Does the U.S.A have the technology to launch a sattelite were everyone can have wireless internet connection all over the world?If so why havent they launched one yet?
by 
cornleaf
ANSWERS: 3
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They would probably would just like russia. But it would be about security and prevention of hackers.
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No. No one sattelite could provide continuous service to everybody in the world. It would take what they call a constellation of low-earth-orbit tranceivers or a bunch of geosynchronous ones. Either solution would cost billions of dollars. There are a couple of commercial ventures offering this service for a fee. Connexion by Boeing is one. Even using the best and fastest available devices I don't think we could produce such a system with enough banwidth (throughput, gigabytes per second) to serve everybody that currently uses phone, DSL, cable or wireless internet access and still serve at a reasonable speed... well... OK it is possible, but not economically feasible... and it would take a lot of years to get it all working... and then there is the cost of the radio on the user's end... and as soon as you got it all working, it would be obsolete... Anyway, possible, practical and economically viable are three very different things...
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No - it's line of sight. If you take a ball, representing the earth. And then if you hold a smaller object (like a raisin) away from it to be the satellite, at no point can you get the satellite in position to reach every part of the planet at once. In fact you will only get less than half the surface covered regardless of how far away the satellite would be due to the Earth's surface not being totally flat. Obviously the closer the satellite is the the surface, the smaller the area the signal can reach without being blocked by the Earth itself. The only option would be to build a satellite with a transmitter that was so powerful the signal could travel through the very core of our planet, and I would stake my ham sandwich on the fact that this isn't possible at the moment. Plus, why would they care that a blind woman in Sudan with 14 children and no house cannot receive a internet connection?
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