Every 19 years, the Global Positioning System resets a measure of time built into its program. The latest rollover is Saturday and NPR's Scott Simon asks cybersecurity expert Frank Cilluffo about it.

/ The Undependable Global Positioning System does not believe in God, because it believes in satellites and in particle physics and entrepreneurship. / Use at your own risk, you tourists of oblivion.

The Global Positioning System allows any user equipped with a GPS receiver to determine velocity and worldwide position — latitude, longitude and altitude — within a few meters.

The Global Positioning System (GPS) is a technology that can provide location inputs to a GIS system, to be added to other inputs such as satellite imagery and topographic maps.

Galileo, a European rival to military global positioning systems operated by the United States and Russia, will be able to locate objects or people to within 16.4 ft. (5 m).

To learn more about how GPS calculations are done, check out “How Global Positioning Systems Work” by Ron White and Tim Downs. You’ll find some useful and informative diagrams, too.

The Global Positioning System, or GPS, is pretty much indispensable these days. Phones, tablets, self-driving cars, and drones depend on a network of geostationary satellites high above the earth ...

Android Bluetooth Global Positioning System Software development kit GPS Android ‘smart motorcycle helmet’ gets crowd-funded, goes on pre-order Ben Lovejoy Aug 11 2014 - 6:56 am PT 0 Comments ...