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earth, in geology and astronomy

(Encyclopedia)CE5 A. Cross section of the earth, showing its shells B. Detailed cross section of the crust and upper mantle: The lithosphere consists of the hard rock in the crust and upper mantle, lying above t...

National Radio Astronomy Observatory

(Encyclopedia)National Radio Astronomy Observatory (NRAO), federal observatory for radio astronomy, founded in 1956 and operated under contract with the National Science Foundation by Associated Universities, Inc.,...

atlas, in geography

(Encyclopedia)atlas, in geography, collection of maps or charts. It usually includes data on various features of a country, e.g., its topography, natural resources, climate, and population, as well as its agricultu...

Hestia

(Encyclopedia)Hestia hĕsˈtēə [key], in Greek religion and mythology, goddess of the hearth; daughter of Kronos and Rhea. Both public and private worship of Hestia were widespread; she represented personal and c...

Tivoli

(Encyclopedia)Tivoli tēˈvōlē [key], Lat. Tibur, city (1991 pop. 52,372), in Latium, central Italy, on the Aniene River. An important tourist center, the city is beautifully situated on a terrace dominating near...

In

(Encyclopedia)In, symbol for the element indium. ...

frieze

(Encyclopedia)frieze, in architecture, the member of an entablature between the architrave and the cornice or any horizontal band used for decorative purposes. In the first type the Doric frieze alternates the meto...

vestal

(Encyclopedia)vestal vĕsˈtəl [key], in Roman religion, priestess of Vesta. The vestals were first two, then four, then six in number. While still little girls, they were chosen from prominent Roman families to s...

Weelkes, Thomas

(Encyclopedia)Weelkes, Thomas, c.1575–1623, English composer. His four books of madrigals (1597–1600) mark Weelkes as one of the great English madrigalists. His music is remarkable for melodic characterization ...

Olbers, Heinrich Wilhelm Matthäus

(Encyclopedia)Olbers, Heinrich Wilhelm Matthäus hīnˈrĭkh vĭlˈhĕlm mätĕˈo͝os ôlˈbərs [key], 1758–1840, German astronomer and physician. He originated (1797) the first satisfactory method for calculat...