Explain to me why those three tires roll up the ramp. I first saw this video on ebaumsworld pre-Youtube, it's looked wrong to me for twenty goddamn years.
At 25 seconds in, one wheel that has been knocked off a component I don't recognize rolls across the floor and hits another wheel at the base of a ramp, which is nudged forward and then accelerates up the ramp as if something is applying a torque to it until it hits another wheel, which does the same thing.