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Bill and Melinda Gates Foundation

(Encyclopedia)Bill and Melinda Gates Foundation, philanthropic institution founded in 1994 by Microsoft chairman Bill Gates and his wife, Melinda, to improve the lives of the poor throughout the world, primarily th...

age grade and age set

(Encyclopedia)age grade and age set, differentiation of social role based on age, commonly found in small-scale societies of North America and East Africa. Age sets are a type of sodality (nonresidential groups tha...

centripetal force and centrifugal force

(Encyclopedia)CE5 Centripetal and centrifugal forces: When a ball is swung in a circle at the end of a string, centripetal and centrifugal forces act as shown above. centripetal force and centrifugal force, act...

Brentwood, city and district, England

(Encyclopedia)Brentwood, city and district, Essex, SE England. Brentwood is mainly residential but produces some agricultural equipment, film, and prefabricated concr...

Camp Fire Boys and Girls

(Encyclopedia)Camp Fire Boys and Girls, American organization for boys and girls from birth to age 21, originally the Camp Fire Girls, for girls 6 to 18 years old. It was founded (1910) by Luther Halsey Gulick (186...

Cardamoms, mountains, Thailand and Cambodia

(Encyclopedia)Cardamoms kärˈdəməmz [key], Thai Banthat, Khmer Kravanh, mountain group extending c.100 mi (160 km) along the Thai-Cambodian border, E of Chanthaburi, SE Thailand. The mountains receive monsoon ra...

Carlos, Spanish and Portuguese kings

(Encyclopedia)Carlos. For Spanish and Portuguese kings thus named, use Charles.

vertical takeoff and landing aircraft

(Encyclopedia)vertical takeoff and landing aircraft (VTOL), craft capable of rising and descending vertically from and to the ground, thus requiring no runway. While a balloon or an airship has obvious VTOL capabil...

Vienna, city and province, Austria

(Encyclopedia)Vienna vēĕnˈə [key], Ger. Wien, city and province (1991 pop. 1,539,848), 160 sq mi (414 sq km), capital and largest city of Austria and administrative seat of Lower Austria, NE Austria, on the Dan...

Ursa Major and Ursa Minor

(Encyclopedia)Ursa Major ûrˈsə [key] and Ursa Minor [Lat.,=the great bear; the little bear], two conspicuous northern constellations. Known to many peoples from ancient times, these constellations have had vario...