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Jousting is a medieval and renaissance martial game or hastilude between two combatants either on horse or on foot. [1] The joust became an iconic characteristic of the knight in Romantic medievalism.
Archaeologists define a chopper as a pebble tool with an irregular cutting edge formed through the removal of flakes from one side of a stone. Choppers are crude forms of stone tool and are found in industries as early as the Lower Palaeolithic from around 2.5 million years ago.
Visual glossary of Japanese sword terms. Japanese swordsmithing is the labour-intensive bladesmithing process developed in Japan beginning in the sixth century for forging traditionally made bladed weapons [1] [2] including katana, wakizashi, tantō, yari, naginata, nagamaki, tachi, nodachi, ōdachi, kodachi, and ya.
A jigsaw is a reciprocating saw that can cut irregular curves, such as stenciled designs, in wood, metal, or other materials. Jigsaws first emerged in the 19th century [1] and employed a treadle to operate the blade, which was thin and under tension, being secured at both ends to an oscillating frame. This kind of saw is now usually called a ...
Guillotine cutting is the process of producing small rectangular items of fixed dimensions from a given large rectangular sheet, using only guillotine-cuts. A guillotine-cut (also called an edge-to-edge cut) is a straight bisecting line going from one edge of an existing rectangle to the opposite edge, similarly to a paper guillotine.
Blanking is a punching operation in which the entire periphery is cut out and the cutout portion required is known as STAMP or BLANK. When a component is produced with one single punch and die where the entire outer profile is cut in a single stroke the tool is called a blanking tool. Blanking is the operation of cutting flat shapes from sheet ...
A diagram of a katana and koshirae with components identified. Fuchi (縁): The fuchi is a hilt collar between the tsuka and the tsuba.; Habaki (鎺): The habaki is a wedge-shaped metal collar used to keep the sword from falling out of the saya and to support the fittings below; fitted at the ha-machi and mune-machi which precede the nakago.
Additionally, variants where the shapes are circular or even irregular have been studied. In the latter case, it is referred to as irregular strip packing. Dimension: When not mentioned differently, the strip packing problem is a 2-dimensional problem. However, it also has been studied in three or even more dimensions.