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mantle

(Encyclopedia)mantle, portion of the earth's interior lying beneath the crust and above the core. No direct observation of the mantle, or its upper boundary, has been made; its boundaries have been determined solel...

Chateaubriand, François René, vicomte de

(Encyclopedia)Chateaubriand, François René, vicomte de fräNswäˈ rənāˈ vēkôNtˈ də shätōbrēäNˈ [key], 1768–1848, French writer. Chateaubriand was a founder of romanticism in French literature. Of n...

Daudet, Alphonse

(Encyclopedia)Daudet, Alphonse älfôNsˈ dōdāˈ [key], 1840–97, French writer, b. Nîmes (Provence). Daudet made his mark with gentle naturalistic stories and novels portraying French life both in the province...

digital radio

(Encyclopedia)digital radio, audio broadcasting in which an analog audio signal is converted into a digital signal before being transmitted; also known as digital audio broadcasting (DAB) and high-definition radio....

kinetic-molecular theory of gases

(Encyclopedia)kinetic-molecular theory of gases, physical theory that explains the behavior of gases on the basis of the following assumptions: (1) Any gas is composed of a very large number of very tiny particles ...

Brodsky, Joseph

(Encyclopedia)Brodsky, Joseph (Iosif Aleksandrovich Brodsky) brätˈskē, brädˈ–, Rus. yôsˈyĭf əlyĭksänˈdrəvyĭch brôtˈskē [key], 1940–96, Russian-American poet, b. Leningrad (St. Petersburg). A di...

Browning, Elizabeth Barrett

(Encyclopedia)Browning, Elizabeth Barrett, 1806–61, English poet, b. Durham. A delicate and precocious child, she spent a great part of her early life in a state of semi-invalidism. She read voraciously—philoso...

Valéry, Paul

(Encyclopedia)Valéry, Paul pōl välārēˈ [key], 1871–1945, French poet and critic. A follower of the symbolists, Valéry was one of the greatest French poets of the 20th cent. He was encouraged by Pierry Loü...

percussion instrument

(Encyclopedia)percussion instrument, any instrument that produces musical sound when its surface is struck with an implement (such as a mallet, stick, or disk) or with the hand. Perhaps the most universally familia...

shock

(Encyclopedia)shock, any condition in which the circulatory system is unable to provide adequate circulation to the body tissues, also called circulatory failure or circulatory collapse. Shock results in the slowin...
 

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