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swimming

(Encyclopedia)swimming, self-propulsion through water, often as a form of recreation or exercise or as a competitive sport. It is mentioned in many of the classics in connection with heroic acts or religious rites....

scale, in weights and measures

(Encyclopedia)scale, in weights and measures, instruments for determining weight, generally for other than laboratory use. For the principles of operation of all weighing devices, see balance. Platform scales utili...

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...

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...

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 ...

Sumerian and Babylonian art

(Encyclopedia)Sumerian and Babylonian art, works of art and architecture created by the Sumerian and Babylonian peoples of ancient Mesopotamia, civilizations which had an artistic tradition of remarkable antiquity,...