determining the size
41Figure of the Earth — An oblate spheroid Geodesy …
42Education in the United States — of America U.S. Department of Education Secretary Deputy Secretary Arne Duncan Anthony Miller …
43Social class in the United States — A monument to the working and supporting classes along Market Street in the heart of San Francisco s Financial District Income in the United States Affluence in the …
44History of the tank — This article is about the history of the tank.The prehistory of the tank [ thumb|right|Recreation of an armoured vehicle designed by Leonardo da Vinci at the Château d Amboise] The problem of advancing to attack while under fire is as old as… …
45Book size — Comparison of some book sizes based on American Library Association The size of a book is generally measured by the height against the width of a leaf,[1] or sometimes the height and width of its cover.[2] A series o …
46Household income in the United States — For information on the income of individuals, see Personal income in the United States. Median household income in the United States, by county, in 2008 Income in the United States …
47Judicial system of the People's Republic of China — For the Ministry of Justice, see Ministry of Justice of the People s Republic of China. People s Republic of China This article is part of the series: Politics and government of …
48Roman army of the mid-Republic — Contemporary portrait of Scipio Africanus, engraved on a gold signet ring manufactured in Capua, S. Italy, Considered the greatest Roman military leader of the Second Punic War, Scipio permanently drove the Carthaginians out of Spain in a series… …
49Economy of the United States — Economy of United States Rank 1st (nominal) / 1st (PPP) Currency US$ (USD) …
50General aviation in the United Kingdom — Infobox Aviation name=General aviation in the United Kingdom caption=Traditional general aviation fixed wing light aircraft, the most numerous class of aircraft in the sectorGeneral aviation in the United Kingdom has been defined as a civil… …
