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Ruth

(Encyclopedia)Ruth, book of the Bible. It tells a story, set in the days of the judges, of the fidelity of a Moabite widow (Ruth) to her widowed mother-in-law (Naomi). After the death of her husband in Moab, Ruth r...

Abbot, George

(Encyclopedia)Abbot, George, 1562–1633, archbishop of Canterbury. He was one of the collaborators (from the Univ. of Oxford) on the Authorized Version of the Bible and was an authority on geography. He became arc...

Lamb, Willis Eugene, Jr.

(Encyclopedia)Lamb, Willis Eugene, Jr., 1913–2008, American physicist, b. Los Angeles, Ph.D. Univ. of California, Berkeley, 1938. Lamb was a professor at Columbia (1938–51), Stanford (1951–56), Oxford (1956�...

free radical

(Encyclopedia)free radical, in chemistry, a molecule or atom that contains an unpaired electron but is neither positively nor negatively charged. Free radicals are usually highly reactive and unstable. They are pro...

ammonium group

(Encyclopedia)ammonium group, in chemistry, a positively charged nitrogen atom joined by single bonds to four other atoms or groups. The simplest ammonium group, NH4+, is formed by protonation of ammonia, NH3, e.g....

Gross, David Jonathan

(Encyclopedia)Gross, David Jonathan, 1941–, American particle physicist, b. Washington, D.C., Ph.D. Univ. of California, Berkeley, 1966. Gross was a professor at Princeton from 1969 to 1997, when he joined the fa...

Grubbs, Robert Howard

(Encyclopedia)Grubbs, Robert Howard, 1942–2021, American chemist, b. near Possum Trot, Ky., Univ. of Florida (B.S., 1963; M.S., 1965), Columbia, Univ. (Ph.D, 1968)....

radioactivity

(Encyclopedia)CE5 Effects of a magnetic field on the products of radioactivity CE5 Disintegration series: Radioactive decay of radium-226 into lead-206 radioactivity, spontaneous disintegration or decay of t...

Lamentations

(Encyclopedia)Lamentations, book of the Bible, placed immediately after Jeremiah, to whose author it has been ascribed since ancient times. It was probably composed by several authors. It is a series of five poems ...

Landor, Walter Savage

(Encyclopedia)Landor, Walter Savage, 1775–1864, English poet and essayist, educated at Oxford. After a quarrel with his father, he went to live in Wales, where he wrote the epic poem Gebir (1798). The middle and ...