Added: 2 years ago
From: fosteragnes
Views: 20,889
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  • Great video. Its nice to see someone who apreciates the importance of these clocks

  • Good video with lots of good information. Thanks for putting it up here.

  • Did you get the original text-only version of 'Longitude' or the later illustrated version? If you got the former I advise you to also try and get hold of the latter - the illustrations add a great deal to the story.

    The book is 'The Illustrated Longitude' by Dava Sobel & William J. Andrewes. ISBN 1-85702-714-0

  • Very nice presentations. For a great read on John Harrison and the search for Longitude read Dava Sobel's "Longitude", The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time. I got it as a gift recently and was bowled over with this historical account.

  • How amazingly clever..

  • Superb sequel!

  • So, the bar construction of the pendulum bars uses the same brass/steel mix that late 19th century pocket watch balance wheels!

  • @Waltham1892 harrison invented the gridiron pendulum

  • @griffithstoby amazing, a man clearly ahead of his time...

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