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Home > ISO 3166

ISO 3166 is a three-part geographic coding standard for coding the names of countries and dependent areas, and the principal subdivisions thereof.

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Topics: ISO 3166, Isolated Physical System, Isomer, Isotope,...

Isolated physical systemA physical system is said to be isolated if it does not interact with anything. Isolated physical systems follow a number of conservation laws. As a concrete example, consider the following situation. Suppose you are standing still on the perfectly icy (iIsomerIn chemistry, isomers are molecules with the same chemical formula and often with the same kinds of bonds between atoms, but in which the atoms are arranged differently. Many isomers share similar if not identical properties in most chemical contexts.IsotopeIsotopes are atoms of a chemical element whose nuclei have the same atomic number, Z but different atomic weights, A''. The word isotope meaning at the same place comes from the fact that isotopes are located at the same place on the periodic table. The a
Isomorphism classAn isomorphism class is a collection of mathematical objects isomorphic with a certain mathematical object. A mathematical object usually consists of a set and some mathematical relations and operations defined over this set. Isomorphism classes are oftenIsomorphismIn mathematics, an isomorphism is a kind of interesting mapping between objects. Douglas Hofstadter provides an informal definition: :The word "isomorphism" applies when two complex structures can be mapped onto each other, in such a way that to each partIsotropicIsotropic means "independent of direction". Isotropic radiation has the same intensity regardless of the direction of measurement, and an isotropic field exerts the same action regardless of how the test particle is oriented. Isotropy is also a concept in
ISO 3166ISO 8859-1ISO 8859
ISO 8601IsolationismIsoelectric point
IsotacticISO 9660ISO 216
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