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altimeter

(Encyclopedia)altimeter ăltĭmˈĭtər, ălˈtĭmēˌtər [key], device for measuring altitude. The most common type is an aneroid barometer calibrated to show the drop in atmospheric pressure in terms of linear e...

amphibious warfare

(Encyclopedia)amphibious warfare ămfĭbˈēəs [key], employment of a combination of land and sea forces to take or defend a military objective. The general strategy is very ancient and was extensively employed by...

Ebey's Landing National Historical Reserve

(Encyclopedia)Ebey's Landing National Historical Reserve: see National Parks and Monuments (table)national parks and monuments (table). ...

turn and bank indicator

(Encyclopedia)turn and bank indicator, aircraft instrument containing one indicator to show turning, or rotation about the vertical axis, and another to show banking, or rotation about the longitudinal axis. The tw...

air, law of the

(Encyclopedia)air, law of the, in the broadest sense, all law connected with the use of the air, including radio and satellite transmissions; more commonly, it refers to laws concerning civil aviation. The developm...

Alamogordo

(Encyclopedia)Alamogordo ălˌəməgôrˈdō, –də [key], city, seat of Otero co., S N.Mex., near the Sacramento Mts.; inc. 1912. Holloman Air Force Base, home to U.S. stealth aircraf...

noise pollution

(Encyclopedia)noise pollution, human-created noise harmful to health or welfare. Transportation vehicles are the worst offenders, with aircraft, railroad stock, trucks, buses, automobiles, and motorcycles all produ...

weather balloon

(Encyclopedia)weather balloon, balloon used in the measurement and evaluation of mostly upper atmospheric conditions (see atmosphere). Information may be gathered during the vertical ascent of the balloon through t...

shock absorber

(Encyclopedia)shock absorber, device for reducing the effect of a sudden shock by the dissipation of the shock's energy. On an automobile, springs and shock absorbers are mounted between the wheels and the frame. W...

radar

(Encyclopedia)radar, system or technique for detecting the position, movement, and nature of a remote object by means of radio waves reflected from its surface. Although most radar units use microwave frequencies, ...