(Encyclopedia) ChrysophytaChrysophytakrəsŏfˈətə [key], phylum (division) of unicellular marine or freshwater organisms of the kingdom Protista consisting of the diatoms (class Bacillariophyceae), the…
(Encyclopedia) RolloRollorŏlˈō [key] or HrolfRollorŏlf [key], c.860–c.932, first duke of Normandy. As leader of the Norman pirates settled at the mouth of the Seine, he attacked (910) Paris and…
(Encyclopedia) Becker, Carl Lotus, 1873–1945, American historian, b. Blackhawk co., Iowa. He taught history at Dartmouth College (1901–2), at the Univ. of Kansas (1902–16), and at Cornell (1917–41).…
(Encyclopedia) proverb, short statement of wisdom or advice that has passed into general use. More homely than aphorisms, proverbs generally refer to common experience and are often expressed in…
(Encyclopedia) psychrometerpsychrometersīkrŏmˈĭtər [key], one of many instruments used for measuring the water vapor content or relative humidity of the atmosphere. It consists of two identical…
(Encyclopedia) Roach, Hal (Harold Eugene Roach, Sr.), 1892–1992, American move producer and director, b. Elmira, N.Y. He entered (1912) the motion-picture industry as an extra, and by 1914 had…
(Encyclopedia) ohmmeterohmmeterōmˈmēˌtər [key], instrument used to measure the electrical resistance of a conductor. It is usually included in a single package with a voltmeter, and often an ammeter…
(Encyclopedia) Warham, WilliamWarham, Williamwôrˈəm [key], 1450?–1532, English churchman, archbishop of Canterbury. He studied at Oxford and became widely known in England for his legal ability, went…
(Encyclopedia) Wouk, HermanWouk, Hermanwōk [key], 1915–2019, American writer, b. New York City. In The Caine Mutiny (1951; Pulitzer Prize), he made the protagonist-antagonist Captain Queeg a popular…
(Encyclopedia) stratification (Lat.,=made in layers), layered structure formed by the deposition of sedimentary rocks. Changes between strata are interpreted as the result of fluctuations in the…
