GPS services available in cars, over the phone and in handheld devices are used by only 17% of adults in the U.S., despite recent technology improvements and falling prices, according to an ...

With the rapid development of GPS (Global Positioning System) techniques, GPS gets wider application in many fields. GPS has features such as high precision, global coverage, convenience, high quality ...

As a Navy mathematician in the 1950s and beyond, she played an unheralded but foundational role in making possible the global satellite-based mapping system.