Longitude - Cassette by Dava Sobel

By: Dava Sobel

$25.95
 
 
ISBN
9780001053373
Date Released
Binding
Audio
 
Dimensions
103 x 131mm

Out of Print

Description
Information
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.
ISBN:
9780001053373
Publication Date:
16 / 05 / 1997
Dimensions:
103 x 131mm

You might also like