Part 1 of Essay
It has been helping scientists find answers to the unknown, aiding companies like VISA incorporation to spread around the globe, and assisting tourists finding their way when they become lost. The world has profited from artificial satellites since 1951, when Russia launched the first man made satellite called “Sputnik I” ....

Part 2 of Essay
.... provides users with accurate information about their latitude, longitude, velocity and altitude, as well as the time, anywhere in the world and works in all weather conditions. The GPS was initiated in 1973 by Navstar in the United States and then followed by the Soviet Union with their own GPS. Both GPS systems are free to use by anyone around the world and offers great benefits to the military, commercial companies and civilian residents. On the military side, the U.S. Air Force uses the GPS to test unmanned ....