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Can we trust our GPS devices?: In recent years, we have become increasingly dependent on applications using the Global Positioning System GPS, such as railway control, highway traffic management, emergency response or commercial aviation. But in a very short news release, the American Geophysical Union AGU warns us that we can't always trust our GPS gadgets...; Tags: Satellite, Occultation, GPS, Handhelds, Consumer Electronics, Personal Technology, Hardware, Roland Piquepaille; Blog posts 2008-06-10
COSMIC satellites to study atmosphere: If all goes well, the COSMIC six-satellite array will be launched today at 5:10 PM PDT by a Minotaur rocket from Vandenberg Air Force Base. The $100 million constellation will use the U.S. Global Positioning System GPS signals to track hurricanes, climate change, and space weather. And these satellites will...; Tags: GPS, radio, satellite, COSMIC; Blog posts 2006-04-14