Columbia Encyclopedia

Search results

110 results found

Bethmann-Hollweg, Theobald von

(Encyclopedia)Bethmann-Hollweg, Theobald von tāˈōbält fən bātˈmän-hôlˈvāk [key], 1856–1921, German chancellor. A career civil servant, he became minister of the interior (1905) and secretary of state (...

Arctic Ocean

(Encyclopedia)Arctic Ocean, the smallest ocean, c.5,400,000 sq mi (13,986,000 sq km), located entirely within the Arctic Circle and occupying the region around the North Pole. The Arctic basin was almost wholly u...

echo sounder

(Encyclopedia)echo sounder, an older instrumentation system for indirectly determining ocean floor depth. Echo sounding is based on the principle that water is an excellent medium for the transmission of sound wave...

Kelvin, William Thomson, 1st Baron

(Encyclopedia)Kelvin, William Thomson, 1st Baron, 1824–1907, British mathematician and physicist, b. Belfast. He was professor of natural philosophy at the Univ. of Glasgow (1846–99). He is known especially for...

Paris, Declaration of

(Encyclopedia)Paris, Declaration of, 1856, agreement concerning the rules of maritime warfare, issued at the Congress of Paris. It was the first major attempt to codify the international law of the sea. Conflicting...

Bakassi

(Encyclopedia)Bakassi bäkäˈsē [key], peninsula, c.400 sq mi (1,000 sq km), E Cameroon, on the Cameroon-Nigeria border, at the SE end of the Gulf of Guinea. The swampy peninsula and associated small islands are ...

Murmansk

(Encyclopedia)Murmansk mo͝ormänskˈ [key], city (1989 pop. 468,000), capital of Murmansk region, NW European Russia, on the Kola Gulf of the Barents Sea. It is the terminus of the Northeast Passage and the world'...

Lyme disease

(Encyclopedia)Lyme disease or Lyme borreliosis, a nonfatal bacterial infection that causes symptoms ranging from fever and headache to a painful swelling of the joints. The first American case of Lyme's characteris...

guided missile

(Encyclopedia)guided missile, self-propelled, unmanned space or air vehicle carrying an explosive warhead. Its path can be adjusted during flight, either by automatic self-contained controls or remote human control...

landslide

(Encyclopedia)landslide, rapid slipping of a mass of earth or rock from a higher elevation to a lower level under the influence of gravity and water lubrication. More specifically, rockslides are the rapid downhill...