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science

(Encyclopedia)science [Lat. scientia=knowledge]. For many the term science refers to the organized body of knowledge concerning the physical world, both animate and inanimate, but a proper definition would also hav...

surgery

(Encyclopedia)surgery, branch of medicine concerned with the diagnosis and treatment of injuries and the excision and repair of pathological conditions by means of operative procedures (see also anesthesia; medicin...

air pollution

(Encyclopedia)air pollution, contamination of the air by noxious gases and minute particles of solid and liquid matter (particulates) in concentrations that endanger health. The major sources of air pollution are t...

printing

(Encyclopedia)printing, means of producing reproductions of written material or images in multiple copies. There are four traditional types of printing: relief printing (with which this article is mainly concerned)...

volcano

(Encyclopedia)volcano, vents or fissures in the earth's crust through which gases, molten rock, or lava, and solid fragments are discharged. Their study is called volcanology. The term volcano is commonly applied b...

Connecticut, state, United States

(Encyclopedia)CE5 Connecticut kənĕtˈĭkət [key], southernmost of the New England states of the NE United States. It is bordered by Massachusetts (N), Rhode Island (E), Long Island Sound (S), and New York (W)...

strategy and tactics

(Encyclopedia)strategy and tactics, in warfare, related terms referring, respectively, to large-scale and small-scale planning to achieve military success. Strategy may be defined as the general scheme of the condu...

Louisiana

(Encyclopedia)CE5 Louisiana ləwēˌzēănˈə, lo͞oēˌ– [key], state in the S central United States. It is bounded by Mississippi, with the Mississippi River forming about half of the border (E), the Gulf o...

Pennsylvania

(Encyclopedia)CE5 Pennsylvania pĕnsəlvāˈnyə [key], one of the Middle Atlantic states of the United States. It is bordered by New Jersey, across the Delaware River (E), Delaware (SE), Maryland (S), West Virg...

computer

(Encyclopedia)CE5 Schematic diagram of a computer system: Data flow is indicated by solid lines; control signals are indicated by dashed lines. computer, device capable of performing a series of arithmetic or l...