Schauberger
[18] Actually +3.98°C (+39.164°F). — Ed.
[19] Gallons: Where values in gallons (gal) are referred to in the text, these are US gallons, where 1 US gallon = 3.785 litres, or 1 litre = 0.264 gallons. — Ed.
[20] "At a temperature of 15°C water is 819 times heavier than air at the same temperature. Water vapour, on the other hand, absorbs a 1,700-fold volume of water. With the evaporation of 1 litre of water, about 600 heat units become latent (stored, bound)." Walter Schauberger, Implosion Magazine, No 9, p.26. — Ed.
[21] Unfortunately no details of this patent are available. - Ed. [The Energy Evolution - Harnessing Free Energy from Nature, The Liquefaction of Coal by Means of Cold Flows]