single-acting raising machine
21airplane — /air playn /, n. 1. a heavier than air aircraft kept aloft by the upward thrust exerted by the passing air on its fixed wings and driven by propellers, jet propulsion, etc. 2. any similar heavier than air aircraft, as a glider or helicopter. Also …
22international relations — a branch of political science dealing with the relations between nations. [1970 75] * * * Study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies and political… …
23theatre — /thee euh teuhr, theeeu /, n. theater. * * * I Building or space in which performances are given before an audience. It contains an auditorium and stage. In ancient Greece, where Western theatre began (5th century BC), theatres were constructed… …
24ancient Rome — ▪ ancient state, Europe, Africa, and Asia Introduction the state centred on the city of Rome. This article discusses the period from the founding of the city and the regal period, which began in 753 BC, through the events leading to the… …
25tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …
26Argentina — /ahr jeuhn tee neuh/; Sp. /ahrdd hen tee nah/, n. a republic in S South America. 35,797,536; 1,084,120 sq. mi. (2,807,870 sq. km). Cap.: Buenos Aires. Also called the Argentine. Official name, Argentine Republic. * * * Argentina Introduction… …
27Tom Waits — Waits during an interview in Buenos Aires, Argentina, April 2007 Background information Birth name Thomas Alan Waits Born …
28Chronology of Provisional Irish Republican Army actions (1990-1999) — This is a chronology of activities by the Provisional Irish Republican Army (IRA), from 1990 to 1999. For actions before and after this period see Chronology of Provisional Irish Republican Army actions. Incidents resulting in at least three… …
29Georgia — /jawr jeuh/, n. 1. a state in the SE United States. 5,464,265; 58,876 sq. mi. (152,489 sq. km). Cap.: Atlanta. Abbr.: GA (for use with zip code), Ga. 2. Also called Georgian Republic. a republic in Transcaucasia, bordering on the Black Sea, N of… …
30Sting (musician) — Sting Sting at the 2009 premiere of Moon Background information Birth name Gordon Matthew Sumner Also kno …
