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Doudna, Jennifer Anne

(Encyclopedia)Doudna, Jennifer Anne, 1964–, American biochemist, b. Washington, D.C., Ph.D. Harvard Medical School, 1989. Doudna was a professor at Yale from 1994 to 2002, when she joined the faculty at the Univ....

Eiffel, Alexandre Gustave

(Encyclopedia)Eiffel, Alexandre Gustave īˈfəl, Fr. älĕksäNˈdrə güstävˈ āfĕlˈ [key], 1832–1923, French engineer. A noted constructor of bridges and viaducts, he also designed the Eiffel Tower and the...

Empson, William

(Encyclopedia)Empson, William, 1906–84, English critic and poet. His Seven Types of Ambiguity (1930), a study of the meanings of poetry, is a classic of modern literary criticism. It was followed by Some Versions...

Karplus, Martin

(Encyclopedia)Karplus, Martin, 1930–, Austrian-American theoretical chemist, b. Vienna, Ph.D. California Institute of Technology, 1953. He has been a professor at Harvard since 1967, studying the electronic struc...

Smalley, Richard Errett

(Encyclopedia)Smalley, Richard Errett, 1943–2005, American chemist, b. Akron, Ohio, Ph.D. Princeton, 1973. He was a professor at Rice Univ. in Houston, Tex., from 1976 until his death in 2005. Smalley shared the ...

butane

(Encyclopedia)butane byo͞oˈtān [key], C4H10, gaseous alkane, a hydrocarbon that is obtained from natural gas or by refining petroleum. It can be liquefied at room temperature by compression. There are two struct...

Butenandt, Adolf Friedrich Johann

(Encyclopedia)Butenandt, Adolf Friedrich Johann, 1903–95, German biochemist, Ph.D. Univ. of Göttingen, 1927. Butenandt held academic posts at the Univ. of Göttingen (1927–33) and the Institute of Technology a...

adjective

(Encyclopedia)adjective, English part of speech, one of the two that refer typically to attributes and together are called modifiers. The other kind of modifier is the adverb. Adjectives and adverbs are functionall...

waveguide

(Encyclopedia)waveguide, device that controls the propagation of an electromagnetic wave so that the wave is forced to follow a path defined by the physical structure of the guide. Waveguides, which are useful chie...

Cary, Joyce

(Encyclopedia)Cary, Joyce (Arthur Joyce Lunel Cary), 1888–1957, English author. From 1910 to 1920 he served as an administrator and soldier in Nigeria. Several of his early works, including Mister Johnson (1939),...