How does the impossible waterfall model Bashny.Net

known that the laws of physics, water can not flow upwards, but the famous Escher lithograph spodvigla this guy on the creation of such a spatial illusion. And he wants to convince us that everything the way it is - the water flows up! Of course, this is nothing more than a trick, and that's one of the versions, reveals the secrets of this waterfall:
is not so important - pump, or just create a video montage a full sense of the paradoxical movement of the water, it is important that this trick with water again not everyone can.