World's most accurate clocks are synchronised to a quadrillionth of a second - and it could change how we define time



Time may be relative, but physicists are a stickler for accuracy.
While many of us may give a few minutes’ grace to the timepieces in our homes, one group of scientists has successfully synchronised a pair of optical clocks to within a million billionths of a second.
By measuring time to such a fine point of accuracy, physicists could ultimately change the length of a second.
SUPER ACCURACTE CLOCKS  Physicists in the US fired a laser beam between two buildings more than seven miles (12 km) apart.
At either end they used optical clocks to detect regular laser pulses every five nanoseconds –... read more

 
12 October 2016 in Science &Technology, Views: 38
Source: Daily Mail
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