• All Products
      • Paperback
      • Hardcover
      • eBook
      • Audiobook

    By: Dava Sobel

    Date Released

    Out of Print

    2 cassettes, abridged
    Read by David Rintoul

    Calculating latitude was easy, but the want of a means to measure longitude had, over the centuries, cost thousands of lives. By 1714, a desperate Parliament had offered a King's ransom of twenty thousand pounds to the provider of any "Practicable and Useful" method.

    'Longitude' tells the true story of John Harrison, a man who dared to be different. In stark contrast to the scientific establishment fruitlessly seeking a celestial solution, Harrison recognized that the only prerequisites were two accurate clocks aboard ship - one reset daily at the sun's zenith to record local noon and the other to keep the true time at a point of known longitude - the home port. From this time difference the navigator could calculate his geographical position.

    Of course, there was a drawback. There were no accurate clocks, neither on land nor, especially at sea.

    Tracing Harrison's forty-year obsession with building his perfect timekeeper, 'Longitude' is a tale full of herosim and chicanery, brilliance and the absurd, and every word of it true.

    You might also like

    Accepted Payments
    QBD Proudly Supports

    Need help? Call us on (07) 3291 7444