Instant Access To 100,000+ Essays!

“The global positioning system (GPS) is a satellite-based system for determining accurate positions on or near Earth’s surface (Physical Geo p.43)”. “The GPS system was developed in the 1970’s and 1980’s by the US defense department to aid in guiding missiles, navigating air crafts, and controlling ground troops (Physical Geo p.43)”. GPS is based on 24 satellites. They are set up so that a minimum of four are in the view of the earth atmosphere. The accuracy of GPS is greater then that of a base map. In 1983, President Ronald Reagan made access to the system free to the public, and astounding commercial growth has resulted (Physical Geo p.43)”. The ideal that eventually everything in the near future will be using the system of GPS, for example cars. The graph above shows how much each part of the military spends