begin with t, end with ime. time. by stretching out the time. you'll have enough force of friction between that big wheel and the track to get all those cars in motion. that's right. ain't that neat? it's like taking your courses in school. did you ever take 80 units at once? [laughter] honey, you can't pull 80, 80 units at once, right? it's like taking a summer course and maybe, like, three calculus courses in the chemistry lab and then in 10 weeks-- you can't do that. you need more--time. you like to see something neat? it's called the swinging wonder. watch this, gang. i gonna be lifting one of this balls up. that's strange. only one ball came out the other side. i'm gonna be lifting two balls up. that's strange. two came out the other side. i'm gonna be lifting four balls up. no. i lifted three, i said four. i thought maybe it might be what i'm saying, okay? and it turns out it wasn't what i was saying. let's see what happens if i do lift four balls up. but there's only 1, 2, 3, 4, 5, 6, 7. let's try it. that would be wild if four balls came