a theoretical vertical distribution of the physical properties of the atmosphere up to an altitude of 50 km established by international agreement. It permits the standardization of aircraft instruments and performance of all types of flying vehicles
noun 1. a unique, internationally utilized number code assigned to books for the purposes of identification and inventory control. Abbreviation: ISBN.
noun 1. a unique, internationally agreed upon number code assigned to serial publications, as periodicals and yearbooks, for the purposes of identification and inventory control. Abbreviation: ISSN.
noun 1. the general form of architecture developed in the 1920s and 1930s by Gropius, Le Corbusier, Mies van der Rohe, and others, characterized by simple geometric forms, large untextured, often white, surfaces, large areas of glass, and general use of steel or reinforced concrete construction. 2. (sometimes lowercase) any of various 20th-century styles in […]
noun 1. an internationally accepted coherent system of physical units, derived from the MKSA (meter-kilogram-second-ampere) system, using the meter, kilogram, second, ampere, kelvin, mole, and candela as the basic units (SI units) respectively of the fundamental quantities of length, mass, time, electric current, temperature, amount of substance, and luminous intensity. Abbreviation: SI. International System of […]