cutoff operation
71Aerial refueling — A C 17 Globemaster refuels through the boom of a Boeing KC 135 Stratotanker …
72Angolan Civil War — Part of the Cold War and the South African Border War …
73international trade — Introduction economic transactions that are made between countries. Among the items commonly traded are consumer goods, such as television sets and clothing; capital goods, such as machinery; and raw materials and food. Other transactions… …
74First Transcontinental Railroad — This article refers to a railroad built in the United States between Omaha and Sacramento, completed in 1869. For other transcontinental railroads see transcontinental railroad. At the ceremony for the driving of the Last Spike at Promontory… …
75Space Shuttle external tank — A Space Shuttle External Tank (ET) is the component of the Space Shuttle launch vehicle that contains the liquid hydrogen fuel and liquid oxygen oxidizer. During lift off and ascent it supplies the fuel and oxidizer under pressure to the three… …
76Roll forming — Roll forming, also spelled rollforming, is a continuous bending operation in which a long strip of metal (typically coiled steel) is passed through consecutive sets of rolls, or stands, each performing only an incremental part of the bend, until… …
77Piezoelectric sensor — A piezoelectric sensor is a device that uses the piezoelectric effect to measure pressure, acceleration, strain or force by converting them to an electrical signal.ApplicationsPiezoelectric sensors have proven to be versatile tools for the… …
78Korat Royal Thai Air Force Base — Infobox Airport name = Korat Royal Thai Air Force Base nativename = image width = 250 IATA = ICAO = VTUN type = Military operator = Royal Thai Air Force location = Nakhon Ratchasima, Thailand elevation f = 729 elevation m = 222 coordinates =… …
79Russian tube designations — Receiver tubes = In the 1950s a 5 element system (GOST 5461 59, later 13393 76) was adopted in the (then) Soviet Union for designating receiver vacuum tubes.The 1st element (from left to right) is (for receiving tubes) a number specifying… …
80Zastava M70 — Infobox Weapon|is ranged=yes caption=Zastava M70 name=Zastava M70 type=Assault rifle origin=flagcountry|Yugoslavia designer=Zastava Arms ( Zastava oružje ) manufacturer=Zastava Arms cartridge=7.62x39mm design date= 1968 prod date= 1970 service=… …
