quasi-chemical approximation
61List of unusual units of measurement — For units of measure primarily used in countries where English is not the main language, see the article specific to that country, a list of which can be found in the systems of measurement article. An unusual unit of measurement is a unit of… …
62Stellar structure — Stars of different mass and age have varying internal structures. Stellar structure models describe the internal structure of a star in detail and make detailed predictions about the luminosity, the color and the future evolution of the… …
63List of Guggenheim Fellowships awarded in 1999 — U.S. and Canadian Fellows= * Chris Aiken, Choreographer and Dancer, Minneapolis; Teaching Specialist in Theatre Arts and Dance, University of Minnesota: Choreography. * Jonathan Ames, Writer, New York City: Fiction. * Barbara Watson Andaya,… …
64Neutron spin echo — Science with Neutrons Foundations Neutron temperature Flux · Radiation  …
65Графен — Пожалуйста, актуализируйте данные В этой статье данные предоставлены преимущественно за 2007 2008 гг …
66galaxy — /gal euhk see/, n., pl. galaxies. 1. Astron. a. a large system of stars held together by mutual gravitation and isolated from similar systems by vast regions of space. b. (usually cap.) See Milky Way. 2. any large and brilliant or impressive… …
67philosophy, Western — Introduction history of Western philosophy from its development among the ancient Greeks to the present. This article has three basic purposes: (1) to provide an overview of the history of philosophy in the West, (2) to relate… …
68Delta potential — The delta potential is a potential that gives rise to many interesting results in quantum mechanics. It consists of a time independent Schrödinger equation for a particle in a potential well defined by a Dirac delta function in one dimension. For …
