Columbia Encyclopedia

(Encyclopedia) magnetite măgˈnətīt [key], lustrous black, magnetic mineral, Fe3O4. It occurs in crystals of the cubic system, in masses, and as a loose sand. It is one of the important ores of iron (magnetic iro...

(Encyclopedia) Florence flôrˈəns, flŏrˈ– [key], Ital. Firenze, city (2021 est. metro area pop.709,064...

(Encyclopedia)  CE5 Iowa īˈəwə [key], midwestern state in the N central United States. It is bounded by the Mississippi River, across which lie Wisconsin and Illinois (E); Missouri (S); Nebraska and South Dako...

(Encyclopedia) Tangier tănjērˈ [key], ancient Tingis, city (1994 pop. 497,147), N Morocco, on the Strait of Gibraltar. The city has a busy port and building, fishing, and textiles industries. Tourism is also impo...

(Encyclopedia) Surgeon General, United States, former head of the U.S. Public Health Service, which is responsible for protecting the people's health (see public health). Since a 1986 reorganization, the surgeon gen...

(Encyclopedia) Panama, city (1990 pop. 584,803), central Panama, capital and largest city of Panama, on the Gulf of Panama. Founded in 1519 by Pedro Arias de Ávila, the city flourished in early colonial times as th...

(Encyclopedia) North Platte plăt [key], city (1990 pop. 22,605), seat of Lincoln co., W central Nebr., at the confluence of the North Platte and South Platte rivers; inc. 1873. It is a processing and shipping point...

(Encyclopedia) United States Military Academy, at West Point, N.Y.; for training young men and women to be officers in the U.S. army; founded and opened in 1802. The original act provided that the Corps of Engineers...

(Encyclopedia) United States National Science Foundation: see National Science Foundation. ...

(Encyclopedia) Milan mĭlănˈ, –änˈ [key], Ital. Milano, Lat. Mediolanum, city (1991 pop. 1,369,231), capital of Lombardy and of Milan prov., N Italy, at the heart of the Po basin. Because of its strategic posi...