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Salzburg Festival

(Encyclopedia)Salzburg Festival, annual festival of music and drama held in Salzburg, Austria, for five weeks starting in late July. The festival may be considered a descendant of the Salzburg Music Festival Weeks ...

radio-frequency identification

(Encyclopedia)radio-frequency identification (RFID), a technology that uses radio waves to transmit data and uniquely identify an animal, person, or thing. An RFID system typically consists of a tag and a reader. T...

herbicide

(Encyclopedia)herbicide hrˈbəsīdˌ [key], chemical compound that kills plants or inhibits their normal growth. A herbicide in a particular formulation and application can be described as selective or nonselectiv...

insecticides

(Encyclopedia)insecticides, chemical, biological, or other agents used to destroy insect pests; the term commonly refers to chemical agents only. The liabilities of chemical insecticides have encouraged interest ...

physics

(Encyclopedia)physics, branch of science traditionally defined as the study of matter, energy, and the relation between them; it was called natural philosophy until the late 19th cent. and is still known by this na...

civil disobedience

(Encyclopedia)civil disobedience, refusal to obey a law or follow a policy believed to be unjust. Practitioners of civil disobedience usual base their actions on moral right and employ the nonviolent technique of p...

language

(Encyclopedia)language, systematic communication by vocal symbols. It is a universal characteristic of the human species. Nothing is known of its origin, although scientists have identified a gene that clearly cont...

quantum theory

(Encyclopedia)quantum theory, modern physical theory concerned with the emission and absorption of energy by matter and with the motion of material particles; the quantum theory and the theory of relativity togethe...

radioactivity

(Encyclopedia)CE5 Effects of a magnetic field on the products of radioactivity CE5 Disintegration series: Radioactive decay of radium-226 into lead-206 radioactivity, spontaneous disintegration or decay of t...

legislature

(Encyclopedia)legislature, representative assembly empowered to enact statute law. Generally the representatives who compose a legislature are constitutionally elected by a broad spectrum of the population. While...