How does GPS work?

GPS or global positioning systems work as a part of 24 satellites orbiting the earth.  A GPS receiver in your car (or a portable handheld model) picks up the satellites signals and converts it into information usable by you to find your way from location to location.

The GPS receiver connects with several satellites and determines its (and your) location based on it physical relationship to those satellites. 

Now, let's look at the many uses of GPS...