later on, come to the edgeway, crash into the ground. roll it faster. crash into the ground over there. roll it faster. boom, still crash into the ground. i wonder if there'd be a speed you could move it such that it would clear the gap. how many say, oh, no, there's no way to clear that gap? stand up, go on. see if you're sitting next to someone who can calculate in their mind, the reason in their mind or come up with the answer, how fast it gotta go to clear the gap? what'd be the answer, gang? past tense of eat... 8, 8 kilometers per second, you're gonna clear the gap. how about if you make the gap this big? gonna clear that gap? how about you make the alley this big? here's the alley, now here's your gap, get it going 8 kilometers per second, what are you gonna do? you're gonna clear the gap, you come right back again. take it away and send it-- so it keeps moving at steady speed because it's always being pulled sideways to the way it's moving, yeah? have we got that? someone asks you, how come the satellites keep going the same speed, oh, maybe the