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internal-combustion engine
(Encyclopedia) CE5 Internal-combustion engines: In the four-stroke reciprocating engine (above), a mixture of fuel and air is taken into the chamber on the down-stroke of the piston, is compressed on the up-strok...Alabama, state, United States
(Encyclopedia) CE5 Alabama ăləbămˈə [key], state in the SE United States. It is bordered by Tennessee (N), Georgia (E), Florida and the Gulf of Mexico (S), and Mississippi (W). In 1954 the U.S. Supreme Co...Clinton, Bill
(Encyclopedia)Clinton, Bill (William Jefferson Clinton), 1946–, 42d President of the United States (1993–2001), b. Hope, Ark. His father died before he was born, and he was originally named William Jefferson Bl...economics
(Encyclopedia)economics, study of how human beings allocate scarce resources to produce various commodities and how those commodities are distributed for consumption among the people in society (see distribution). ...French art
(Encyclopedia)French art, the artistic production of the region that constitutes the historic nation of France. See also French architecture. The innovations of postimpressionism, combined with the influence of C...Illinois, state, United States
(Encyclopedia) CE5 Illinois, midwestern state in the N central United States. It is bordered by Lake Michigan and Indiana (E); Kentucky, across the Ohio River (SE); Missouri and Iowa, across the Mississippi River...Ireland, Northern
(Encyclopedia) CE5 Ireland, Northern, division of the United Kingdom of Great Britain and Northern Ireland, 5,462 sq mi (14,147 sq km), NE Ireland. Made up of six o...Niger, country, Africa
(Encyclopedia) CE5 Niger nīˈjər, nēzhârˈ [key], officially Republic of Niger, republic (2015 est. pop. 18,045,729), 489,189 sq mi (1,267,000 sq km), W Africa. It borders on Burkina Faso and Mali in the west...Asia
(Encyclopedia) CE5 Asia āˈzhə [key], the world's largest continent 17,139,000 sq mi (44,390,000 sq km) and most populous (2015 est. pop. 4,419,898,000), with nearly three fifths of the world's total population...Maryland
(Encyclopedia) CE5 Maryland mârˈələnd [key], one of the Middle Atlantic states of the United States. It is bounded by Delaware and the Atlantic Ocean (E), the District of Columbia (S), Virginia and West Virgi...Browse by Subject
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