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Lipscomb, William Nunn, Jr.

(Encyclopedia)Lipscomb, William Nunn, Jr. lĭpˈskəm [key], 1919–2011, American physical chemist, b. Cleveland, Ph.D. California Institute of Technology, 1946. A professor of chemistry at the Univ. of Minnesota ...

Roscoe, Sir Henry Enfield

(Encyclopedia)Roscoe, Sir Henry Enfield rŏsˈkō [key], 1833–1915, English chemist. He was professor (1857–87) at Owens College, Manchester. He is known for his work, with R. W. Bunsen, in photochemistry and f...

ray, in physics

(Encyclopedia)ray, in physics, term denoting the straight line along which light or other form of radiation is propagated from its source. It generally refers to the line of propagation of waves but is also applied...

periwinkle, in zoology

(Encyclopedia)periwinkle, any of a group of marine gastropod mollusks having conical, spiral shells. Periwinkles feed on algae and seaweed. They are found at the water's edge; out of water, they resist drying by cl...

eclecticism, in philosophy

(Encyclopedia)eclecticism ĭklĕkˈtĭsĭzˌəm [key] [Gr. eklektikos=to choose], in philosophy, the selection of elements from different systems of thought, without regard to possible contradictions between the sy...

Virtanen, Artturi Ilmari

(Encyclopedia)Virtanen, Artturi Ilmari, 1895–1973, Finnish chemist, Ph.D. Univ. of Helsinki, 1918. Virtanen was on the faculty at the Univ. of Helsinki from 1924 until his death in 1973. He was awarded the Nobel ...

Martin, Archer John Porter

(Encyclopedia)Martin, Archer John Porter, 1910–2002, English biochemist, educated at Cambridge. From 1938 to 1946 he carried on chemical research in the laboratories of the Wool Industries Association at Leeds, Y...

columbine, in botany

(Encyclopedia)columbine kŏlˈəmbīn [key], any plant of the genus Aquilegia, temperate-zone perennials of the family Ranunculaceae (buttercup family), popular both as wildflowers and as garden flowers. Columbines...

Debye, Peter Joseph Wilhelm

(Encyclopedia)Debye, Peter Joseph Wilhelm dēbīˈ [key], 1884–1966, American physicist, b. the Netherlands. He was professor at the universities of Zürich, Utrecht, Göttingen, Leipzig, and Berlin. In 1940 he c...

Hinshelwood, Sir Cyril Norman

(Encyclopedia)Hinshelwood, Sir Cyril Norman, 1897–1967, British chemist, D.Sc. Oxford, 1924. In 1937 Hinshelwood became a professor at Oxford, where he remained until his retirement in 1964. He shared the 1956 No...