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Stabila Messgeräte Gustav Ullrich GmbH is a company based in Annweiler am Trifels, Rhineland-Palatinate, Germany, that has been manufacturing measuring tools since 1889. [2] It is one of the world's leading companies in the field of spirit levels , folding rules , and electronic measurement technology. [ 3 ]
A tubular spirit level A bull's eye spirit level mounted in a camera tripod. A spirit level, bubble level, or simply a level, is an instrument designed to indicate whether a surface is horizontal (level) or vertical . Two basic designs exist: tubular (or linear) and bull's eye (or circular).
Level of measurement or scale of measure is a classification that describes the nature of information within the values assigned to variables. [1] Psychologist Stanley Smith Stevens developed the best-known classification with four levels, or scales, of measurement: nominal , ordinal , interval , and ratio .
(see Level of measurement) [11] He is the author of the operational theory of measurement, which “...in the broadest sense, is defined as the assignment of numerals to objects or events according to rules.” [12] In fact, the definition paraphrased Campbell's note from the Final Report of the so-called Ferguson's committee (joint committee ...
Metrology is defined by the International Bureau of Weights and Measures (BIPM) as "the science of measurement, embracing both experimental and theoretical determinations at any level of uncertainty in any field of science and technology". [15] It establishes a common understanding of units, crucial to human activity. [2]
Kim Kardashian is swearing off roasts for good.. On Thursday's episode of "The Kar d ashians," the Skims founder opened up about being loudly booed at Netflix's Tom Brady roast last year. "I would ...