The technology that changed that was a clock; a very special one that kept accurate time despite changing atmospheric conditions and motion. The invention of the Harrison H1 revolutionized ...

In 1759, Harrison devised the first ever clock to keep the time exactly - in any variation of climate. Thanks to the Harrison's clock keeping exact Greenwich Mean Time, sailors could then ...

Harrison's clocks enabling precise global navigation in the 18th Century, GMT as the global time scale in the 19th, the first accurate atomic clock supporting the transition to atomic time in the ...