1. Global Positioning System or GPS
GPS - Global Positioning System What is GPS GPS Definition : Global Positioning System The Global Positioning System, usually called GPS, and originally named NAVSTAR, is a satellite-based navigation system used for determining one's precise location and providing a highly accurate time reference almost anywhere on Earth. ... The first of 24 satellites that form the current constellation of the Global Positioning System (Block II) was placed into orbit on February 14, 1989. ... Hand-held GPS and car/boat kits Recreational uses of GPS are almost as varied as the number of recr...
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- Grade Level: High School