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Ohio and Erie Canal

(Encyclopedia)Ohio and Erie Canal, former waterway of Ohio, 307 mi (494 km) long, between Lake Erie at Cleveland and the Ohio River at Portsmouth; built 1825–32. It utilized part of the courses of the Cuyahoga, M...

Mughal art and architecture

(Encyclopedia)Mughal art and architecture, a characteristic Indo-Islamic-Persian style that flourished on the Indian subcontinent during the Mughal empire (1526–1857). This new style combined elements of Islamic ...

perfluoroalkyl and polyfluoroalkyl substances

(Encyclopedia)perfluoroalkyl and polyfluoroalkyl substances (PFAS), a group of several thousand synthetic organic chemical compounds made up of a chain of carbon atoms bonded to fluorine atoms. PFAS, which resist w...

time and motion study

(Encyclopedia)time and motion study, analysis of the operations required to produce a manufactured article in a factory, with the aim of increasing efficiency. Each operation is studied minutely and analyzed in ord...

French and Indian Wars

(Encyclopedia)French and Indian Wars, 1689–1763, the name given by American historians to the North American colonial wars between Great Britain and France in the late 17th and the 18th cent. They were really cam...

Netherlands, Austrian and Spanish

(Encyclopedia)Netherlands, Austrian and Spanish, that part of the Low Countries that, from 1482 until 1794, remained under the control of the imperial house of Hapsburg. The area corresponds roughly to modern Belgi...

electric and magnetic units

(Encyclopedia)electric and magnetic units, units used to express the magnitudes of various quantities in electricity and magnetism. Three systems of such units, all based on the metric system, are commonly used. On...

Thousand and One Nights

(Encyclopedia)Thousand and One Nights or Arabian Nights, series of anonymous stories in Arabic, considered as an entity to be among the classics of world literature. The cohesive plot device concerns the efforts of...

Turks and Caicos Islands

(Encyclopedia)Turks and Caicos Islands kīˈkōs [key], dependency of Great Britain (2015 est. pop. 34,000), 166 sq mi (430 sq km), West Indies. There are more than 30 cays and islands, of which eight are inhabited...

information storage and retrieval

(Encyclopedia)information storage and retrieval, the systematic process of collecting and cataloging data so that they can be located and displayed on request. Computers and data processing techniques have made pos...