Waterfall (M. C. Escher) - Wikipedia, the free encyclopedia Watch 1080 full screen... YouTube - Waterfall How it's done?... Is this how the Escher Waterfall machine works? - Boing Boing ...Hmm, don't think the above explanation is quite right, I think the woodworking is explained correctly though. I think it's all filmed in one cut. I suspect there's batteries and a pump hidden in the base. There's a suspicious looking slot in the box where he pours the water in. I would guess half the water pours into the base section and is pumped up to the top section and is timed to look correct. The bottom section will probably have a method of recovering the water and feeding it back to box under the wheel to recycle it. Very impressive stuff.