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battery, electric
(Encyclopedia) CE5 Lead storage cell: At the lead-dioxide electrode, electrons from the circuit combine with lead dioxide and sulfuric acid to form lead sulfate and water. At the spongy-lead electrode, lead react...evidence
(Encyclopedia)evidence, in law, material submitted to a judge or a judicial body to resolve disputed questions of fact. The rules discussed in this article were developed in England for use in jury trials. Today, t...map
(Encyclopedia)map, conventionalized representation of spatial phenomena on a plane surface. Unlike photographs, maps are selective and may be prepared to show various quantitative and qualitative facts, including b...book
(Encyclopedia)book. The word book has come to have many meanings, e.g., any collection of sheets of paper, wood, or other material sewn or bound together; a division of a written work (books of the Bible, books of ...espionage
(Encyclopedia)espionage ĕsˈpēənäzhˌ [key], the act of obtaining information clandestinely. The term applies particularly to the act of collecting military, industrial, and political data about one nation for ...dinosaur
(Encyclopedia)dinosaur dīˈnəsôr [key] [Gr., = terrible lizard], extinct land reptile of the Mesozoic era. The dinosaurs, which were egg-laying animals, ranged in length from 21⁄2 ft (91 cm) to about 127 f...Boston, city, United States
(Encyclopedia)Boston, city (2020 pop. 692,600), state capital and seat of Suffolk co., E Mass., on Boston Bay, an arm of Massachusetts Bay; inc. 1822. The city includ...Ireland, Republic of
(Encyclopedia) CE5 Ireland, Republic of, Gaelic, Eire, republic (2015 est. pop. 4,700,000), 27,136 sq mi (70,282 sq km). It occupies all but the northeastern corner of the island of Ireland in the British Isles. ...camera
(Encyclopedia) CE5 Image formed by a camera camera, lightproof box or container, usually fitted with a lens, which gathers incoming light and concentrates it so that it can be directed toward the film (in an opt...Utah , state, United States
(Encyclopedia) CE5 Utah yo͞oˈtäˌ [key], Rocky Mt. state of the W United States. It is bordered by Idaho and Wyoming (N), Colorado (E), Arizona (S), and Nevada (W), and touches New Mexico in the SE, at the Fou...Browse by Subject
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