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Sharpness refers to the ability of a blade 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] Sharpness depends on factors such as the edge angle, edge width, and the fineness of the cutting edge, and is aided by material hardness.
The field test was performed to examine the qualities of each knife based on the following criteria: the ability to carry one-handed while performing other tasks, the quickness or rapidity of employment in action, security of grip, in case the user was stunned or knocked unconscious, ease of carrying when crawling in a low prone position, the ...
The Tueller Drill is a self-defense training exercise to prepare against a short-range knife or melee attack when armed only with a holstered handgun.. Sergeant Dennis Tueller of the Salt Lake City Police Department wondered how quickly an attacker with a knife, or other melee weapon, could cover 21 feet (6.4 m), so he timed volunteers as they raced to stab the target.
Knife sharpening is the process of making a knife or similar tool sharp by grinding against a hard, rough surface, typically a stone, [1] or a flexible surface with hard particles, such as sandpaper. Additionally, a leather razor strop , or strop, is often used to straighten and polish an edge.
John Tukey expanded on the technique in 1958 and proposed the name "jackknife" because, like a physical jack-knife (a compact folding knife), it is a rough-and-ready tool that can improvise a solution for a variety of problems even though specific problems may be more efficiently solved with a purpose-designed tool. [2]
The American Bladesmith Society, or ABS, is a non-profit organization composed of knifemakers whose primary function is to promote the techniques of forging steel blades.The ABS was founded by knifemaker William F. Moran, who came up with the concept in 1972 when he was Chairman of the Knifemakers' Guild; the following year, he introduced Damascus steel blades at an annual show.
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The kris is believed to have the ability to infuse bravery upon its holder: this property is known as piyandel in Javanese which means "to add self-confidence". The pusaka kris or kris-tipped spear given by a Javanese king to nobles or his subjects, was meant to symbolize the king's confidence bestowed upon the receiver and is considered a ...