I have 3 GPS units, all made by different companies, marine on my boat, in my car, and a hand held used for hiking. If there are no satellites, how do all GPS units, tell the person EXACTLY where they are in the world within 10 feet? The marine unit tells me the depth of the water, and where all the channels are...within 5 feet. And as soon as I take the antenna off, it doesn't work. As soon as I go under a bridge....IT DOESN'T WORK. So, tell me how it works. Also, depending on the time of day, it will tell you which of the several satellites you are linked with....and will give you a signal of each one. I've had up to 5 or 6 linked at once, and the more that are linked, the better it will give your position.
And another question. If there is no gravity....how does the sun and moon stay in the air? Why haven't we ran into it if the earth is accelerating upwards. You'd think we would have hit the sun by now. What holds it up there?
Also, why doesn't the ice fall of the edge? If the ice holds the water in....what holds the ice on the edge? Why doesn't it fall off too?