Why doesn't the force of the sun's gravity, cause a drag on the earth and cause it to slow down and fall into the sun? For, example, if I have a North Pole magnet, and project(throw) a South Pole magnet around it, no matter what speed and direction of my initial throw, will not cause the South Pole magnet to circle the North Pole magnet perpetually. If thrown too fast, it goes past the North Pole magnet, If thrown too slow it immediately crashes into the NP magnet. I don't think there is a speed and direction which would cause the two magnets to orbit. Therefore, the idea that the Earth was given a initial velocity, that would put it into perpetual orbit, is not feasible to me.