Schauberger
(c) the fabrication of naturalesquely designed water turbines, pumps, etc. (see figs. 11-13) with about a 90-fold increase in output and performance under otherwise equal conditions through the combination of both components of motion (pressural and suctional forces in a reactive state) on a common developmental axis. [The Energy Evolution - Harnessing Free Energy from Nature, The Practical Application of Cycloid-Space-Curve-Motion arising from Processes of Cold Oxidation]