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calculator
(Encyclopedia)calculator or calculating machine, device for performing numerical computations; it may be mechanical, electromechanical, or electronic. The electronic computer is also a calculator but performs other...lock and key
(Encyclopedia)lock and key, fastening fitted to an entryway, such as a gate or door, or a container, such as a cabinet, drawer or safe, to keep it closed and/or prevent unauthorized access or use. Locks typically c...Roman architecture
(Encyclopedia)Roman architecture, structures produced by the ancient Romans. Most important among the structures developed by the Romans themselves were basilicas, baths, amphitheaters, and triumphal arches. U...Newman, Saint John Henry
(Encyclopedia)Newman, SaintJohn Henry, 1801–90, English churchman, theologian, and writer, cardinal of the Roman Catholic Church, one of the founders of the Oxford movement, b. London. Newman was canonized in 201...Trinidad and Tobago
(Encyclopedia)CE5 Trinidad and Tobago trĭnˈĭdăd, təbāˈgō [key], officially Republic of Trinidad and Tobago, republic (2015 est. pop. 1,222,000), 1,980 sq mi (5,129 sq km), West Indies. The capital is Por...Solzhenitsyn, Aleksandr Isayevich
(Encyclopedia)Solzhenitsyn, Aleksandr Isayevich əlyĭksänˈdər ēsīˈəvĭch sôlˌzhənētˈsĭn [key], 1918–2008, Russian writer widely regarded as one of the greatest and most influential authors of the 20...jet propulsion
(Encyclopedia)CE5 Types of jet engines: In the propeller-driven turbine a stream of high-velocity gases provides the power to drive the turbine and turn the propeller. In the jet-driven turbine the stream of gas...outsider art
(Encyclopedia)outsider art, artwork created by typically unconventional and untrained artists from the margins of society and the art world. The term was coined in 1972 by British scholar and art critic Roger Cardi...Idaho
(Encyclopedia)CE5 Idaho īˈdəhō [key], one of the Rocky Mt. states in the NW United States. It is bordered by Montana and Wyoming (E), Utah and Nevada (S), Oregon and Washington (W), and the Canadian province...Detroit, city, United States
(Encyclopedia)Detroit dĭtroitˈ [key], city (2020 pop. 639,111), seat of Wayne co., SE Mich., on the Detro...Browse by Subject
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