"B-17" redirects here. For other uses, see B17 (disambiguation). "Flying Fortress" redirects here. For the 1942 film, see Flying Fortress (film). The Boeing B-17 Flying Fortress is a four-engine heavy bomber developed in the 1930s for the United States Army Air Corps (USAAC). Competing against Douglas and Martin for a contract to build 200 bombers, the Boeing entry (prototype Model 299/XB-17) outperformed both competitors and exceeded the air corps' performance specifications. Although Boeing lost the contract (to.
History of photography, method of recording the image of an object through the action of light, or related radiation, on a light-sensitive material. The word, derived from the Greek photos (“light”) and graphein (“to draw”), was first used in the 1830s. This article treats the historical and aesthetic aspects of still photography. For a discussion of the technical aspects of the medium, see photography, technology of. For a treatment of motion-picture photography, or cinematography, see motion picture, history.
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