The Speed of Lights in the Atmosphere

We know exactly how radiowaves work here. And in the atmosphere and in everything, because radio waves are light wahs. We only get a signal back if we point it at the moon. So that was the only point. What next point? Wht, what's your next point? You were saying that the speed of lights consteoe, no, it changes based on whether or not it's in something like slow down in water. Ar e goes on like five minutes. Can't remember everything you said. You got stop sletons. One tent a time. Et im finish, and then we'll go on point a time. Xmin one point at a time