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They have swords of this kind – of wood made like a two-handed sword, but with the hilt not so long; about three fingers in breadth. The edges are grooved, and in the grooves they insert stone knives, that cut like a Toledo blade. I saw one day an Indian fighting with a mounted man, and the Indian gave the horse of his antagonist such a blow ...
A diamond blade grinds, rather than cuts, through material. Blades typically have rectangular teeth (segments) which contain diamond crystals embedded throughout the segment for grinding through very hard materials. The bond is a term used for the softness or hardness of the powder metal being used to form the segments. The powdered metals hold ...
Diamond knife blade. A diamond knife is a very sharp knife in which the edge is made from diamond, invented by Humberto Fernández-Morán in 1955. [1] [2] Diamond knives are used for medical and scientific applications where an extremely sharp and long-lasting edge is essential. The knives are very expensive to purchase, depending on the ...
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]
Later depictions often show it as a combination of a sword and sickle, and this odd interpretation is explicitly described in the 2nd century Leucippe and Clitophon. [3] The image of Perseus shown with the sword is considered a modern representation by Benvenuto Cellini, an Italian sculptor and goldsmith. In ancient representation, the harpe ...
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In nature, serration is commonly seen in the cutting edge on the teeth of some species, usually sharks.However, it also appears on non-cutting surfaces, for example, in botany where a toothed leaf margin or other plant part, such as the edge of a carnation petal, is described as being serrated.