The Global Positioning System (GPS) has become the de facto navigation system for the entire world. While it wasn’t always available to the public, it has quickly evolved as the favorite means of navigation by nearly everyone. Today, you can find a GPS system in almost every new car model, on cell phones, and several other devices. Where did the GPS system come from and how does it work?

As a personal assistant to a “B” actress, life tends to have its ups and downs. The ups come right after I get off work and the downs come when I walk in her Hollywood Hills mansion. Sometimes the downs come ringing to life at 3 AM with a shopping list. What does a bag of Kettle chips, band aids, Windex, and detachable erasers have in common? It boggles the mind. Try punching in an address into your GPS tracking device at 3 AM and see if you can stay awake.