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Clark, Alvan

(Encyclopedia)Clark, Alvan, 1804–87, American astronomer and maker of astronomical lenses, b. Ashfield, Mass. In 1846 the firm of Alvan Clark & Sons was established at Cambridgeport, Mass.; it became famous a...

São João de Meriti

(Encyclopedia)São João de Meriti souN zhwouN ᵺĭ mərēˈtĭ, də mĭrētēˈ [key], city (1990 est. pop. 508,200), Rio de Janeiro state, SE Brazil, a residential suburb northwest of the city of Rio de Janeiro....

Crane, Hart

(Encyclopedia)Crane, Hart (Harold Hart Crane), 1899–1932, American poet, b. Garrettsville, Ohio. He published only two volumes of poetry during his lifetime, but those works established Crane as one of the most o...

Ipswich, town, United States

(Encyclopedia)Ipswich, town (2020 pop. 13,785), Essex co., NE Mass., on the Ipswich River and Ipswich Bay; inc. 1634. Ipswich clams are found there. Tourism and the p...

Rio Treaty

(Encyclopedia)Rio Treaty (Inter-American Treaty of Reciprocal Assistance), signed Sept. 2, 1947, and originally ratified by all 21 American republics. Under the treaty, an armed attack or threat of aggression again...

protection

(Encyclopedia)protection, practice of regulating imports and exports with the purpose of shielding domestic industries from foreign competition. To accomplish that end, certain imports may be excluded entirely, imp...

Agua Azul

(Encyclopedia)Agua Azul, series of waterfalls and pools on the Xanil River in Chiapas state, S Mexico, SW of Palenque in the Cascadas de Agua Azul Natural Park. The waters of the Agua Azul are noted for their brill...

Niagara Falls, waterfall, United States and Canada

(Encyclopedia)Niagara Falls, in the Niagara River, W N.Y. and S Ont., Canada; one of the most famous spectacles in North America. The falls are on the international line between the cities of Niagara Falls, N.Y., a...

El Niño–Southern Oscillation

(Encyclopedia)El Niño–Southern Oscillation (ENSO) ĕl nēnˈyō [key], large-scale climatic fluctuation of the tropical Pacific Ocean and the overlying atmosphere. The El Niño [Span.,=the child] is the South Am...

gecko

(Encyclopedia)gecko gĕkˈō [key], small or medium-sized lizard of the family Gekkonidae. Some 1,500 species are distributed throughout the warm regions of the world, mostly in the Old World. Despite folklore to t...
 

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