Columbia Encyclopedia

(Encyclopedia) Mixtec mĭsˈtĕk [key], Native American people of Oaxaca, Puebla, and part of Guerrero, SW Mexico, one of the most important groups in Mexico. Although the Mixtec codices constitute the largest colle...

(Encyclopedia) feldspar fĕlˈspär [key], an abundant group of rock-forming minerals which constitute 60% of the earth's crust. Chemically the feldspars are silicates of aluminum, containing sodium, potassium, iron...

(Encyclopedia) Kahn, Louis Isadore , kän [key], 1901–74, American architect, b. Estonia. He and his family moved to Philadelphia in 1905, and he later studied at the Univ. of Pennsylvania. From the 1920s through ...

(Encyclopedia) Harpers Ferry, town (2020 pop. 285), Jefferson co., easternmost W Va., at the confluence of the Shenandoah and Potomac rivers; inc. 1763. The town is a ...

(Encyclopedia) Henan or Honan both: ho͝oˈnänˈ [key], province, c.65,000 sq mi (168,350 sq km), NE China. The capital is ...

(Encyclopedia) Zaragoza sârˌəgōˈsə [key], city (1990 pop. 592,686), capital of Zaragoza prov. and leading city of Aragón, NE Spain, on the Ebro River. An important commercial and communications center, it is ...

(Encyclopedia) sundial, instrument that indicates the time of day by the shadow, cast on a surface marked to show hours or fractions of hours, of an object on which the sun's rays fall. Although any object whose sha...

(Encyclopedia) well, aperture in the earth's surface through which substances in a natural underground reservoir, such as water, gas, oil, salt, and sulfur, can flow or be pumped to the surface. In the United States...

(Encyclopedia) public relations, activities and policies used to create public interest in a person, idea, product, institution, or business establishment. By its nature, public relations is devoted to serving parti...

(Encyclopedia) Tuva Republic or Tyva Republic both: to͞oˈvə, Rus. to͞oväˈ, Tuvan to͞owäˈ [key], constituent republic (1990 est. pop. 366,000), 65,830 sq mi (170,500 sq km), extreme S Siberian Russia, on the...