a strut is a structural component commonly found in engineering, aeronautics, architecture and anatomy. struts generally work by resisting longitudinal compression, but they may also serve in tension. 1 human anatomy. 2 architecture and construction. part of the functionality of the clavicle is to serve as a strut between the scapula and .
a water turbine is a rotary machine that converts kinetic energy and potential energy of water into mechanical work. water turbines were developed in the 19th century and were widely used for industrial power prior to electrical grids. now they are mostly used for electric power generation.
the first american turret lathe was invented by stephen fitch in 1845. the archetypical turret lathe, and the first in order of historical appearance, is the horizontal-bed, manual turret lathe. the term 'turret lathe' without further qualification is still understood to refer to this type. the formative decades for this class of machine were .
air assault is the movement of ground-based military forces by vertical take-off and landing vtol aircraft—such as the helicopter—to seize and hold key terrain which has not been fully secured, and to directly engage enemy forces behind enemy lines. in addition to regular infantry training, air-assault units usually receive training in rappelling and air transportation, and their .
the darrieus wind turbine is a type of vertical axis wind turbine vawt used to generate electricity from wind energy.the turbine consists of a number of curved aerofoil blades mounted on a rotating shaft or framework. the curvature of the blades allows the blade to be stressed only in tension at high rotating speeds. there are several closely related wind turbines that use strht blades.