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Afinogenov, Aleksandr Nikolayevich

(Encyclopedia)Afinogenov, Aleksandr Nikolayevich əlyĭksänˈdər nyĭkəlīˈəvĭch əfēˌnəgyĕˈnəf [key], 1904–41, Russian playwright. In his early plays he wrote of labor problems and the dangers of str...

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...

Yamamoto, Isoroku

(Encyclopedia)Yamamoto, Isoroku yämäˈmōtō [key], 1884–1943, Japanese admiral in World War II. He headed the combined fleet in 1941 and was the mastermind behind Japan's attack on Pearl Harbor. After he was ...

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...

barrel organ

(Encyclopedia)barrel organ, mechanical musical instrument requiring nothing but the regular rotary motion of a handle to keep it going. It probably originated at the beginning of the 18th cent., and was once used e...

Cottrell, Leonard Eric

(Encyclopedia)Cottrell, Leonard Eric kŏˈtrəl, kətrĕlˈ [key], 1913–74, British author. He was a commentator, writer, and producer for the British Broadcasting Corporation until 1960, when he resigned to devo...

cough

(Encyclopedia)cough, sudden, forceful expiration of air from the lungs caused by an involuntary contraction of the muscles controlling the process of breathing. The cough is a response to some irritating condition ...