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minimalism

(Encyclopedia)minimalism, schools of contemporary art and music, with their origins in the 1960s, that have emphasized simplicity and objectivity. In music, the minimalist movement was, like minimal art, a react...

atomic clock

(Encyclopedia)atomic clock, electric or electronic timekeeping device that is controlled by atomic or molecular oscillations. A timekeeping device must contain or be connected to some apparatus that oscillates at a...

sand

(Encyclopedia)sand, rock material occurring in the form of loose, rounded or angular grains, varying in size from .06 mm to 2 mm in diameter, the particles being smaller than those of gravel and larger than those o...

tower

(Encyclopedia)tower, structure, the greatest dimension of which is its height. Towers have belonged to two general types. The first embodies practical uses such as defense (characteristic of the Middle Ages), to ca...

Rio Grande, river, United States and Mexico

(Encyclopedia)Rio Grande rēˈō grănd, rēˈō gränˈdē [key], river, c.1,885 mi (3,000 km) long, rising in SW Colo. in the San Juan Mts. and flowing south through the middle of N.Mex., past Albuquerque, then c...

charcoal

(Encyclopedia)charcoal, substance obtained by partial burning or carbonization (destructive distillation) of organic material. It is largely pure carbon. The entry of air during the carbonization process is control...

fingerprint

(Encyclopedia)fingerprint, an impression of the underside of the end of a finger or thumb, used for identification because the arrangement of ridges in any fingerprint is thought to be unique and permanent with eac...

turbine

(Encyclopedia)CE5 Types of turbines turbine, rotary engine that uses a continuous stream of fluid (gas or liquid) to turn a shaft that can drive machinery. A water, or hydraulic, turbine is used to drive electr...

psychological test

(Encyclopedia)psychological test, any of a variety of testing procedures for measuring psychological traits and behavior, or for studying some specialized aspect of ability. Several forms of testing have arisen fro...

Balinese music

(Encyclopedia)Balinese music represents, to a large extent, a survival of the pre-Islamic music of Java. It was taken to Bali by Hindu Javanese in the 15th cent. and uses the tonal systems of Javanese music, of whi...