How a GPS Works
BackIn this NASA video segment a NASA expert explains the inner workings of the Global Positioning System (GPS). Learn more about trilateration and how four satellites work together to identify exact locations on Earth with the help of a two-dimensional model.
Category: Education
Uploaded: July 9th, 2008 @ 6:40 pm
Author: NASAeTV
Length: 04:11
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Views: 1,546
Tags: alonso gps satellite
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