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Latest Atomic clock Stories

2011-05-12 00:20:48

A team of physicists from the United States and Russia announced today* that it has developed a means for computing, with unprecedented accuracy, a tiny, temperature-dependent source of error in atomic clocks. Although small, the correction could represent a big step towards atomic timekeepers' longstanding goal of a clock with a precision equivalent to one second of error every 32 billion years"”longer than the age of the universe. Precision timekeeping is one of the bedrock...

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2011-05-04 08:15:19

Sandia researchers develop tiny laser that reduced power consumption 1,000-fold A matchbook-sized atomic clock 100 times smaller than its commercial predecessors has been created by a team of researchers at Symmetricom Inc. Draper Laboratory and Sandia National Laboratories. The portable Chip Scale Atomic Clock (CSAC) "” only about 1.5 inches on a side and less than a half-inch in depth "” also requires 100 times less power than its predecessors. Instead of 10 watts, it uses only...

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2011-02-04 08:20:46

In a paradox typical of the quantum world, JILA scientists have eliminated collisions between atoms in an atomic clock by packing the atoms closer together. The surprising discovery, described in the Feb. 3 issue of Science Express, can boost the performance of experimental atomic clocks made of thousands or tens of thousands of neutral atoms trapped by intersecting laser beams. JILA is jointly operated by the National Institute of Standards and Technology (NIST) and the University of...

2011-01-24 07:00:00

SAN JOSE, Calif., Jan. 24, 2011 /PRNewswire/ -- Oclaro, Inc.( )(Nasdaq: OCLR), a tier-one provider of innovative optical communications and laser solutions, today announced that it has developed single-mode Vertical Cavity Surface Emitting Lasers (VCSEL) for atomic clocks and these lasers are being used by Symmetricom, a world leader in the design and manufacturing of frequency standards, in its SA.35m miniaturized rubidium atomic clock. Featuring ultra-high stability, low noise and a...

2010-10-14 15:09:59

Researchers from the National Institute of Standards and Technology (NIST) and the German national metrology institute have used NIST's miniature atom-based magnetic sensor to successfully track a human heartbeat, confirming the device's potential for biomedical applications. Described in Applied Physics Letters,* the study is the first to be performed under conditions resembling a clinical setting with the NIST mini-sensors, which until now have been operated mostly in physics laboratories....

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2010-09-25 06:15:00

Scientists said Friday they have found that climbing stairs or a mountain really can age you faster than going for a quick trip in your car. The study proves Einstein's theory of relativity -- which states that time flies at high altitude, but slows down when people speed up. Experiments in the past proved the basic premise of Albert Einstein's theory, sending an atomic clock into space on a rocket and comparing it to one kept behind on Earth, where gravity acts to slow the passage of time....

2010-09-21 15:15:00

HOUSTON, Sept. 21 /PRNewswire/ -- Integrated Electrical Services (www.ies-co.com) (Nasdaq: IESC), a leading national provider of electrical and communications systems and services for the commercial, industrial and residential markets, announced today that it has been awarded a contract for the installation of electrical systems at the Precision Measurement Laboratory (PML) at the National Institute of Standards and Technology in Boulder, Colo. (NIST) (www.boulder.nist.gov). IES is...

2010-07-21 14:20:17

Maintaining the correct time is no longer just a matter of keeping your watch wound -- especially when it comes to computers, telecommunications, and other complex systems. The clocks in these devices must stay accurate to within nanoseconds because their oscillators -- objects, like quartz crystals, which repeat the same motion over and over again -- are synchronized to agree with the clocks on board Global Positioning System (GPS) satellites. In the journal Review of Scientific Instruments,...

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2010-06-10 08:46:48

In an advance that sounds almost Zen, researchers at the National Institute of Standards and Technology (NIST) and JILA, a joint institute of NIST and the University of Colorado at Boulder, have demonstrated a new type of pulsed laser that excels at not producing light. The new device generates sustained streams of "dark pulses""”repeated dips in light intensity"”which is the opposite of the bright bursts in a typical pulsed laser. Despite its ominous name, the dark pulse laser is...

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2010-05-28 10:28:52

Clocks in the Americas and the Caribbean Islands are now ticking in unison thanks to the work of the Sistema Interamericano de Metrologia (SIM), a regional metrology organization that works to promote accurate measurements throughout the Americas. Since 2005, SIM has been building a time network, designed by the U.S. National Institute of Standards and Technology (NIST), that now extends to 16 nations. The SIM Time Network allows each of these nations to continuously compare their clocks,...


Word of the Day
grass-comber
  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'