Ever wonder how the Global Positioning System (GPS) works? This extraordinarily complex system is actually based on some simple concepts. Find out what they are in this Shockwave game.

It's a shame how many people don't know how to use a compass, especially when the National Park Service lists it as a top 10 safety item. Here's how to get started. The post How to use a compass for ...

The network of satellites and incredibly sophisticated mobile technologies that power GPS navigation has become a ubiquitous part of modern life. Unlike many other modern innovations, GPS systems ...