Posts Tagged ‘GPS Navigation System’
GPS Navigation System ? How It Works
February 18th, 2010
The Global Positioning System (GPS) was originally developed by U.S. military satellites were launched (the first satellite was launched in 1978) is moving towards employment. The system consists of a network of 24 to 32 satellites orbiting at about 7,000 mph, in a way, twice a day.
In the early days, the soldiers could not trace the signal, but in the 1980s, was opened to the public. Read the rest of this entry »
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