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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...

Dreyer, Carl Theodor

(Encyclopedia)Dreyer, Carl Theodor kärl tāˈōdôrˌ drīˈər [key], 1889–1968, Danish motion picture director. He began making films in Denmark in 1919. His Passion of Joan of Arc (1928), widely regarded as a...

gyroscope

(Encyclopedia)CE5 Three-frame gyroscope gyroscope jīˈrəskōpˌ [key], symmetrical mass, usually a wheel, mounted so that it can spin about an axis in any direction. When spinning, the gyroscope has special p...

field, in physics

(Encyclopedia)field, in physics, region throughout which a force may be exerted; examples are the gravitational, electric, and magnetic fields that surround, respectively, masses, electric charges, and magnets. The...

Gainsborough, Thomas

(Encyclopedia)Gainsborough, Thomas gānzˈbûrˌō [key], 1727–88, English portrait and landscape painter, b. Sudbury. In 1740 he went to London and became the assistant and pupil of the French engraver Hubert Gr...

antelope

(Encyclopedia)antelope, name applied to any of a large number of hoofed, ruminant mammals of the cattle family (Bovidae), which also includes the bison, buffalo, sheep, and goats. Found in Africa and Eurasia, they ...

broadcasting

(Encyclopedia)broadcasting, transmission, usually using radio frequencies, of sound or images to a large number of radio or television receivers. In the United States the first regularly scheduled radio broadcasts ...

kuvasz

(Encyclopedia)kuvasz (pl. kuvaszok) ko͝ovˈäs, ko͞oˈväs [key], breed of powerful working dog perfected in Hungary over many centuries. The kuvasz may stand as high as 30 in. (76 cm) at the shoulder and weigh u...

Li Dazhao

(Encyclopedia)Li Dazhao lē dä-jou [key], 1888–1927, professor of history and librarian at Beijing Univ., cofounder of the Chinese Communist party with Chen Duxiu. He was the first important Chinese intellectual...

Griffenfeld, Peder Schumacher, Count

(Encyclopedia)Griffenfeld, Peder Schumacher, Count pāˈᵺər sho͞oˈmäkhər, grĭfˈənfĕlt [key], 1635–99, Danish politician. The son of a merchant, he became (1665) secretary to Frederick III. In 1665 Grif...