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PostPosted: Fri 19:16, 22 Nov 2013    Post subject: louboutin pas cher Technology and the Importance o

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It is a question that has perplexed philosophers and scientists since the dawn of man, ‘what exactly is time?’ and it has only been in our recent history that we have started to discover answers, thanks [url=http://www.lotogame.fr/louboutin-pas-cher/]louboutin pas cher[/url] to Einstein and his work on special and general relativity.We now know time is not the abstract [url=http://www.nitafrymeece.com/louboutin/]louboutin soldes[/url] concept we first thought it was, we also know it is not constant and is relative to different observers throughout the universe with the speed of light being the only constant in the universe.In other words [url=http://www.nitafrymeece.com/louboutin/]louboutin[/url] if the speed of light has to be the same for everybody then someone travelling at close to such a speed would find time slow down.Fortunately as all humans live within the boundaries of the planet Earth it means the passing of time is very similar for us all (or so minutely different as to be impossible to measure). However, technologies such as satellites [url=http://www.ttcarpets.co.uk]mulberry outlet[/url] and GPS systems have to take into account this altering state of time otherwise they would become wholly inacurate.As humans have progressed, telling the time with ever increasing accuracy has become more and more important. Historically, knowing the time was not so imperative. People needed to know the correct day to plant crops or when sunrise and sunset happened but accuracy was not a [url=http://www.batfriendtrust.it]hogan outlet[/url] preoccupation.However, since the invention of the mechanical clock followed at the turn of the twentieth century by electronic clocks, humans have started to rely on more and more accuracy for their technologies.Seafaring, aviation and now space travel mean that humans have sought more and more accuarte ways of keeping time.In the [url=http://www.renaissancedestoiles.fr]louboutin[/url] 1950’s atomic clocks were developed which were so accurate it was discovered that the revolution of the Earth, something we had based our timescale on for centuries, was no where near as accurate as these new clocks.Now technologies such as the Internet, the [url=http://www.lotogame.fr/hollisterfrance.php]www.lotogame.fr/hollisterfrance.php[/url] Global Positioning System and satellite communication requires absolute precision as light can travel 300,000 km every second meaning accuracies of a split second could mean our [url=http://www.ennenne.it]moncler[/url] satellite navigation systems could be [url=http://www.muvilav.it]woolrich sito ufficiale[/url] out by thousands of miles and computer trading would be nigh on impossible.Fortunately a global time scale, UTC (Coordinated Universal Time), has been developed and is based on the time told by atomic clocks. This [url=http://www.davidhabchy.com]barbour sale[/url] allows systems all over the world to [url=http://www.accrh.fr]doudoune moncler pas cher[/url] be synchronised to the exact same time.Computer networks use the NTP protocol (Network Time Protocol) to receive a UTC timing reference and synchronise all machines on a network to that time.NTP servers can receive [url=http://www.orlando-apts.com/cheapnfljerseys/]nfl jerseys[/url] a time reference over the Internet (although not very secure) from a national radio transmission (as [url=http://www.ennenne.it]moncler sito ufficiale[/url] long as the receiver is within range of a suitable transmission) or [url=http://www.riad-marrakesh.fr]abercrombie pas cher[/url] from the GPS network (via a rooftop GPS antenna). [url=http://www.reedlawky.com/hollisterde.php]hollister online shop[/url]
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