radiation decomposition
81Organically moderated and cooled reactor — The organic moderated and cooled reactor (OCR) was an early power reactor concept studied in the formative years of nuclear power by the United States Atomic Energy Commission and others around the world. The concept reactor was very similar to… …
82Boron — (pronEng|ˈbɔərɒn) is a chemical element with atomic number 5 and the chemical symbol B. Boron is a trivalent nonmetallic element which occurs abundantly in the evaporite ores borax and ulexite. Boron is never found as a free element on… …
83John von Neumann — Von Neumann redirects here. For other uses, see Von Neumann (disambiguation). The native form of this personal name is Neumann János. This article uses the Western name order. John von Neumann …
84Unruh effect — The Unruh effect (or sometimes Fulling–Davies–Unruh effect), was first described by Stephen Fulling in 1973, Paul Davies in 1975 and Bill Unruh in 1976.[1][2][3] It is the prediction that an accelerating observer will observe black body radiation …
85Structure formation — refers to a fundamental problem in physical cosmology. The universe, as is now known from observations of the cosmic microwave background radiation, began in a hot, dense, nearly uniform state approximately 13.7 Gyr ago. [cite journal |author=D.… …
86Colonization of the outer Solar System — Space colonization Solar System Inner Mercury Venus Earth Moon Lagrange points Mars Phobos Deimos Asteroids Ceres Outer Jupiter Io …
87Electromagnetic wave equation — The electromagnetic wave equation is a second order partial differential equation that describes the propagation of electromagnetic waves through a medium or in a vacuum. The homogeneous form of the equation, written in terms of either the… …
88biosphere — biospheric /buy euh sfer ik/, adj. /buy euh sfear /, n. 1. the part of the earth s crust, waters, and atmosphere that supports life. 2. the ecosystem comprising the entire earth and the living organisms that inhabit it. [1895 1900; < G Biosphäre; …
89Actinide — The atomic bomb dropped on Nagasaki had a plutonium charge.[1] The actinide or actinoid (IUPAC nomenclature) series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium thro …
90Formation des structures — La formation des structures est le processus primordial de genèse des structures observables dans le ciel actuel à partir d un état dense, chaud et surtout quasiment uniforme[1]. Comprendre ce passage de l homogène et uniforme à une grande… …
