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evolution

(Encyclopedia)CE5 Plant and animal evolution [Modified from Alfred Gunderson in Brooklyn Botanic Garden Leaflets, Ser. 18, No. 4 (1930); used by permission.] evolution, concept that embodies the belief that ex...

poll

(Encyclopedia)poll, technique for ascertaining the attitudes or opinions of the total, or some segment of the total, population on given questions, usually on political, economic, and social conditions. Sampling ...

human evolution

(Encyclopedia)human evolution, theory of the origins of the human species, Homo sapiens. Modern understanding of human origins is derived largely from the findings of paleontology, anthropology, and genetics, and i...

stellar evolution

(Encyclopedia)CE5 The above Hertzsprung-Russell (H-R) diagram shows the track of stellar evolution for a typical star. After spending much of its life evolving toward or along the main sequence, the star becomes...

poll tax

(Encyclopedia)poll tax, a capital tax levied equally on every adult in the community. Although no longer a significant source of revenue for any major country, the poll tax did provide large sums for many governmen...

public opinion poll

(Encyclopedia)public opinion poll: see poll.

Red Poll cattle

(Encyclopedia)Red Poll cattle pōl [key], breed of polled (hornless) cattle, originated in England c.1846. They are a medium-sized, hardy breed of cattle, light red to very dark red in color, and are raised for bot...

Gallup, George Horace

(Encyclopedia)Gallup, George Horace, 1901–84, American public opinion statistician, originator of the Gallup poll, b. Jefferson, Iowa. After teaching journalism at Drake Univ. (1929–31) and at Northwestern Univ...

market research

(Encyclopedia)market research, organized use of sample surveys, polls, focus groups, and other techniques to study market characteristics (e.g., ages and incomes of consumers; consumer attitudes) and improve the ef...

Sheppard, Jack

(Encyclopedia)Sheppard, Jack, 1702–24, English criminal. Raised in a workhouse, he ran away with Bess Lyon, known as Edgeworth Bess, who, with another girl known as Poll Maggott, incited him to a short but specta...