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Strategic Command

(Encyclopedia)Strategic Command: see under Strategic Air Command. ...

Aldrin, Buzz

(Encyclopedia)Aldrin, Buzz ôlˈdrĭn [key] (Edwin Eugene Aldrin, Jr.), 1930–, American astronaut, b. Montclair, N.J. After graduating from West Point (1951), Aldrin joined the U.S. air force and flew 66 combat m...

Pensacola

(Encyclopedia)Pensacola pĕnsəkōˈlə [key], city (1990 pop. 58,165), seat of Escambia co., extreme NW Fla., on Pensacola Bay; inc. 1822. It is a port of entry with a natural harbor and shipping and fishing indus...

Branson, Sir Richard

(Encyclopedia)Branson, Sir Richard (Richard Charles Nicholas Branson), 1950–, British business mogul and adventurer. He left school at 16 to start his first business, the magazine Student. In 1970 he began a mail...

wind tunnel

(Encyclopedia)wind tunnel, apparatus for studying the interaction between a solid body and an airstream. A wind tunnel simulates the conditions of an aircraft in flight by causing a high-speed stream of air to flow...

seeing

(Encyclopedia)seeing, in astronomy, the clarity with which stars and other celestial objects can be observed. It is primarily determined by the atmosphere of the earth. The most obvious phenomenon is twinkling, whe...

hygrometer

(Encyclopedia)hygrometer hīgrŏmˈətər [key], instrument used to measure the moisture content of a gas, as in determining the relative humidity of air. The temperature at which dew or frost forms is a measure of...

carbon monoxide

(Encyclopedia)carbon monoxide, chemical compound, CO, a colorless, odorless, tasteless, extremely poisonous gas that is less dense than air under ordinary conditions. It is very slightly soluble in water and burns ...

Millington

(Encyclopedia)Millington, city (1990 pop. 17,866), Shelby co., SW Tenn., a suburb of Memphis, in a livestock and cotton region; inc. 1903. Memphis Naval Air Station is a major source of employment. ...

pressure

(Encyclopedia)pressure, in mechanics, ratio of the force acting on a surface to the area of the surface; it is thus distinct from the total force acting on a surface. A force can be applied to and sustained by a si...