English ships were being wrecked and precious cargo wasn't making its scheduled delivery.

The scientists worked and worked on the problem. Many men including Edmund Halley thought that by mapping the stars, one could use the night sky as a map at sea. Although he knew little about science, a simple clockmaker named John Harrison thought that well-built clock with a dual face would solve the problem. You get to guess which person was right.

Longitude is both a vibrant story of the pains of solving an important problem, and a biography of the man who solved it. I don't tend to read the subject of science all that much, because I find it dry, but not so with this book. Author Dava Sobel lends an understanding of the human element in science. That Harrison has to fight snobbery first and later jealousy demonstrates how ego and self-importance can get in the way of the most important problems facing human beings. Not only will you learn how average people can solve enormous tasks, but you'll nod as the familiar self-promoters try to take the credit.

149 of 154 people found the following review helpful

4.0 out of 5 stars Excellent read that improves on the original October 11, 1999

By A Customer

Format:Hardcover

Having bought and read "Longitude", the only lightly illustrated original hardback version, I wanted to know more about how the actual clocks worked, and I wanted to see them, without making a trans-Atlantic pilgrimage to Greenwich.

Hence, when I saw an illustrated version of "Longitude", I had to buy it. This book contains the original text, with no additions, except for the illustrations. The photographs are beautifully done, as is the printing.

My only hesitation in not awarding the book five stars is that I was hoping for one of two things; either an illustrated version of the original, with a couple of pictures of each chronometer, at a reasonable price, or a more detailed illustrated version, with more information on how the chronometers actually work. What we ended up with is a compromise. Beautiful pictures of the chronometers, but little extra detail of Harrison's marvelous inventions.

Still, an improvement on the original, which is an excellent book, one I have read several times. Highly recommended.

By the way, when I purchased this book, I donated my original version to the library.

34 of 35 people found the following review helpful

4.0 out of 5 stars Great If You Can't See Harrison's Clocks in Person. April 1, 2004

By mirasreviews HALL OF FAMETOP 500 REVIEWERVINE™ VOICE

Format:Paperback

So as not to repeat myself and try the patience of those customers who have already read "Longitude", I will confine my comments to the additional material in the illustrated version. If you haven't read "Longitude", it's a great little book, and I refer you to reviews by myself and others on that book's page.

"The Illustrated Longitude" contains the entire original text of Dava Sobel's book, "Longitude", along with 178 illustrations provided by William J. H. Andrewes. Mr. Andrewes hosted the Longitude Symposium that inspired Dava Sobel's book and has himself published the annotated proceedings of the Symposium in his book entitled "The Quest for Longitude". The illustrations in this book consist of portraits of people and photographs of documents and instruments which are referenced in the text. The documents include maps, journals, pages of books, and official decrees. Nearly every major player in the Longitude drama is represented with at least one portrait. Most fascinating are the photographs of the time pieces, themselves. I found the illustrations to be only mildly interesting until I got to the discussion of John Harrison's longitude clocks. At this point, I was astonished to see how grand and beautiful H-1 was...and still is, and how small and elegant H-4 is in contrast. I found it difficult to picture Harrison's clocks while reading Dava Sobel's book, and the ability to see them in this illustrated version has left me even more impressed with Mr. Harrison's work. All of Harrison's clocks are represented with large color photographs, and many of the later copies of his works by Larcum Kendall, Thomas Mudge, John Arnold, and Thomas Earnshaw are also pictured. I wish there were more illustrations addressing the workings of Harrison's clocks, but that's probably a subject for another book. I recommend "The Illustrated Longitude" to fans of John Harrison's work and early chronometers who will not have the opportunity to see these incredible instruments in person.

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