Columbia Encyclopedia

Search results

287 results found

Van Allen radiation belts

(Encyclopedia)CE5 Van Allen radiation belts: The solar wind, a stream of protons, electrons, and ions coming from the sun, gives the belts their asymmetrical shape. Van Allen radiation belts, belts of radiation...

furnace

(Encyclopedia)furnace, enclosed space for the burning of fuel. There are many kinds of furnaces, the type depending upon the fuel and the use to which the heat produced within it is put. Most familiar are the furna...

Ganges

(Encyclopedia)Ganges gŭngˈgä [key], river, c.1,560 mi (2,510 km) long, rising in the Gangotri glacier in the Himalayas in Uttarakhand state, India, and flowing generally southeast through NE India across a vast ...

Indus

(Encyclopedia)Indus ĭnˈdəs [key], chief river of Pakistan, c.1,900 mi (3,060 km) long, rising in the Kailas range in the Tibetan Himalayas, and flowing NW across Ladakh, India, then SW through Pakistan to the Ar...

solar wind

(Encyclopedia)solar wind, stream of ionized hydrogen—protons and electrons—with an 8% component of helium ions and trace amounts of heavier ions that radiates outward from the sun at high speeds. The continuous...

Faulkner, William

(Encyclopedia)Faulkner, William, 1897–1962, American novelist, b. New Albany, Miss., one of the great American writers of the 20th cent. Born into an old Southern family named Falkner, he changed the spelling of ...

Trollope, Anthony

(Encyclopedia)Trollope, Anthony trŏlˈəp [key], 1815–82, one of the great English novelists. After spending seven unhappy years in London as a clerk in the general post office, he transferred (1841) to Ireland ...

wall

(Encyclopedia)wall, in architecture, protective, enclosing, or dividing vertical structure. Its thickness is determined by the material, height, and stress. It may be of studding and lath, either boarded or plaster...

diesel engine

(Encyclopedia)diesel engine, type of internal-combustion engine invented by the German engineer Rudolf Diesel and patented by him in 1892. Although his engine was designed to use coal dust as fuel, the diesel engin...

air-cushion vehicle

(Encyclopedia)CE5 Air-cushion vehicle: In vehicles modified with a trunk or skirt (A), the rate of leakage is reduced and less power is needed to maintain the cushion. Vehicles designed to travel over deep water...