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A macuahuitl ([maːˈkʷawit͡ɬ]) is a weapon, a wooden sword with several embedded obsidian blades. The name is derived from the Nahuatl language and means "hand-wood". [2] Its sides are embedded with prismatic blades traditionally made from obsidian, which is capable of producing an edge sharper than high quality steel razor blades. The ...
Wazamono (Japanese: 業 （ わざ ） 物 （ もの ）) is a Japanese term that, in a literal sense, refers to an instrument that plays as it should; in the context of Japanese swords and sword collecting, wazamono denotes any sword with a sharp edge that has been tested to cut well, usually by professional sword appraisers via the art of tameshigiri (test cutting).
A partially hollow blade (1 ⁄ 2 or 1 ⁄ 4 for example) cannot sustain the same degree of sharpness for as long, because as the cutting edge erodes it can eventually reach the stabilising ridge faster where there is more material and thus the cutting-edge bevel cannot be maintained without excessive honing of the stabilising ridge to remove ...
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]
The angle between the blade and the stone is the edge angle – the angle from the vertical to one of the knife edges, and equals the angle at which the blade is held. The total angle from one side to the other is called the included angle – on a symmetric double-ground edge (a wedge shape), the angle from one edge to the other is thus twice ...
A modern double-edge safety razor and blade. The term safety razor was first used in 1880 [15] and described a basic razor with a handle attached to a head where a removable blade may be placed. The edge was then protected by a comb patterned on the head to protect the skin. In the more modern-day produced safety razors, the comb is now more ...
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Mournblade – An enchanted blade from Michael Moorcock's Elric stories, twin to Stormbringer. Kanajana – The sword of Erekose. The Runestaff – A magical staff in Moorcock's Dorian Hawkmoon novels which preserves the Cosmic Balance. Stormbringer – One of the two vampiric black runeswords inherited by the Melnibonean kings.