Columbia Encyclopedia

Search results

500 results found

Molise

(Encyclopedia)Molise mōlēˈzā [key], region (1991 pop. 330,900), 1,714 sq mi (4,439 sq km), S central Italy, bordering on the Adriatic Sea in the east. Campobasso is the capital of the region, which is divided i...

Cedar Rapids

(Encyclopedia)Cedar Rapids, city (2020 pop. 137,710), seat of Linn co., E central Iowa, on the Cedar River; inc. as a city 1856. The second largest city in Iowa, it i...

Bayeux tapestry

(Encyclopedia)Bayeux tapestry. This so-called tapestry is in fact an embroidery that chronicles the Norman Conquest of England by William the Conqueror (William I) in 1066. It is a long, narrow strip of coarse line...

Cubango

(Encyclopedia)Cubango ōkəvängˈgō [key], river, c.1,000 mi (1,610 km) long, rising in the highlands of central Angola, W central Africa, and flowing southeast, across the Caprivi Strip, Namibia, to the Okavango...

mining

(Encyclopedia)mining, extraction of solid mineral resources from the earth. These resources include ores, which contain commercially valuable amounts of metals, such as iron and aluminum; precious stones, such as d...

Tanintharyi

(Encyclopedia)Tanintharyi tĕnăsˈərĭm [key], region (1983 pop. 917,628), 21,297 sq mi (55,159 sq km), extreme S Myanmar. Dawei (Tavoy), the capital, and Myeik (Mergui) are the chief towns. A narrow strip of coa...

spring, in mechanics

(Encyclopedia)spring, in mechanics, any of several elastic devices used variously to store and to furnish energy, to absorb shock, to sustain the pressure between contacting surfaces, and to resist tensional or com...

Mazandaran

(Encyclopedia)Mazandaran dĕränˈ [key], province (1991 pop. 3,793,149), c.20,400 sq mi (52,840 sq km), N Iran, bordering the Caspian Sea in the north. Sari is the capital; other cities include Babol, Amul, and Go...

digital-to-analog conversion

(Encyclopedia)digital-to-analog or D/A conversion, the process of changing discrete digital data into a continuously varying signal in relation to a standard or reference. There are two types of converters: electro...

bolometer

(Encyclopedia)bolometer bōlŏmˈətər, bə– [key], instrument for detecting and measuring radiation, e.g., visible light, infrared radiation, and ultraviolet radiation, in amounts as small as one millionth of a...

Browse by Subject