Search

Search results

Displaying 171 - 180

Vásquez, Horacio

(Encyclopedia) Vásquez, HoracioVásquez, Horacioōräˈsyō väˈskās [key], 1860–1936, president of the Dominican Republic (1899–1903, 1903–7, 1924–30). A dominating figure in the nation, even when out of…

Wallon, Henri Alexandre

(Encyclopedia) Wallon, Henri AlexandreWallon, Henri AlexandreäNrēˈ älĕksäNˈdrə välôNˈ [key], 1812–1904, French historian and politician. He was elected (1871) to the national assembly, and it was his…

Walton, Izaak

(Encyclopedia) Walton, Izaak, 1593–1683, English writer. He wrote one of the most famous books in the English language, The Compleat Angler; or, the Contemplative Man's Recreation. The first edition…

vacuum cleaner

(Encyclopedia) vacuum cleaner, mechanical device using a draft of air to remove dust, loose dirt, or other particulate matter from dry surfaces. It is especially useful on highly textured surfaces,…

Plutarch

(Encyclopedia) PlutarchPlutarchpl&oomacr;ˈtärk [key], a.d. 46?–c.a.d. 120, Greek essayist and biographer, b. Chaeronea, Boeotia. He traveled in Egypt and Italy, visited Rome (where he lectured on…

megapode

(Encyclopedia) megapodemegapodemĕgˈəpōdˌ [key], common name for large, stout-bodied, long-tailed, terrestrial, nonmigratory birds comprising six genera in the family Megapodiidae. Members of the…

photoelectric effect

(Encyclopedia) photoelectric effect, emission of electrons by substances, especially metals, when light falls on their surfaces. The effect was discovered by H. R. Hertz in 1887. The failure of the…

connective tissue

(Encyclopedia) connective tissue, supportive tissue widely distributed in the body, characterized by large amounts of intercellular substance and relatively few cells. The intercellular material, or…

chromosome

(Encyclopedia) chromosomechromosomekrōˈməsōmˌ [key], structural carrier of hereditary characteristics, found in the nucleus of every cell and so named for its readiness to absorb dyes. The term…

capacitor

(Encyclopedia) capacitor or condenser, device for the storage of electric charge. Simple capacitors consist of two plates made of an electrically conducting material (e.g., a metal) and separated by…