Longitude

This book was written by a woman, if women had the equal status that they have today this book would not have been possible. Who needs a map or a chronometer when all you have to do is ask directions?


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		Longitude : The True Story Lone Genius Who Solved Greatest Scientific Problem his Time by Dava Sobel Edition: Paperback Price: $8.96 Availability: Usually ships in 24 hours		211 used from $2.30
Best book for those who like things like history and learning the origins of history., August 28, 2005 Dava Sobel wrote a book that taught me about , the origins of the chronometer. I am still amazed how John Harrison's clocks started out as huge Multi Stone devises and evolved over his years of labor (40) into accurate hand held device's. Not really a challenge unless you consider the reality of the task, for instance a clock has to work accurately in all temperatures and humidity during a tempest, for his method to work. Different metals expand and contract at different temperatures...Read the book it is an easy read and will make you appreciate and understand navigation better than you had expected.

Visit http://rubens.anu.edu.au/student.projects97/naval/defin.html for the straight dope.