Schauberger
Apart from those who are happy to extract Nature's failed products such as oil, directly from the ground, there are others who make it their life's work, so to speak, to earn their living by meddling in wise Nature's affairs. These species of human being are commonly called chemists, who are known to produce products of fermentation without taking Nature's dynamic processes into account. Without this there is no possibility for reproduction and further development of any kind, because things possessing these properties have come into being through movement, during which differences in temperature arise that initiate intermediate metabolic processes. These then give rise to flow-alternating processes that engender products of organic synthesis, which is what concerns us here. [The Energy Evolution - Harnessing Free Energy from Nature, The Liquefaction of Coal by Means of Cold Flows]

Through the indirectly engendered cooling the density increases, whereby the frictional pressure is intensified by the mechanically-induced increase in velocity. The arrangement of the guide-vanes causes a spiral circumvolution, so that the bipolar ingredients, which rub against one another flow all the faster as their volume is reduced by the constant abrasion. Apart from the circumfluent motion another form of motion is also active which causes the bodies of the ingredients to swirl about their own axes and ensures their abrasion on all sides. [The Energy Evolution - Harnessing Free Energy from Nature, The Liquefaction of Coal by Means of Cold Flows]