GPS

Global Positioning System

How does GPS work?


gps device.jpg

http://electronics.howstuffworks.com/gadgets/travel/gps.htm

It is pure Geometry... :-)

I did not say "simple", I said "pure" Geometry...

1. Satellites in orbits

2. Atomic Clocks

3. The Speed of Light

4. Tansmitters and Receivers

5. Computerized Mathematical (Geometric) Calculations involving Spheres and Straight Lines

6. Tracking Systems and Coordinates

7. Hardware and Software

etc.

Scientists and Engineers invented all this "stuff"...