variable-stability in-flight test aircraft
91motion-picture technology — Introduction the means for the production and showing of motion pictures. It includes not only the motion picture camera and projector but also such technologies as those involved in recording sound, in editing both picture and sound, in… …
92Control theory — For control theory in psychology and sociology, see control theory (sociology) and Perceptual Control Theory. The concept of the feedback loop to control the dynamic behavior of the system: this is negative feedback, because the sensed value is… …
93Mikoyan-Gurevich MiG-21 — MiG 21 Romanian MiG 21UM Lancer B Role Fighter Manufacturer …
94photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …
95De Havilland Hornet — For the 1930 s single engine cabin biplane see: de Havilland Hornet Moth infobox Aircraft name = D.H.103 Hornet Sea Hornet type = Land and naval based fighter aircraft manufacturer = de Havilland caption = The de Havilland Hornet Mk 1 (F.1)(note… …
96Kawasaki Ki-61 — infobox Aircraft name = Ki 61 Hien type = Fighter manufacturer = Kawasaki Aircraft (Kawasaki Heavy Industries) caption = A Ki 61 I Otsu designer = Takeo Doi and Shin Owada first flight = December 1941 introduced = 1943 retired = 1945 status =… …
97Nobel Prizes — ▪ 2009 Introduction Prize for Peace The 2008 Nobel Prize for Peace was awarded to Martti Ahtisaari, former president (1994–2000) of Finland, for his work over more than 30 years in settling international disputes, many involving ethnic,… …
98Bell X-5 — infobox Aircraft name =X 5 type =Research aircraft manufacturer =Bell Aircraft Corporation caption = designer =Robert J. Woods first flight =20 June 1951 introduced = retired = December 1958 status = primary user = U.S.Air Force more users = NACA …
99MGM-31 Pershing — Pershing was a family of solid fueled two stage medium range ballistic missiles designed and built by Martin Marietta to replace the Redstone missile as the United States Army s primary theater level weapon. The Pershing systems lasted over 30… …
100brazil — /breuh zil /, n. brazilwood. [1350 1400; ME brasile < ML < It < Sp brasil, deriv. of brasa live coal (the wood being red in color) < Gmc; see BRAISE] * * * Brazil Introduction Brazil Background: Following three centuries under the rule of… …
