Columbia Encyclopedia

Search results

500 results found

diving, deep-sea

(Encyclopedia)diving, deep-sea, act of descending into deep water, generally with some form of breathing apparatus, and remaining there for an extended period. It is used in fishing for sponges, coral, and pearls; ...

scuba

(Encyclopedia)scuba: see diving, deep-sea.

cantilever

(Encyclopedia)cantilever kănˈtəlēvər [key], beam supported rigidly at one end to carry a load along the free arm or at the free end. A slanting beam fixed at the base is often used to support the free end, as ...

diver

(Encyclopedia)diver, general term used to refer to many diving birds, e.g., the loon, the grebe, and some ducks, auks, and penguins. ...

petrel

(Encyclopedia)petrel pĕˈtrəl [key], common name given various oceanic birds belonging, like the albatross and the shearwater, to the order known commonly as tube-nosed swimmers. There are two families of petrels...

George Town

(Encyclopedia)George Town, town (1989 pop. 12,921), capital and administrative center of the Cayman Islands, in the West Indies. A major offshore banking and business center, it is the site of several hundred banks...

water beetle

(Encyclopedia)water beetle, name for aquatic beetles of several families. They should not be confused with water bugs, which are true bugs (order Hemiptera). The predaceous diving beetles (family Dytiscidae) are a ...

W and Z particles

(Encyclopedia)W and Z particles, elementary particles that mediate, or carry, the fundamental force associated with weak interactions. The discovery of the W and Z particles at CERN near Geneva, Switzerland, in the...

Bonaire

(Encyclopedia)Bonaire bônĕrˈ [key], island (1990 est. pop. 11,000), 112 sq mi (290 sq km), a special municipality of the Netherlands, in the West Indies off the coast of Venezuela. It was formerly part of the Ne...

Key Largo

(Encyclopedia)Key Largo, narrow island, c.30 mi (48 km) long, off S Fla., largest of the Florida Keys. Along with other Florida Keys, especially Key West, it has become an increasingly popular tourist spot, noted f...

Browse by Subject