The way GPS works is pretty simple. It times how long a signal takes to go from the satellite to the reciever and uses three or more satellites to triangulate your position. With one satellite all it can figure out is you are a certain distance from the satellite. For all it knows, you could be half way to the moon. With two, it can narrow it down to a strip of land that is fairly small. With three, it can narrow it down to just a couple meters. I tried to find my house but it was just a dot. The quality was extremely low. But I did find my unfinished dorm(this is its first year open). That was a pretty good shot. The new science building isn't quite finished either.

Message edited on: 04/09/2005 22:47