A good marine GPS can provide much more than just accurate positioning, with a range of plotting, sonar, and safety features available. The challenge comes in deciding which of these you need, which ...

To prepare for the possibility that it will one day deploy swarms of uncrewed drone submarines, the U.S. Navy is developing a system that will allow the global positioning system (GPS) to function ...

It's a sure bet that The Odyssey by Homer would have been a lot less interesting to read if the protagonist had been given a better sense of direction. But whatever the literary merits associated with ...