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Thirlmere
(Encyclopedia) Thirlmere, lake, c.3 mi (5 km) long, in the Lake District, Cumbria, NW England, near Keswick. In 1894, through the construction of a high dam (which raised the water level c.50 ft/15 m…aquaculture
(Encyclopedia) aquaculture, the raising and harvesting of fresh- and saltwater plants and animals. The most economically important form of aquaculture is fish farming, an industry that accounts for…grog
(Encyclopedia) grog, originally a mixture of rum and water. It is named after Admiral Grogram Vernon, who first ordered the dilution of the British Royal Navy's daily rum ration. The term is now…Hume Reservoir
(Encyclopedia) Hume Reservoir, c.70 sq mi (180 sq km), on the Murray River, near Albury-Wodonga, on the Victoria–New South Wales border, Australia. It is the largest water-storage area in Australia.…Camenae
(Encyclopedia) CamenaeCamenaekəmēˈnē [key], in Roman religion and mythology, water nymphs gifted in prophecy. At Rome they had a sacred spring from which the vestals drew water for their rites. In…silver chloride
(Encyclopedia) silver chloride, chemical compound, AgCl, a white cubic crystalline solid. It is nearly insoluble in water but is soluble in a water solution of ammonia, potassium cyanide, or sodium…specific gravity
(Encyclopedia) specific gravity, ratio of the weight of a given volume of a substance to the weight of an equal volume of some reference substance, or, equivalently, the ratio of the masses of equal…Archimedes' principle
(Encyclopedia) Archimedes' principle, principle that states that a body immersed in a fluid is buoyed up by a force equal to the weight of the displaced fluid. The principle applies to both floating…shaft sinking
(Encyclopedia) shaft sinking, excavation from the surface of an opening in the earth. Shafts, which are generally vertical, are usually distinguished from tunnels, which are horizontal. Little…fire fighting
(Encyclopedia) fire fighting, the use of strategy, personnel, and apparatus to extinguish, to confine, or to escape from fire. Ancient Rome is known to have had a fire department consisting by the…Trending
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