GPS (Global Positioning System)

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What is GPS?

The Global Positioning System (GPS) is a system of 31 satellites circling the Earth at an elevation of 20,000 km. Of these 31, no less than 24 are dependably in activity. Albeit at first created by the US Govt for military route, these days, it is a usually utilized route framework around the world. All that is required, is a GPS gadget, be it a SatNav, a cell phone or a hand-held GPS unit.

photo via wikipedia
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