the Global Positioning System was invented by the U.S. Department of Defense (D.O.D) and Ivan Getting, at the cost of twelve billion taxpayer dollars
http://www.wild-heerbrugg.com/gps_timeline.htm
The Global Positioning System became fully operational on April 27, 1995. Prior to that date, the long and complex process of launching and synchronizing satellites had been going on for years....
http://www.ehow.com/how_2363862_hack-runescape.html?ref...
The global positioning system (GPS) was developed by the U.S. Department of Defense to provide information about location, such as the coordinates of a military target. It is now available for public use and has been incorporated into many ...
http://www.afb.org/afbpress/Pub.asp?DocID=AW030303
The Global Positioning System was developed by the U.S. Department of Defense (DOD) as a global navigation system, originally made exclusively for the military, later released for civilian use
http://www.gvsu.edu/wri/isc/index.cfm?id=2F6CF6B5-9278-...
Global positioning systems are great tools, but map and compass will provide the same type of information and actually have some advantages over GPS. The key advantage is that a compass does not require batteries. A GPS does read more Jus...
http://www.helium.com/knowledge/51246-compass-global-po...
Compared to ground based NavAid Instrument Flight Procedures, a Global Positioning System Instrument Flight Procedure is normally less expensive to obtain and maintain. Under the best conditions, a GPS Instrument Flight Procedure can be dev...
http://www.naco.faa.gov/index.asp?xml=ifp/faq#q1
No it has it's own system called Time And Relative Dimensions In Space.
http://answers.yahoo.com/question/index?qid=20080414082...