Global Positioning System (GPS) Presented by Dave Ketchen
What is a GPS? A global positioning system is a navigational system involving satellites and computers that can determine the latitude and longitude of a receiver on Earth by computing the time difference for signals from different satellites to reach the receiver
History Invented by MIT graduate Ivan Getting
History Originally consisted of 11 satellites
History GPS technology originated in the 1950’s Sputnik was crucial to America’s technology revolution
History
History 1973 America decided to develop a system
History 1977 Triggered an important series of events
How GPS Works GPS requires 24 satellites
How GPS Works Trialation
What GPS Can Do Shows how far you have traveled How long you have been traveling Current speed Average speed A “ bread crumb” trail showing you exactly where you have traveled Estimated time of arrival Current Map
Price Range Publically sold GPS can be found anywhere from $80 to $1,900.
Conclusion
Works Cited http://www.maps-gps-info.com/gps-history.html http://www.howstuffworks.com/gadgets/travel/gps.htm