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progressive education

(Encyclopedia)progressive education, movement in American education. Confined to a period between the late 19th and mid-20th cent., the term “progressive education” is generally used to refer only to those educ...

Crete

(Encyclopedia)Crete krēt [key], Gr. Kríti, island, c.3,235 sq mi (8,380 sq km), SE Greece, in the E Medit...

Jacobites

(Encyclopedia)Jacobites jăkˈəbītsˌ [key], adherents of the exiled branch of the house of Stuart who sought to restore James II and his descendants to the English and Scottish thrones after the Glorious Revolut...

Poe, Edgar Allan

(Encyclopedia)Poe, Edgar Allan, 1809–49, American poet, short-story writer, and critic, b. Boston. He is acknowledged today as one of the most brilliant and original writers in American literature. His skillfully...

X ray

(Encyclopedia)CE5 Typical X-ray composite spectrum (intensity as a function of frequency) X ray, invisible, highly penetrating electromagnetic radiation of much shorter wavelength (higher frequency) than visibl...

children's literature

(Encyclopedia)children's literature, writing whose primary audience is children. See also children's book illustration. The contributions and innovations of the 19th cent. continued into the 20th cent., achieving...

school

(Encyclopedia)school, term commonly referring to institutions of pre-college formal education. It also properly includes colleges, universities, and many types of special training establishments (see adult educatio...

telephone

(Encyclopedia)CE5 Hand telephone telephone, device for communicating sound, especially speech, usually by means of wires in an electric circuit. The telephones now in general use evolved from the device invente...

deafness

(Encyclopedia)deafness, partial or total lack of hearing. It may be present at birth (congenital) or may be acquired at any age thereafter. A person who cannot detect sound at an amplitude of 20 decibels in a frequ...

colloid

(Encyclopedia)colloid kŏlˈoid [key] [Gr.,=gluelike], a mixture in which one substance is divided into minute particles (called colloidal particles) and dispersed throughout a second substance. The mixture is also...