Schauberger
It is known that a good, light and palatable old wine comes into being through fermentation in a cellar. This is none other than a form of digestive process in which cycloid-space-curve-motion naturally plays a part - a motion the naturalistic doctor calls the 'life-creating spiral' and the biotechnician 'double spiral wave motion' (viz. the cycloid movement of the blood, to which we owe the build-up of mental essences, the creation of thoughts, the formation of our bones and flesh, reproductive embryos and of course, the possibility of overcoming our own physical weight). [The Energy Evolution - Harnessing Free Energy from Nature, New Forms of Motion and Energy]
See Also
double screw-form wave motion
double-spiral pipe
double spiral
double vortex
spiral
vortex