Today's Google Doodle celebrates the birthday of John Harrison, who invented the chronometer, the first accurate way to measure longitude.

In an age where accurate time measurement is taken for granted, the upcoming auction of an 1825 marine chronometer highlights just how far science has advanced in the last 200 years. The invention ...

Another case in point: The 18th-century invention of the marine chronometer by British horologist John Harrison marked a turning point in timekeeping and redefined maritime navigation under tough ...

Inventor of the marine chronometer in 1757. A self-educated English carpenter and clockmaker who invented the marine chronometer, solving the problem of calculating longitude while at sea.

Last week we received an original Hamilton Model 21 marine chronometer, perhaps the most famous timepiece of World War II. While no mechanical timekeeping device can match the accuracy of today’s ...

The means by which this technical challenge came to be solved by John Harrison, a self-educated man from an obscure background, is well known: Dava Sobel explains his invention of the chronometer ...

BBC - A History of the World - About: Transcripts - Episode 91 - Ship's chronometer from HMS BeagleEpisode 91 - Ship's chronometer from HMS Beagle Ship's chronometer from 'HMS Beagle' (made early ...

The word chronometer was first used by English clockmaker Jeremy Thacker in the year 1714. Under the assumption that locking air out would make the timepiece more precise, he invented a vacuum ...

His invention was finally accepted in 1770s, almost 300 years after the voyages of Columbus. It has even been suggested that his chronometer resulted in Britain’s growth as a naval power.

The chronometer was far ahead of its time and it took years before crafty entrepreneurs copied and manufactured the device. Similarly, Nakamoto had to introduce his invention to its first adopters on ...