Who invented the Global Positioning System and how much did it cost to develop it?
A Yahoo! search on “global positioning system” resulted in plenty of sources of information. Choosing the first web site match, we headed to a web page from the National Academies, an organization comprised of the National Academy of Science, the National Academy of Engineering, and the Institute of Medicine — all of which are private, non-profit, self-governing membership organizations. They share the responsibility of advising the federal government on questions of science and technology. The article that piqued our interest was titled, “The Global Positioning System: The Role of Atomic Clocks.” It explained that on June 26, 1993, the U.S. Air Force launched the 24th Navstar satellite into orbit, completing a network of satellites known as the Global Positioning System. However, this new navigation te