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A variety of rulers A carpenter's rule Retractable flexible rule or tape measure A closeup of a steel ruler A ruler in combination with a letter scale. A ruler, sometimes called a rule, scale or a line gauge or metre/meter stick, is an instrument used to make length measurements, whereby a length is read from a series of markings called "rules" along an edge of the device. [1]
The International System of Units, internationally known by the abbreviation SI (from French Système international d'unités), is the modern form of the metric system and the world's most widely used system of measurement.
In metrology, measurement uncertainty is the expression of the statistical dispersion of the values attributed to a quantity measured on an interval or ratio scale.. All measurements are subject to uncertainty and a measurement result is complete only when it is accompanied by a statement of the associated uncertainty, such as the standard deviation.
Particle size analysis, particle size measurement, or simply particle sizing, is the collective name of the technical procedures, or laboratory techniques which determines the size range, and/or the average, or mean size of the particles in a powder or liquid sample.
Textile fibers, threads, yarns and fabrics are measured in a multiplicity of units.. A fiber, a single filament of natural material, such as cotton, linen or wool, or artificial material such as nylon, polyester, metal or mineral fiber, or human-made cellulosic fibre like viscose, Modal, Lyocell or other rayon fiber is measured in terms of linear mass density, the weight of a given length of ...
Albert Einstein (/ ˈ aɪ n s t aɪ n /, EYEN-styne; [4] German: [ˈalbɛʁt ˈʔaɪnʃtaɪn] ⓘ; 14 March 1879 – 18 April 1955) was a German-born theoretical physicist who is best known for developing the theory of relativity.
Lolicon is a Japanese abbreviation of "Lolita complex" (ロリータ・コンプレックス, rorīta konpurekkusu), [5] an English-language phrase derived from Vladimir Nabokov's novel Lolita (1955) and introduced to Japan in Russell Trainer's The Lolita Complex (1966, translated 1969), [6] a work of pop psychology in which it is used to denote attraction to pubescent and pre-pubescent girls. [7]
Sinterklaas (Dutch: [ˌsɪntərˈklaːs] ⓘ) or Sint-Nicolaas (Dutch: [sɪnt ˈnikoːlaːs] ⓘ) is a legendary figure based on Saint Nicholas, patron saint of children.Other Dutch names for the figure include De Sint ("The Saint"), De Goede Sint ("The Good Saint") and De Goedheiligman ("The Good Holy Man").