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GPS
PHYSICS OF GPS
Newton's First Law
•An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force
Gravitational force
Gravity is continually pulling the satellites down around the earth
The satellites are in a constant free falling state
Electromagnetic waves
Electromagnetic waves do not need a medium to travel through, allowing them to move in a vacuum
This makes these waves perfect for sending data to and from space
Commercial Application
EASE
$109.95
3.5” screen
Maps of U.S. and Canada
Announces Street Names
340S and 540S
4.3” screen for $139.95
5” screen for $159.95
Maps of U.S., Canada and Mexico
Advanced lane guidance
350TM and 550TM
4.3” for $169.95
5” for $199.95
Lifetime traffic and map updates
Superior driving intelligence
Choose your own design!
Flags, sports, nature, and other designs also available.You can even upload your own!
Mmm! Guide you there, I will! $12.95 – Celebrity voice cards Vader Homer Simpson John Cleese Mr. T Others
GPS Anecdotal Materials
The Three Satellite
NAVTOOLS ROUTE is a complete route planning application. Unlike any other similar application. NavTools Route is able to calculate the most economical engine rpm setting to reach your destination on schedule, taking into account average or predicted weather along the route (data will include wind speed and direction as well as wave heights and current). Many handy tools are included.
THE HISTORY OF GPS
Beginnings in WWII
LORAN and Decca Navigator
Used to guide ships away from shorelines
Heavily used by the Navy during WWII
Developments in the 60’s
Transit and Timation Systems Transit is the first satellite navigation
system also used by the Navy
US Navy develops Timation satellite that proved the ability to put accurate clocks into space
GPS relies on this technology
Movement toward GPS
Cold Arms Race helped justify spending the money for research and development of GPS
US Navy and Airforce jointly work together on their missile systems
Enabled them to pinpoint their location prior to launch
1973 military officials at the pentagon agree on a single superior system Navstar, later known as GPS
THE ENDLESS USES OF GPSAND THE FUTURE
