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Missouri, river, United States

(Encyclopedia)Missouri, river, c.2,565 mi (4,130 km) long (including its Jefferson-Beaverhead-Red Rock headstream), the longest river of the United States and the principal tributary of the Mississippi River. The l...

space shuttle

(Encyclopedia)space shuttle, reusable U.S. space vehicle (1981–2011). Developed by the National Aeronautics and Space Administration (NASA) and officially known as the Space Transportation System (STS), it was th...

exploration

(Encyclopedia)exploration, travel to a part of the earth that is relatively unknown to the traveler's culture, historically often motivated by a desire for colonization, conquest, or trade. See also space explorati...

nucleus, in physics

(Encyclopedia)nucleus, in physics, the extremely dense central core of an atom. Following the discovery of radioactivity by A. H. Becquerel in 1896, Ernest Rutherford identified two types of radiation given off b...

Declaration of Independence

(Encyclopedia)Declaration of Independence, full and formal declaration adopted July 4, 1776, by representatives of the Thirteen Colonies in North America announcing the separation of those colonies from Great Brita...

garden

(Encyclopedia)garden, land set aside for the cultivation of flowers, herbs, vegetables, or small fruits, for either utility or ornament. Gardens range in size from window boxes and small dooryard plots to the publi...

Visigoths

(Encyclopedia)Visigoths (West Goths), division of the Goths, one of the most important groups of Germans. Having settled in the region W of the Black Sea in the 3d cent. a.d., the Goths soon split into two division...

organ

(Encyclopedia)CE5 Organ organ, a musical wind instrument in which sound is produced by one or more sets of pipes controlled by a keyboard, each pipe producing only one pitch by means of a mechanically produced ...

little magazine

(Encyclopedia)little magazine, term used to designate certain magazines that have as their purpose the publication of art, literature, or social theory by comparatively little-known writers. The little-magazine m...

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