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41Furnace — For other uses, see Furnace (disambiguation). Industrial Furnace from 1907 A furnace is a device used for heating. The name derives from Latin fornax, oven. In American English and Canadian English, the term furnace on its own is generally used… …
42Surface grinder — A surface grinder is a machine tool used to provide precision ground surfaces, either to a critical size or for the surface finish.The typical precision of a surface grinder depends on the type and usage, however +/ 0.002 mm (+/ 0.0001 ) should… …
43Surface grinding — is used to produce a smooth finish on flat surfaces. It is a widely used abrasive machining process in which a spinning wheel covered in rough particles (grinding wheel) cuts chips of metallic or non metallic substance from a workpiece, making a… …
44Binaural recording — is a method of recording audio which uses a special microphone arrangement intended for replay using headphones. Dummy head recording refers to a specific method of capturing the audio, generally using a bust including pinnae (outer ears). As one …
45List of accidents and incidents involving commercial aircraft — This list of accidents and incidents involving commercial aircraft is grouped by the years in which the accidents and incidents occurred. For more exhaustive lists, see the [http://www.baaa acro.com/ Aircraft Crash Record Office] or the… …
46Delta IV rocket — Infobox rocket caption =Delta IV Medium launch carrying DSCS III B6 name =Delta IV (Delta 9000) function = Orbital launch vehicle manufacturer = Boeing IDS United Launch Alliance country origin = United States height =63 77.2 m alt height =206… …
47Air Transat Flight 236 — Air Transat A330 200 C GITS Incident summary Date …
48Convair CV-240 — infobox Aircraft name = CV 240 family type = Airliner manufacturer = Convair caption = A restored Convair CV 240 in Western Air Lines livery, at the Planes of Fame Museum in Chino, California designer = first flight = 16 March 1947 introduced =… …
49List of accidents and incidents involving the Convair CV-240 family — A restored Convair CV 240 in Western Air Lines livery, at the Planes of Fame Museum in Chino, California The Convair CV 240 was an American airliner produced by Convair from 1947 to 1954, initially as a possible replacement of the ubiquitous Dou …
50Delta IV — This article is about the rocket. For the submarine see Delta class submarine. Delta IV (Delta 9000) Delta IV Medium launch carrying DSCS III B6 Function Orbital launch vehicle Manufacturer Boeing …
