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avalanche

(Encyclopedia)avalanche, rapidly descending large mass of snow, ice, soil, rock, or mixtures of these materials, sliding or falling in response to the force of gravity. Avalanches, which are natural forms of erosio...

Tantalus

(Encyclopedia)Tantalus tănˈtələs [key], in Greek mythology, king of Sipylos, son of Zeus and father of Pelops and Niobe. He was admitted to the society of the gods, but his abominable behavior aroused their ang...

Bryce Canyon National Park

(Encyclopedia)Bryce Canyon National Park, 35,835 acres (14,513 hectares), SW Utah; est. 1924. The Pink Cliffs of the Paunsaugunt Plateau, c.2,000 ft (610 m) high, were formed by water, frost, and wind action on alt...

whirlpool

(Encyclopedia)whirlpool, revolving current in an ocean, river, or lake. It may be caused by the configuration of the shore, irregularities in the bottom of the body of water, the meeting of opposing currents or tid...

pollination

(Encyclopedia)pollination, transfer of pollen from the male reproductive organ (stamen or staminate cone) to the female reproductive organ (pistil or pistillate cone) of the same or of another flower or cone. Polli...

energy, sources of

(Encyclopedia)energy, sources of, origins of the power used for transportation, for heat and light in dwelling and working areas, and for the manufacture of goods of all kinds, among other applications. The develop...

Alentejo

(Encyclopedia)Alentejo əlāntāˈzho͝o [key], historic province, SE Portugal, now divided into Altro (Upper) Alentejo (4,888 sq mi/12,660 sq km) and Baixo (Lower) Alentejo (5,318 sq mi/13,774 sq km). The capital ...

cornet

(Encyclopedia)CE5 Cornet cornet, brass wind musical instrument, created in France about 1830 by adding valves to the post horn. It is usually in B flat and is the same size as the B flat trumpet, but has a more...

Roethke, Theodore

(Encyclopedia)Roethke, Theodore rĕtˈkə [key], 1908–63, American poet, b. Saginaw, Mich., educated at the Univ. of Michigan and Harvard. A poet of the Midwest, Roethke combined a love of the land with his visio...

panpipes

(Encyclopedia)CE5 Panpipes panpipes, Pandean pipes sĭrˈĭngks [key], musical wind instrument, consisting of graduated tubes closed at one end and fastened together. The player holds the instrument vertically...