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• building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …   Universalium

• airplane — /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 …   Universalium

• military aircraft — Introduction       any type of aircraft that has been adapted for military use.       Aircraft have been a fundamental part of military power since the mid 20th century. Generally speaking, all military aircraft fall into one of the following… …   Universalium

• North America — North American. the northern continent of the Western Hemisphere, extending from Central America to the Arctic Ocean. Highest point, Mt. McKinley, 20,300 ft. (6187 m); lowest, Death Valley, 276 ft. (84 m) below sea level. 400,000,000 including… …   Universalium

• aerospace industry — Introduction       assemblage of manufacturing concerns that deal with vehicular flight within and beyond the Earth s atmosphere. (The term aerospace is derived from the words aeronautics and spaceflight.) The aerospace industry is engaged in the …   Universalium

• ARCA (NGO) — ARCA Type Private Industry Aerospace and space tourism Founded 1999 …   Wikipedia

• spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… …   Universalium

• Blimp — For other uses, see Blimp (disambiguation). Not to be confused with Airship or Balloon (aircraft). The Spirit of Goodyear, one of the iconic Goodyear Blimps A blimp, or non rigid airship, is a floating airship without an internal supporting… …   Wikipedia

• Technological and industrial history of the United States — The technological and industrial history of the United States describes the United States emergence as one of the largest nations in the world as well as the most technologically powerful nation in the world. The availability of land and labor,… …   Wikipedia

• USS Macon (ZRS-5) — was a rigid airship built and operated by the United States Navy for scouting. In service for less than two years, in 1935 Macon was damaged in a storm and lost off the coast of California. At less than 20ft (ca. 7m) shorter than Hindenburg , she …   Wikipedia

• Embankment dam — An embankment dam is a massive artificial water barrier. It is typically created by the emplacement and compaction of a complex semi plastic mound of various compositions of soil, sand, clay and/or rock. It has a semi permanent waterproof natural …   Wikipedia