'Optical clock' yields split-second success
Physicists said Tuesday that a so-called optical lattice clock, touted by some as the time-measuring device of the future, had passed a key accuracy test.
Physicists said Tuesday that a so-called optical lattice clock, touted by some as the time-measuring device of the future, had passed a key accuracy test.
General Physics
Jul 9, 2013
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Europe stood by its much-delayed and over-budget Galileo satellite navigation system on Tuesday despite a rising price tag and a contractor's description of the project as "stupid."
Space Exploration
Jan 18, 2011
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Nepal has ordered a new measurement of Mount Everest to determine exactly how high the world's highest mountain is.
Earth Sciences
Jul 20, 2011
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A "twisted rope" of magnetically-charged energy precedes solar storms that have the potential to damage satellites and electricity grids, French scientists said on Wednesday.
Space Exploration
Oct 22, 2014
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A problem that rendered as many as 10,000 U.S. military GPS receivers useless for days is a warning to safeguard a system that enemies would love to disrupt, a defense expert says.
Telecom
Jun 1, 2010
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(PhysOrg.com) -- Scientists hope to improve the survival odds of the endangered snow leopard in Nepal by venturing into the remote Himalayas to study its main prey, the Bharal or blue sheep.
Plants & Animals
Nov 6, 2009
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A $5.5 billion upgrade to the Global Positioning System moved a step closer to launch this week when a prototype arrived at a Lockheed Martin complex in Colorado to begin months of tests.
Telecom
Dec 13, 2011
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(PhysOrg.com) -- Britain may soon be using global positioning satellites and advanced speed cameras with number plate recognition technology to track speeding motorists, and according to a report released by the House of ...
Before our Global Positioning System (GPS) navigation devices can tell us where we are, the satellites that make up the GPS need to know exactly where they are. For that, they rely on a network of sites that serve as "you ...
Space Exploration
Feb 23, 2012
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(PhysOrg.com) -- For many people, Global Positioning System (GPS) satellite technology is little more than a high-tech version of a traditional paper map. Used in automobile navigation systems and smart phones, GPS helps ...
Earth Sciences
Apr 15, 2011
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