1.2 - GPS how and why

[@vicg5323]

Very interesting. As one of the first to have used GPS, I can tell you that it's creation was for one purpose only, but after being turned over to the Air Force, it really has flourished like ARPANET, into an indispensable tool in almost all aspects of modern life.

[@nancyw294]

fantastic introduction

[@Aemilindore]

fantastic

[@boubetmathias8832]

GOOD JOB