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sleet

(Encyclopedia)sleet, precipitation of small, partially melted grains of ice. As raindrops fall from clouds, they pass through layers of air at different temperatures. If they pass through a layer with a temperature...

streamline

(Encyclopedia)streamline, path of a fluid flowing steadily and without appreciable turbulence. A body is said to be streamlined if its shape offers the least possible resistance to a current of air, water, or other...

calcination

(Encyclopedia)calcination kălˌsənāˈshən [key], in metallurgy, process of heating solid material to drive off volatile chemically combined components, e.g., carbon dioxide. It is sometimes a step in the extrac...

steel

(Encyclopedia)steel, alloy of iron, carbon, and small proportions of other elements. Iron contains impurities in the form of silicon, phosphorus, sulfur, and manganese; steelmaking involves the removal of these imp...

brake, in technology

(Encyclopedia)CE5 Shoe brake CE5 Disk brake brake, in technology, device to slow or stop the motion of a mechanism or vehicle. The vacuum brake system, or vacuum brake, depends upon the use of a vacuum to ...

liquefied petroleum gas

(Encyclopedia)liquefied petroleum gas or LPG, mixture of gases, chiefly propane and butane, produced commercially from petroleum and stored under pressure to keep it in a liquid state. The boiling point of liquefie...

Merrill, Robert

(Encyclopedia)Merrill, Robert, 1917–2004, American baritone, b. Brooklyn, N.Y., as Moishe Miller. In 1945 he won the Metropolitan Opera's Auditions of the Air and in the same year made his debut as Germont in Ver...

Guilin

(Encyclopedia)Guilin or Kweilin both: gwā-lĭnˈ [key], city (1994 est. pop. 707,200), N Guangxi Zhuang Autonomous Region, S China, on the Li River. It is a transportation center, with connections by rail, river, ...

Glasgow, city, United States

(Encyclopedia)Glasgow. <1> City (2020 pop. 15,014), seat of Barren co., S central Ky.; inc. 1799. It is an agricultural trade center that relies on dairy, ...

Glauber's salt

(Encyclopedia)Glauber's salt, common name for sodium sulfate decahydrate, Na2SO4·10H2O; it occurs as white or colorless monoclinic crystals. Upon exposure to fairly dry air it effloresces, forming powdery anhydrou...