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  2. Arris - Wikipedia

    en.wikipedia.org/wiki/Arris

    In architecture, an arris is the sharp edge formed by the intersection of two surfaces, such as the corner of a masonry unit; [1] the edge of a timber in timber framing; the junction between two planes of plaster or any intersection of divergent architectural details. The term also refers to the raised edges which separate the flutings in a ...

  3. Sharpening - Wikipedia

    en.wikipedia.org/wiki/Sharpening

    Sharpening these implements can be expressed as the creation of two intersecting planes which produce an edge that is sharp enough to cut through the target material. For example, the blade of a steel knife is ground to a bevel so that the two sides of the blade meet. This edge is then refined by honing until the blade is capable of cutting.

  4. Blencathra - Wikipedia

    en.wikipedia.org/wiki/Blencathra

    Blencathra is a popular mountain, and there are many different routes to the summit. One of the most famous is via Sharp Edge, a knife-edged arête on the eastern side of the mountain. Sharp Edge provides some good scrambling for those with a head for heights. Hall's Fell ridge, on Blencathra's southern flank, also provides an opportunity for ...

  5. Knife sharpening - Wikipedia

    en.wikipedia.org/wiki/Knife_sharpening

    Edge of a knife after sharpening and stropping. Although this edge is sharp enough to bite a thumbnail, cut paper smoothly, or shave arm hair, the microscope plainly shows an edge which reflects light back into the lens. A truly sharp edge is too thin to reflect significant light.

  6. Sharpness (cutting) - Wikipedia

    en.wikipedia.org/wiki/Sharpness_(cutting)

    Sharpened metal drop-point blade Naturally occurring sharp obsidian piece Shark tooth with a sharp, serrated edge A sewing needle comes to a sharp point. Sharpness refers to the ability of a blade, point, or cutting implement to cut through materials with minimal force, and can more specifically be defined as the capacity of a surface to initiate the cut. [1]

  7. Chamfer - Wikipedia

    en.wikipedia.org/wiki/Chamfer

    In machining a chamfer is a slope cut at any right-angled edge of a workpiece, e.g. holes; the ends of rods, bolts, and pins; the corners of the long-edges of plates; any other place where two surfaces meet at a sharp angle. Chamfering eases assembly, e.g. the insertion of bolts into holes, or nuts.

  8. Kutta condition - Wikipedia

    en.wikipedia.org/wiki/Kutta_condition

    A body with a sharp trailing edge which is moving through a fluid will create about itself a circulation of sufficient strength to hold the rear stagnation point at the trailing edge. In fluid flow around a body with a sharp corner, the Kutta condition refers to the flow pattern in which fluid approaches the corner from above and below, meets ...

  9. Glossary of woodworking - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_woodworking

    A sharp-pointed hand tool used to mark wood for cutting, usually used in joinery or when a more precise mark is needed beyond that provided by a pencil or other method of marking the cut. scribing. Also called coping. The technique of shaping the end of a moulding or frame component to neatly fit the contours of an abutting member. scroll saw