Child: ...on the inside of the outside rim

Man: And how do they get to your eye?

Child: There is a picture that reflects off the mirror, and light goes through

Man: OK. When the images...when the mirror is in that position, you can see image. And then what happens to the next image? The next mirror

Child: It...

Man: ...presents some extra images. You must do it quicker than a tenth of a second, so you can see one after another! OK. Give it another spin

Child: That's neat. *laughs*

Man: Isn't that neat? So that's one way of...another way of presenting a series images to your eye. Here's another one...look through the circle pad. Now what do you see?

Child: A whole bunch of racehorses!

Man: Are they going in the right direction?

Child: Yeah!

Man: Are they running in the right direction?

Child: Uh...no
Man: Oh...they are going the other way. We are going to make them move forward