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complexity

(Encyclopedia)complexity, in science, field of study devoted to the process of self-organization. The basic concept of complexity is that all things tend to organize themselves into patterns, e.g., ant colonies, im...

Gell-Mann, Murray

(Encyclopedia)Gell-Mann, Murray gĕlˈ-män [key], 1929–2019, American theoretical physicist, b. New York City, grad. Yale 1948, Ph.D. Massachusetts Institute of Technology, 1951. He was associated with the Univ....

Bogotá

(Encyclopedia)Bogotá bōgōtäˈ [key], city (2021 metro area est. pop. 11,167,000), central Colombia, cap...

Pueblo, indigenous people of North America

(Encyclopedia)Pueblo, name given by the Spanish to the sedentary Native Americans who lived in stone or adobe communal houses in what is now the SW United States. The term pueblo is also used for the villages occup...

Santa Cruz, Álvaro de Bazán, marqués de

(Encyclopedia)Santa Cruz, Álvaro de Bazán, marqués de älˈvärō ᵺā bäthänˈ märkāsˈ dā sänˈtä kro͞oth [key], 1526–88, Spanish admiral. He fought in various actions against the Ottomans and disti...

Campbell, city, United States

(Encyclopedia)Campbell, city (2020 pop. 43,959), Santa Clara co., W Calif., in the fertile Santa Clara valley; founded 1885, inc. 1952. The city's economy, formerly t...

pentlandite

(Encyclopedia)pentlandite pĕntˈləndīt [key], yellowish-bronze, opaque mineral, a sulfide of iron and nickel, (Fe,Ni)9S8. It is found in masses nearly always associated with the iron sulfide pyrrhotite. The larg...

wolframite

(Encyclopedia)wolframite wo͝olˈfrəmītˌ [key], reddish-brown to grayish-black lustrous mineral, a tungstate of iron and manganese, (Fe,Mn)Wo4, occurring in crystals of the monoclinic system. It is the chief ore...

Gaddi, family of Florentine artists

(Encyclopedia)Gaddi gädˈdē [key], celebrated family of Florentine artists. Gaddo Gaddi, c.1260–c.1333, painter and mosaicist, is said by Vasari to have been associated with Cimabue and Giotto. Among the mosaic...

Ferrari, Gaudenzio

(Encyclopedia)Ferrari, Gaudenzio fār-räˈrē [key], c.1480–1546, Italian painter, one of the leading representatives of the Lombard school. He worked chiefly in the churches of Varallo (N Piedmont), Vercelli, ...