News tagged with atomic clock
Quantum measurement precision approaches Heisenberg limit
(PhysOrg.com) -- In the classical world, scientists can make measurements with a degree of accuracy that is restricted only by technical limitations. At the fundamental level, however, measurement precision ...
Feb 26, 2010 |
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Ytterbium's broken symmetry: The largest parity violations ever measured in an atom
Ytterbium was discovered in 1878, but until it recently became useful in atomic clocks, the soft metal rarely made the news. Now ytterbium has a new claim to scientific fame. Measurements with ytterbium-174, ...
Jul 22, 2009 |
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Proposed nuclear clock may keep time with the Universe
(PhysOrg.com) -- A proposed new time-keeping system tied to the orbiting of a neutron around an atomic nucleus could have such unprecedented accuracy that it neither gains nor loses 1/20th of a second in 14 ...
Mar 08, 2012 |
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Particle physics study finds new data for extra Z-bosons and potential fifth force of nature
The Large Hadron Collider is an enormous particle accelerator whose 17-mile tunnel straddles the borders of France and Switzerland. A group of physicists at the University of Nevada, Reno has analyzed data from the accelerator ...
Apr 28, 2009 |
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'Quantum Logic Clock' Based on Aluminum Ion is Now World's Most Precise Clock (w/ Video)
(PhysOrg.com) -- Physicists at the National Institute of Standards and Technology have built an enhanced version of an experimental atomic clock based on a single aluminum atom that is now the world’s most ...
Feb 04, 2010 |
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Scientists Build First 'Frequency Comb' To Display Visible 'Teeth'
(PhysOrg.com) -- Finally, an optical frequency comb that visibly lives up to its name. Scientists at the University of Konstanz in Germany and the National Institute of Standards and Technology in the U.S. ...
Oct 29, 2009 |
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GPS getting an upgrade - for $8 billion
(PhysOrg.com) -- GPS is getting an upgrade costing $8 billion (US), which aims to increase the system's accuracy, improve its reliability, and make the technology even more widespread.
May 25, 2010 |
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A step closer to an ultra precise atomic clock
A clock that is so precise that it loses only a second every 300 million years - this is the result of new research in ultra cold atoms. The international collaboration is comprised of researchers from the ...
Apr 16, 2009 |
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No-photon laser: Physicists demonstrate 'superradiant' laser design
Physicists at JILA have demonstrated a novel "superradiant" laser design, which has the potential to be 100 to 1,000 times more stable than the best conventional visible lasers. This type of laser could boost ...
Apr 04, 2012 |
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Research team shows nuclear clock could be 60 times more accurate than atomic clock
(PhysOrg.com) -- For almost sixty years, the world has considered the atomic clock the gold standard for keeping time. Its accuracy is such that it drifts by only about four seconds over a period of about ...
Nov 09, 2011 |
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New 'pendulum' for the ytterbium clock
The faster a clock ticks, the more precise it can be. Due to the fact that lightwaves vibrate faster than microwaves, optical clocks can be more precise than the caesium atomic clocks which presently determine ...
Mar 09, 2012 |
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Video shows nanotube spins as it grows (w/ Videos)
(PhysOrg.com) -- New video showing the atom-by-atom growth of carbon nanotubes reveals they rotate as they grow, much like the halting motion of a mechanical clock's second hand. Published online this month ...
Nanotechnology / Nanomaterials
Jul 27, 2009 |
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New Research Promises Better Atomic Clocks
(PhysOrg.com) -- The most accurate timekeepers in the world are atomic clocks, which tell time based on the absorption of a very specific and unchanging microwave frequency, which induces electrons in an atom to “jump” from ...
Apr 22, 2009 |
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Scientists meet to discuss usefulness of GMT
Leading scientists from around the world are meeting in Britain from Thursday to consider a proposal that could eventually see Greenwich Mean Time relegated to a footnote in history.
Nov 03, 2011 |
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As good as an atomic clock
Australian researchers have invented a new clock that will bring atomic accuracy to your desk.
Technology / Computer Sciences
Jul 06, 2010 |
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