GPS

=First Applet:= Here is a radio receiver applet http://micro.magnet.fsu.edu/electromag/java/radio/ My applet is a radio receiver. This is used with inductor coils in tuning circuits of radios, television sets, and other devices (GPS). Here is a capacitor that is connected to Antenna. You can drag on the slider bar to adjust the frequency. Also, you can figure out the wavelength of the radio waves.

=Second Applet:= Here is a how GPS works and give radio waves to the receiver. http://www.essp.be/movies/Animated%20description%20of%20EGNOS%20AENA.swf Ranging and Intgrity Monitoring Stations receive Satellite signal. When they have the data, they send it to the Mission Control Centers. The Mission Control Centers make sure the accuracy of the information and calculate the presumable distraction. Then, send all the information to the Navigation Land Earth Stations. The Navigation Land Earth Stations send the final signal to the satellites. Three satellites (Making sure the accuracy of the calculating position) send the signal to the GPS device. They obtain accurate data about the position where the person is.

=Author of each applet:= http://micro.magnet.fsu.edu Radio receiver applet is from the website called " Molecular Expressions. " This website is brought by the Optical Microscopy Division of the National High Magnetic Field Laboratory, a joint venture of The Florida State University, the University of Florida, and the Los Alamos National laboratory. The director of the Optical Microscopy Division is Michael W. Davidson, a research scientist who has been involved with various aspects of microscopy for the past 25 years.

http://www.essp-sas.eu/ The GPS animation is provided by The ESSP (European Satellite Service Provider) which was founded on 2001 and initially formed as an European Economic Interest Grouping (EEIG). This legal form was appropriate for the development phase of the company.In 2008 the ESSP was transformed into a new company of limited liability - the ESSP- SAS, and moved from Brussels to Toulouse. Its share holders are 7 key European Air Navigation SErvice Providers (ANSPs), which were also members of the initial EOIG (EGNOS Operator and infrastructure Group). Their satellites could be extended to cover Africa, Eastern European countries, and Russia. EGNOS is Europe's own global satellite navigation system for the future.