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Hiccup In Space-Time Continuum Brings Chaos To Internet
2012-07-02 11:01:29

John Neumann for redOrbit.com - Your Universe Online Did you find some of your favorite websites acting wonky this weekend? If so, you may want to blame the omniscient keepers of all knowledge for that. No, not the galaxy-sized blue-skinned creatures that keep the universe in balance, but the big brains at the International Earth Rotation and Reference Systems Service (IERS), who monitor the gaps between atomic and planetary time and work to keep everything synced. As such, these...

Leap Second
2012-06-30 10:41:36

Michael Harper for redOrbit.com — Your Universe Online Is there anything a scientist can´t do? Looking past the state of mobile computing – which is already pretty amazing, when you think about it – there are scientists and researchers who are planning trips to the moon as well as growing bio-computers, living computers, in their labs. What will they think of next? With some clever understanding of the Earth´s rotation and a little trickery, scientists at the...

2012-04-30 14:48:01

Transmitting extremely precise clock signals over long distances could help pave the way to a new definition of the second Atomic clocks based on the oscillations of a cesium atom keep amazingly steady time and also define the precise length of a second. But cesium clocks are no longer the most accurate. That title has been transferred to an optical clock housed at the U.S. National Institute of Standards and Technology (NIST) in Boulder, Colo. that can keep time to within 1 second in 3.7...

Image 1 - New Blueprint To Keep Nuclear Clock Accurate Over Billions Of Years
2012-03-20 04:00:26

A clock accurate to within a tenth of a second over 14 billion years — the age of the universe — is the goal of research being reported this week by scientists from three different institutions. To be published in the journal Physical Review Letters, the research provides the blueprint for a nuclear clock that would get its extreme accuracy from the nucleus of a single thorium ion. Such a clock could be useful for certain forms of secure communication — and perhaps of...

Nuclear Clock Keeps Time With The Universe
2012-03-10 05:58:16

As time passes, new technology evolves in order to keep time. Soon the trusty atomic clock may be replaced by a nuclear clock, which keeps time to 1/20th of a second in 14 billion years. In early time, the sun or grains of sand in an hourglass kept time. Over the years technology allowed for clocks you could wind, watches with quartz oscillators, and more recently the atomic clock. The atomic clock uses an electronic transition frequency to keep time. Considered quite accurate, atomic...

2012-02-01 23:43:34

The ability to accurately measure a second in time is at the heart of many essential technologies; the most recognizable may be the Global Positioning System (GPS). In a paper accepted for publication in the AIP's journal Review of Scientific Instruments, a researcher at the National Institutes of Standards and Technology (NIST) and the University of Colorado at Boulder discusses how achieving a stable and coordinated global measure of time requires more than just the world's most accurate...

Leap Seconds Get A Three Year Reprieve
2012-01-20 09:28:53

An attempt to eliminate leap seconds and permanently change how time is measured has been postponed until 2015 by the International Telecommunications Union. ITU Radio-communication Assembly delegates on Thursday were unable to come to an agreement on whether to stop adding leap seconds to the world´s atomic clocks to keep them synchronized with Earth´s rotational cycles. The ITU will now spend the next three years conducting further studies “to ensure that all the...

Are Leap Seconds Becoming A Thing Of The Past?
2012-01-18 09:32:49

For at least ten years experts have been debating the use of leap seconds, tiny bits of time added to calendars and clocks in hopes of reconciling the difference between atomic time used by computer systems and time as defined by measuring the Earth´s movement around the sun and its daily, but slightly slowing, rotation. Governments have been split on the issue but are expected to make a decision this week at a UN telecom meeting, says the International Telecommunications Union (ITU)...

tech-082611-005a
2011-08-26 12:27:20

  Researchers have found that an atomic clock at the U.K.'s National Physical Laboratory (NPL) has the best long-term accuracy of any other clock in the world. Studies of the clock's accuracy show it is nearly twice as accurate as previously thought. The clock would lose or gain less than a second in about 138 million years. The NPL's CsF2 clock is a "caesium foundation" atomic clock, in which the "ticking" is provided by the measurement of the energy required to change a...


Latest Second Reference Libraries

0_3c981185d3336687e1466aa007bb3157
2009-07-10 12:54:52

Cesium (or Caesium) is a chemical element with the symbol Cs and atomic number 55. Caesium is a soft alkali metal that is silvery-gold. It melts and liquefies at 83 degrees Fahrenheit and is one of only five metals that are liquid close to room temperature. Caesium is a metal that is most widely known for its use in atomic clocks. Cesium comes from the Latin word caesius meaning "˜bluish-gray'. It was discovered in 1860 by Robert Bunsen and Gustav Kirchhoff in Durkheim, Germany in mineral...

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Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'