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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...

Evenki Autonomous Area

(Encyclopedia)Evenki Autonomous Area ĕvyĕnˈkē [key], former administrative division, 287,645 sq mi (745,000 sq km), N ...

reflection

(Encyclopedia)CE5 Image formation by curved mirrors and lenses reflection, return of a wave from a surface that it strikes into the medium through which it has traveled. The general principles governing the ref...

Pu Yi

(Encyclopedia)Pu Yi po͞o yē [key] or Henry Pu-yi, Manchu Aisin Gioro, 1906–67, last emperor (1908–12) of China, under the reign name Hsuan T'ung. After his abdication, the new republican government granted hi...

Mayo, Henry Thomas

(Encyclopedia)Mayo, Henry Thomas, 1856–1937, American naval officer, b. Burlington, Vt. In 1913 he became commander of the Atlantic Fleet. At Tampico in 1914 he precipitated an international incident by demanding...

Ferguson

(Encyclopedia)Ferguson, city (2020 pop. 20,359), St. Louis co., E Mo., a suburb of St. Louis; inc. 1894. It is primarily residential. In Aug. 2014, the shooting of an...

polarization of light

(Encyclopedia)polarization of light, orientation of the vibration pattern of light waves in a singular plane. Unpolarized light can be converted into a single polarized beam by means of the Nicol prism, a device ...

Lope de Rueda

(Encyclopedia)Lope de Rueda lōˈpā dā ro͞oāˈᵺä [key], 1510?–1565, Spanish dramatist. A precursor of the Golden Age of Spanish literature, Rueda was an actor and a manager as well as a playwright. He is s...

Hubbard, Elbert

(Encyclopedia)Hubbard, Elbert, 1856–1915, American author and publisher, b. Bloomington, Ill. He founded (1895) an artist colony in East Aurora, N.Y., and established there the Roycroft Press, emulating William M...

solar constant

(Encyclopedia)solar constant, the average amount of radiant energy received by the earth's atmosphere from the sun; its value is about 2 calories per min incident on each square centimeter of the upper atmosphere. ...