Monday, April 16, 2007

John Harrison - chronometer inventor

John Harrison - Wikipedia, the free encyclopedia: "John Harrison (March 24, 1693–March 24, 1776) was an English clockmaker who revolutionised and extended the possibility of safe long distance sea travel in the Age of Sail by inventing a long-sought and critically-needed key piece in the problem of accurately establishing the East-West position, or longitude, of a ship at sea."

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