New atomic clock may ’redefine the second’
2013 07 10

By Heather Saul | The Independent

A new clock has been developed by Parisian scientists that could redefine the second.

Current technology relies on atomic clocks to keep track of the seconds and provide a measure of time. However, researchers have now developed ‘optical lattice clocks’, which lose just one second every 300 million years, making it potentially a more accurate measurement of time.


The optical lattice clock shines lasers on atoms to measure time

Atomic clocks are accurate to one second every 100 million years, making them three times as accurate when measuring time.

The traditional grandfather clock uses a pendulum swing to measure intervals of time and the atomic clock uses very regular vibrations of atoms. This new system uses light to excite strontium atoms.

Speaking to the BBC, Dr Jerome Lodewyck, from the Paris Observatory, said: “In our clocks we use laser beams. Laser beams oscillate much faster than microwave radiation, and in a sense we divide time in much shorter intervals so we can measure time more precisely.”

[...]

Read the full article at: independent.co.uk







Related Articles
Eternal Clock Could Keep Time After Universe Dies
Time is money: British police spent $54,000 on calls to talking clock
PHARAO atomic clock agreement signed by ESA and CNES
Astronomical Clocks – Literally and Metaphorically
Decoding Space and Time in the Brain
The Man Who Hears People Before They Speak


Latest News from our Front Page

Google’s New Computer With Human-Like Learning Abilities Will Program Itself
2014 10 30
In college, it wasn’t rare to hear a verbal battle regarding artificial intelligence erupt between my friends studying neuroscience and my friends studying computer science. One rather outrageous fellow would mention the possibility of a computer takeover, and off they went. The neuroscience-savvy would awe at the potential of such hybrid technology as the CS majors argued we have nothing to ...
Former Cop Headed to Trial for Raping a Child While Other Officers Watched
2014 10 30
Pharr, TX — Trial is set to begin December 1, in the case of former Pharr police officer Erasmo Mata, Jr., accused of repeated first-degree felony sexual assaults of a child. A federal civil lawsuit filed with Texas Southern District Court back in May accused Mata of assaulting the minor five times, on five separate occasions, all while on duty. ...
It Has Been Decided; Jeb Bush vs Hillary Clinton in ’16
2014 10 28
NY Times: The Bushes, Led by W., Rally to Make Jeb ‘45 ’ As Jeb Bush nears a decision to become the third member of his storied family to seek the presidency, the extended Bush clan and its attendant network are largely rallying behind the prospect and pulling the old machine out of the closet. Rebuttal by The Anti-New York ...
Putin at Valdai - World Order: New Rules or a Game without Rules
2014 10 28
From Youtube: Russian President Vladimir Putin is delivering a speech at the plenary session of Valdai International Discussion Club, a forum involving the world leading experts at foreign and domestic policy.
Hillary – Says Business does NOT Create Jobs – Washington Does?
2014 10 28
We have a very serious problem with Hillary. I was asked years ago to review Hillary’s Commodity Trading to explain what went on. Effectively, they did trades and simply put winners in her account and the losers in her lawyer’s. This way she gets money that is laundered through the markets – something that would get her 25 years today. People ...
More News »