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How Satellites Track Your Exact Location

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 Physics   |   Science   |   Technology
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GPS has become a staple on any smartphone, but how does it work?

How Does Your Brain’s GPS Work? ►►►► http://dne.ws/1XfwdhD
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Read More:

How GPS Receivers Work
http://electronics.howstuffworks.com/gadgets/travel/gps2.htm
“Fundamentally, three-dimensional trilateration isn't much different from two-dimensional trilateration, but it's a little trickier to visualize. Imagine the radii from the previous examples going off in all directions. So instead of a series of circles, you get a series of spheres.”

Real-World Relativity: The GPS Navigation System
http://www.astronomy.ohio-state.edu/~pogge/Ast162/Unit5/gps.html
“The current GPS configuration consists of a network of 24 satellites in high orbits around the Earth. Each satellite in the GPS constellation orbits at an altitude of about 20,000 km from the ground, and has an orbital speed of about 14,000 km/hour (the orbital period is roughly 12 hours - contrary to popular belief, GPS satellites are not in geosynchronous or geostationary orbits).”

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