Home >> Author Archives: Claudette Roulo

Author Archives: Claudette Roulo

What on Earth is the Global Positioning System?

GPS is everywhere—on your phone, in your car, even on your wrist—but what the heck even is it and how does it work? GPS is short for Global Positioning System. It’s a satellite-based navigation system that helps people find their precise location on Earth. Before GPS, navigation involved paper maps or very specialized tools like sextants and chronometers. Now, satellites ...

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