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Jack the Ripper

(Encyclopedia) Jack the Ripper, name given to an unidentified late-19th-century murderer in London, England; also known as the Whitechapel Murderer and Leather Apron. From Aug. to Nov., 1888, he was…

electrochemistry

(Encyclopedia) electrochemistry, science dealing with the relationship between electricity and chemical changes. Of principal interest are the reactions that take place between electrodes and the…

Horney, Karen

(Encyclopedia) Horney, Karen, 1885–1952, American psychiatrist, b. Germany, M.D. Univ. of Berlin, 1913. She married Oscar Horney in 1909. Prior to her arrival (1932) in the United States, she was…

personal watercraft

(Encyclopedia) personal watercraft (PWC), a lightweight vessel usually less than 16 ft (5 m) long that uses an inboard water jet pump, powered by an internal-combustion engine, as its primary source…

snuff

(Encyclopedia) snuff, preparation of pulverized tobacco used by sniffing it into the nostrils, chewing it, or placing it between the gums and the cheek. The blended tobacco from which it is made is…

ephors

(Encyclopedia) ephorsephorsĕfˈərz [key] [Gr.,=overseers], in ancient Greece, magistrates in several Dorian states. In Sparta they comprised an executive, legislative, and judicial board of five…

Albert I, king of the Belgians

(Encyclopedia) Albert I, 1875–1934, king of the Belgians (1909–34), nephew and successor of Leopold II. He married (1900) Elizabeth, a Bavarian princess. In World War I his heroic resistance (1914)…

Steward, Julian Haynes

(Encyclopedia) Steward, Julian Haynes, 1902–72, American anthropologist, b. Washington, D.C., grad. Cornell, 1925, Ph.D. Univ. of California, 1929. He taught at the Univ. of Michigan (1928–30),…

paleography

(Encyclopedia) paleographypaleographypālēŏgˈrəfē [key] [Gr.,=early writing], term generally meaning all study and interpretation of old ways of recording language. In a narrower sense, it excludes…

acculturation

(Encyclopedia) acculturation, culture changes resulting from contact among various societies over time. Contact may have distinct results, such as the borrowing of certain traits by one culture from…