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The smoothing plane is usually held with both hands, and used in a similar manner to the other bench planes. [ 10 ] Though designed for smoothing, a smoothing plane can be used as an 'all-round' bench tool and for rougher work depending on how it is set up.
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The surface contour of the fiber characterizes its outer surface along its shaft and may be rough, smooth, scaly, serrated, convoluted, or striated, all of which contribute to the friction, softness, and texture. The property is important for the texture and hand feel of the fabric that is made.
Spheroidal or woolsack weathering in granite on Haytor, Dartmoor, England Spheroidal weathering in granite, Estaca de Bares, A Coruña, Galicia, Spain Woolsack weathering in sandstone at the Externsteine rocks, Teutoburg Forest, Germany Corestones near Musina, South Africa that were created by spherodial weathering and exposed by the removal of surrounding saprolite by erosion.
In tribology, rough surfaces usually wear more quickly and have higher friction coefficients than smooth surfaces. Roughness is often a good predictor of the performance of a mechanical component, since irregularities on the surface may form nucleation sites for cracks or corrosion. On the other hand, roughness may promote adhesion.
The fragments must be harder than the bedrock. Quartz fragments will abrade shale but shale fragments will not abrade a quartz rich bedrock. A constant flow of meltwater between the basal surface and the bedrock speeds abrasion. The meltwater constantly rinses away the rock flour allowing the coarser fragments to abrade bedrock. Speed of the ...
The term is from Greek τραχύς (trakhus) 'rough' and ὄνυξ (onyx) 'nail'. When the condition occurs on all the twenty nails of the fingers and toes, it is known as twenty-nail dystrophy , most evident in childhood, [ 4 ] favoring males.
The floor hand works primarily on the rig floor where he is the one actually operating the tongs, iron roughneck, tugger, and catwalk, and doing pretty much any other job that is asked of him. Roustabout (lease hand): On bigger rigs and offshore rigs, a roustabout does most of the painting and cleaning so roughnecks can take care of other work.