point-load test
81tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …
82Northrop P-61 Black Widow — P 61 Black Widow A P 61A 1NO of 419th Night Fighter Squadron Role Night fighter …
83Force — For other uses, see Force (disambiguation). See also: Forcing (disambiguation) Forces are also described as a push or pull on an object. They can be due to phenomena such as gravity, magnetism, or anything that might cause a mass to accelerate …
84Heinkel He 112 — infobox Aircraft name = He 112 type = Fighter manufacturer = Heinkel caption = designer =Günter brothers first flight =September 1935 introduction = retired = status = primary user =Luftwaffe more users =Imperial Japanese Navy Spanish Air Force… …
85architecture — /ahr ki tek cheuhr/, n. 1. the profession of designing buildings, open areas, communities, and other artificial constructions and environments, usually with some regard to aesthetic effect. Architecture often includes design or selection of… …
86DEC Alpha — Alpha Designer Digital Equipment Corporation Bits 64 bit Introduced 1992 Design RISC Type Register Register Encoding Fixed …
87Electronic amplifier — A practical amplifier circuit An electronic amplifier is a device for increasing the power of a signal. It does this by taking energy from a power supply and controlling the output to match the input signal shape but with a larger amplitude. In… …
88F-14 Tomcat — infobox Aircraft name= F 14 Tomcat caption= An F 14A Tomcat from the USS Nimitz during Operation Southern Watch type= Interceptor/multi role Fighter aircraft manufacturer= Grumman Northrop Grumman first flight= 21 December 1970 introduction=… …
89Curtain wall — For defensive curtain walls in medieval buildings, see Curtain wall (fortification). Glass curtain wall of the Bauhaus Dessau A curtain wall is an outer covering of a building in which the outer walls are non structural, but merely keep out the… …
90Dynamometer — For the dynamometer used in railroading, see dynamometer car .A dynamometer or dyno for short, is a machine used to measure torque and rotational speed (rpm) from which power produced by an engine, motor or other rotating can be calculated.A… …
