Global Positioning System (GPS)

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Global Positioning System (GPS) Powered By Docstoc
					Presented by Dave Ketchen
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
Invented by MIT graduate Ivan Getting
Originally consisted of 11 satellites
GPS technology originated in the 1950’s


Sputnik was crucial to America’s technology
revolution
1973 America decided to develop a system
1977 Triggered an important series of events
GPS requires 24 satellites
Trialation
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
Publically sold GPS can be found
anywhere from $80 to $1,900.
http://www.maps-gps-info.com/gps-history.html


http://www.howstuffworks.com/gadgets/travel/gps.htm

				
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posted:11/6/2012
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