annular air gap
1gap — [1] The distance between the center terminal (electrode) and the outer terminal (electrode) through which the spark must travel in a spark plug. Also see spark plug gap air gap. [2] The distance between the points in contact breaker points. See… …
2Focke-Wulf Fw 190 — infobox Aircraft name =Fw 190 type =Fighter manufacturer = Primarily Focke Wulf Flugzeugbau AG, but also Ago, Arado, Fieseler, Mimetall, Norddeutsche Dornier and others caption = Fw 190 A designer =Kurt Tank first flight =1 June 1939 introduced… …
3Avrocar — infobox Aircraft name =VZ 9 AV Avrocar type =experimental proof of concept vehicle manufacturer =Avro Aircraft Ltd. (Canada) caption = The Avrocar S/N 58 7055 (marked AV 7055 ) on its rollout. designer =John Frost first flight =12 November 1959… …
4Spark plug — A spark plug (also, very rarely nowadays, in British English: a sparking plug) is an electrical device that fits into the cylinder head of some internal combustion engines and ignites compressed aerosol gasoline by means of an electric spark.… …
5Wing configuration — For aircraft configurations in general, including fuselage, tail and powerplant configuration, see Aircraft. For rotary winged aircraft types, see Rotorcraft. For direct lift and compound or hybrid types, see Powered lift. Fixed wing aircraft,… …
6USS Iowa turret explosion — USS Iowa s Turret Two explodes Date April 19, 1989 Place Caribbean Sea ne …
7Thiele/Small — commonly refers to a set of electromechanical parameters that define the specified low frequency performance of a loudspeaker driver. These parameters are published in specification sheets by driver manufacturers so that designers have a guide in …
8Hans von Ohain — Hans Joachim Pabst von Ohain (December 14 1911ndash March 13 1998) was one of the inventors of jet propulsion. The engineers, Frank Whittle in the United Kingdom and Hans von Ohain in Germany, developed the concept independently during the late… …
9Cleft lip and palate — For other uses, see Cleft. Cleft lip and palate Classification and external resources …
10Transmission electron microscopy — A TEM image of the polio virus. The polio virus is 30 nm in size.[1] Transmission electron microscopy (TEM) is a microscopy technique whereby a beam of electrons is transmitted through an ultra thin specimen, interacting with the specimen as it… …
