Schauberger
[14] See explanatory figures Nos. 10 and 11 on p. 4 of The Water Wizard, Vol. I of the Ecotechnology series. — Ed. [The Energy Evolution - Harnessing Free Energy from Nature, The Liquefaction of Coal by Means of Cold Flows]
Schauberger
[14] See explanatory figures Nos. 10 and 11 on p. 4 of The Water Wizard, Vol. I of the Ecotechnology series. — Ed. [The Energy Evolution - Harnessing Free Energy from Nature, The Liquefaction of Coal by Means of Cold Flows]