normal sharpening
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T-Blades — are a recent development made by a German company to be an alternative to traditional steel blades found on hockey skates. They are sold on top end Hockey Skates such as CCM s Vectors and Pro Tacks and Graf Skates or can be installed onto any… … Wikipedia
Kitchen knife — A kitchen knife is any knife that is intended to be used in food preparation. While much of this work can be accomplished with a few general purpose knives – notably a large chef s knife, a tough cleaver, and a small paring knife – there are also … Wikipedia
dinosaur — /duy neuh sawr /, n. 1. any chiefly terrestrial, herbivorous or carnivorous reptile of the extinct orders Saurischia and Ornithischia, from the Mesozoic Era, certain species of which are the largest known land animals. 2. something that is… … Universalium
Depth of field — The area within the depth of field appears sharp, while the areas in front of and beyond the depth of field appear blurry … Wikipedia
Pencil sharpener — A pencil sharpener (also referred to as pencil parer) is a device for sharpening a pencil s point by shaving one end. Pencil sharpeners exist in both electric and hand powered forms.HistoryPencils were in use before the development of devices… … Wikipedia
Differential geometry of surfaces — Carl Friedrich Gauss in 1828 In mathematics, the differential geometry of surfaces deals with smooth surfaces with various additional structures, most often, a Riemannian metric. Surfaces have been extensively studied from various perspectives:… … Wikipedia
eye, human — ▪ anatomy Introduction specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit The eye is protected from mechanical injury… … Universalium
ear, human — ▪ anatomy Introduction organ of hearing and equilibrium that detects and analyzes noises by transduction (or the conversion of sound waves into electrochemical impulses) and maintains the sense of balance (equilibrium). The human ear, like … Universalium
optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… … Universalium
Kukri — For the genus of snakes having the common name khukuri snakes, see oligodon. Kukri A polished presentational Kukri Type Knife Pl … Wikipedia
Synthetic aperture radar — (SAR) is a form of radar in which the highly directional (and thus very large) rotating antenna used by conventional radar is replaced with many low directivity small stationary antenna positions scattered over some area near or around the target … Wikipedia
