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competition, in economics

(Encyclopedia)competition, in economics, rivalry in supplying or acquiring an economic service or good. Sellers compete with other sellers, and buyers with other buyers. In its perfect form, there is competition am...

nucleosynthesis

(Encyclopedia)nucleosynthesis or nucleogenesis, in astronomy, production of all the chemical elements from the simplest element, hydrogen, by thermonuclear reactions within stars, supernovas, and in the big bang at...

progressivism

(Encyclopedia)progressivism, in U.S. history, a broadly based reform movement that reached its height early in the 20th cent. In the decades following the Civil War rapid industrialization transformed the United St...

solar system

(Encyclopedia)CE5 Solar system CE5 solar system, the sun and the surrounding planets, natural satellites, dwarf planets, asteroids, meteoroids, and comets that are bound by its gravity. The sun is by far the ...

Leonardo da Vinci

(Encyclopedia)Leonardo da Vinci də vĭnˈchē, Ital. lāōnärˈdō dä vēnˈchē [key], 1452–1519, Italian painter, sculptor, architect, musician, engineer, and scientist, b. near Vinci, a hill village in Tusc...

British Empire

(Encyclopedia)British Empire, overseas territories linked to Great Britain in a variety of constitutional relationships, established over a period of three centuries. The establishment of the empire resulted primar...

Wilson, Woodrow

(Encyclopedia)Wilson, Woodrow (Thomas Woodrow Wilson), 1856–1924, 28th President of the United States (1913–21), b. Staunton, Va. Wilson's writings on history and jurisprudence include Division and Reunion, 1...

Nicaragua

(Encyclopedia)CE5 Nicaragua nĭkäräˈgwä [key], officially Republic of Nicaragua, republic (2015 est. pop. 6,082,000), 49,579 sq mi (128,410 sq km), Central America. Nicaragua is bordered on the north and nor...

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