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61Fertilizer — Tennessee Valley Authority: Results of Fertilizer demonstration 1942 …
62Oil shale geology — Main article: Oil shale Outcrop of Ordovician kukersite oil shale, northern Estonia. Oil shale geology is a branch of geologic sciences which studies the formation and composition of …
63Sugarcane — Taxobox name = Sugarcane image width = 250px image caption = Cut sugar cane regnum = Plantae divisio = Magnoliophyta classis = Liliopsida ordo = Poales familia = Poaceae genus = Saccharum genus authority = L. subdivision ranks = Species… …
64Woodchips — are a solid fuel made from woody biomass. They are made in the process of woodchipping with a woodchipper. They are used primarily as a heating fuel in a few commercial institutions, such as schools, and in some industrial plants for generating… …
65air-cushion machine — ▪ vehicle Introduction also called ground effect machine, or hovercraft, any of the machines characterized by movement in which a significant portion of the weight is supported by forces arising from air pressures developed around the… …
66Concrete — This article is about the construction material. For other uses, see Concrete (disambiguation). Outer view of the Roman Pantheon, still the largest unreinforced solid concrete dome.[1] …
67United States Constitution — P …
68Boletus edulis — Boletus edulis …
69Microburst — Illustration of a microburst. Note the downward motion of the air until it hits ground level. It then spreads outward in all directions. The wind regime in a microburst is opposite to that of a tornado …
70Air conditioning — The term air conditioning refers to the cooling and dehumidification of indoor air for thermal comfort. In a broader sense, the term can refer to any form of cooling, heating, ventilation or disinfection that modifies the condition of air.… …
