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climate

(Encyclopedia)climate, average condition of the atmosphere near the earth's surface over a long period of time, taking into account temperature, precipitation (see rain), humidity, wind, barometric pressure, and ot...

airline industry

(Encyclopedia)airline industry, the business of transporting paying passengers and freight by air along regularly scheduled routes, typically by airplanes but also by helicopter. Ferdinand Graf von Zeppelin set up ...

space medicine

(Encyclopedia)space medicine, study of the medical and biological effects of space travel on living organisms. The principal aim is to discover how well and for how long humans can withstand the extreme conditions ...

air forces

(Encyclopedia)air forces, those portions of a nation's military organization employing heavier-than-air aircraft for reconnaissance, support of ground troops, aerial combat, and bombing of enemy lines of communicat...

Minnesota, state, United States

(Encyclopedia)CE5 Minnesota mĭnˌĭsōˈtə [key], upper midwestern state of the United States. It is bordered by Lake Superior and Wisconsin (E), Iowa (S), South Dakota and North Dakota (W), and the Canadian p...

United Nations

(Encyclopedia)CE5 CE5 United Nations (UN), international organization established immediately after World War II. It replaced the League of Nations. In 1945, when the UN was founded, there were 51 members; 193...

Israel, country, Asia

(Encyclopedia)CE5 Israel ĭzˈrēəl [key], officially State of Israel, republic (2015 est. pop. 8,065,000, including Israelis in occupied Arab territories), 7,992 sq mi (20,700 sq km), SW Asia, on the Mediterra...

Great Britain

(Encyclopedia)CE5 CE5 CE5 Great Britain, officially United Kingdom of Great Britain and Northern Ireland, constitutional monarchy (2015 est. pop. 65,397,000), ...

National Parks and Monuments (table)

(Encyclopedia)National Parks and Monuments 1 National Parks and Monuments National Monuments National and International Historic Sites and Historical Parks National Memorials National Battlef...

United States

(Encyclopedia)CE5 CE5 CE5 United States, officially United States of America, republic (2015 est. pop. 319,929,000), 3,539,227 sq mi (9,166,598 sq km), North America. The United States is the world's third l...