A marine chronometer is a clock that is precise and accurate enough to be used as a portable time standard; it can therefore be used to determine longitude by means of celestial navigation. When first developed in the 18th century it was a major technical achievement, as accurate knowledge of the time over a long sea voyage is necessary for navigation, lacking electronic or communications aids. The first true chronometer was the life work of one man, John Harrison, spanning 31 years of persistent experimentation and test that revolutionized naval (and later aerial) navigation enabling the Age of Discovery and Colonialism to accelerate.
Former Talking Heads frontman David Byrne join a growing list of public figures and artists confronting the growing gun control crisis in the US this week by penning an impassioned plea in an essay in support of firearms restrictions, Billboard reported.Less than two weeks after the massacre at the Pulse nightclub in Orlando, Fla., Byrne wrote, “We ware [sic] are ware here,” in an essay entitled “Guns Are About Freedom....
In the workshop was an oven that archaeologists think might have been used to make bronze objects.The excavation of that and a second ancient shop started in May near a necropolis in the Herculaneum port area. Archaeologists are puzzling over what kind of business the second shop did ... tomb of an adult, complete with funerary vases ... Pompeii and nearby Herculaneum were ancient Roman towns....
David Cameron has resigned as British prime minister following the failure of his Remain side to win the referendum on staying in the EU. Mr Cameron called the vote on Brexit in 2013 under pressure from the anti-EU wing of his Conservative Party and Ukip, hoping to end decades of debate over the UK’s ties with Europe... With a turnout of 72.2 per cent, 51.9 per cent voted to leave; 48.1 per cent voted to remain ... Irish government reaction....
By the turn of the century, Glashuette counted as many as 20 companies that manufactured watches, marinechronometers and grandfather clocks ... After World War II, the town’s half-dozen remaining watch companies were expropriated by East Germany’s communist government and merged into a state-owned “kombinat,” which continued to manufacture mechanical watches, marinechronometers and, from the 1980s, inexpensive quartz watches. ....
On Quartz’s first day at the fair, perhaps none of these marquis mega-watches blew our minds quite like the Ulysse NardinGrandDeckMarineTourbillon... (Ulysse Nardin launched in 1846 and made its name manufacturing marinechronometers ... at sea.) One of 18 Grand Deck Marine Tourbillons.(Courtesy/Ulysse Nardin.)....
he 1,000-square-foot store contains the entire scope of Ulysse Nardin’s collection, including its signature MarineChronometers, the iconic FreakLab, and other high watches ... ....
LONDON... Activists and female politicians, however, say that the new travel document is a step backward because it features seven men but only two women ... It is an "opportunity to celebrate the achievements of women," she said ... The six others on the passport are Shakespeare; the painter John Constable; John Harrison, who invented the marinechronometer; the architect Giles Gilbert Scott; and the sculptors Antony Gormley and Anish Kapoor ... ....
The new gallery will allow the Science Museum's three million plus visitors a year to enjoy one of the best horological collections in Britain - from the first mechanical clocks and marinechronometers used at sea to the traditional wrist watch ...The Collection contains more than 600 English and European watches, 80 clocks and 25 marine timekeepers, together with a number of rare horological portraits....
Chopard resurrects the name of historical horologist Ferdinand Berthoud (1727-1807), a Swiss maker of marinechronometers, as the patron of a new, ultra-luxurious micro brand with limited production.... ....
In the 19th Century, Ulysse Nardin manufactured highly accurate marinechronometers for ships throughout the world. Patrik Hoffmann, Ulysse Nardin CEO, says this nautical heritage makes the partnership with Artemis Racing “a perfect match.”... ....
The name was later used a few decades later to describe marinechronometers—clocks suspended in gyroscopic boxes that helped ships determine longitude and traverse the world's oceans ... Just as marinechronometers pushed exploration by ship, accurate pocket watches made it possible to standardize time across the U.S. railroad system ... The Globemaster is the first watch to bear a new certification, MasterChronometer....
At the time mariners needed a device for solving the problem of establishing the East-West position or longitude of a ship at sea ... Motivated by this incentive and highly skilled as a clock maker, Harrison set to work, and invented the marinechronometer ... The �20,000 prize was never awarded, even though Harrison's fifth chronometer, known as H5, far exceeded the Parliament's requirement....
Ashes fever ... AP. By Rob Bagchi ... But as each car stuck at the lights simultaneously heard the radio bulletin informing us that Glenn McGrath had stepped on a ball and had been ruled out of the game, the line of traffic gently began to bounce in the manner of Trotters Independent Traders’ Reliant Regal Supervan a few minutes after Del-Boy and Rodney learnt that their Harrisonmarinechronometer had been bought for £6.2 million ... ....
Ivy Kupec is a media officer at the U.S.National Science Foundation. She contributed this article to LiveScience's Expert Voices. Op-Ed & Insights. Prior to the mid-18th century, it was tough to be a sailor — you couldn't set out for a specific destination and have any real hope of finding it quickly if the trip required east-west travel ... As a result, he won the Longitude Prize for building the first compact marinechronometer....