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tugboat

(Encyclopedia)tugboat, small, strongly built vessel, used to guide large oceangoing ships into and out of port and to tow barges, dredging and salvage equipment, and disabled vessels. Tugboats range in overall leng...

Adda

(Encyclopedia)Adda ädˈdä [key], river, 194 mi (312 km) long, rising in the Rhaetian Alps, N Italy, and flowing SW through Lake Como, then S into the Po River near Cremona. Its upper course furnishes much electri...

elevator, in machinery

(Encyclopedia)elevator, in machinery, device for transporting people or goods from one level to another. The term is applied to the enclosed structures as well as the open platforms used to provide vertical transpo...

xerography

(Encyclopedia)xerography zərŏgˈrəfēˌ [key], also called electrophotography, method of dry photocopying in which the image is transferred by using the attractive forces of electric charges. A beam of light, us...

automobile racing

(Encyclopedia)automobile racing, sport in which specially designed or modified automobiles race on any of various courses. Automobile racing originated in France in 1894 and appeared in the United States the follow...

solid-state physics

(Encyclopedia)solid-state physics, study of the properties of bulk matter rather than those of the individual particles that compose it. Solid-state physics is concerned with the properties exhibited by atoms and m...

ray, in zoology

(Encyclopedia)ray, extremely flat-bodied cartilaginous marine fish, related to the shark. The pectoral fins of most rays are developed into broad, flat, winglike appendages, attached all along the sides of the head...

Day, William Rufus

(Encyclopedia)Day, William Rufus, 1849–1923, American statesman and associate justice of the U.S. Supreme Court (1903–22), b. Ravenna, Ohio. Admitted (1872) to the bar, Day practiced law in Ohio and served (188...

Salinas, city, United States

(Encyclopedia)Salinas səlēˈnəs [key], city (1990 pop. 108,777), seat of Monterey co., W Calif.; inc. 1874. It is the shipping and processing center of a fertile valley famous for its grain and lettuce. Fruits, ...

Lima, city, United States

(Encyclopedia)Lima līˈmə [key], city (1990 pop. 45,549), seat of Allen co., NW Ohio; settled 1831, inc. 1842. Located in a fertile farm area, it is a processing and marketing center for grain, dairy, and meat pr...