fissile wood

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• fissile — adjective Etymology: Latin fissilis, from findere Date: 1661 1. capable of being split or divided in the direction of the grain or along natural planes of cleavage < fissile wood > < fissile crystals > 2. capable of undergoing fission • fissility …   New Collegiate Dictionary

• Fissile — Fis sile, a. [L. fissilis, fr. fissus, p. p. of findere to split. See {Fissure}.] 1. Capable of being split, cleft, or divided in the direction of the grain, like wood, or along natural planes of cleavage, like crystals. [1913 Webster] This… …   The Collaborative International Dictionary of English

• nuclear weapon — an explosive device whose destructive potential derives from the release of energy that accompanies the splitting or combining of atomic nuclei. [1945 50] * * * or atomic weapon or thermonuclear weapon Bomb or other warhead that derives its force …   Universalium

• Uranium — (pronEng|jʊˈreɪniəm) is a silvery gray metallic chemical element in the actinide series of the periodic table that has the symbol U and atomic number 92. It has 92 protons and 92 electrons, 6 of them valence electrons. It can have between 141 and …   Wikipedia

• Criticality accident — …   Wikipedia

• Nuclear criticality safety — is a field of nuclear engineering dedicated to the prevention of nuclear and radiation accidents resulting from an inadvertent, self sustaining nuclear chain reaction.[1] Additionally, nuclear criticality safety is concerned with mitigating the… …   Wikipedia

• Nuclear reactor — Core of CROCUS, a small nuclear reactor used for research at the EPFL in Switzerland This article is a subarticle of Nuclear power. A nuclear reactor is a device to initiate and control a sustained nuclear chain reaction. Most commonly they are… …   Wikipedia

• Réacteur à onde progressive — Simulation numérique d un réacteur à onde progressive. Rouge: U 238, Vert: Pu 239, Bleu: Zone de forte densité de neutrons Un réacteur à onde progressive est un réacteur nucléaire particulier qui convertit un isotope fertile en isotope fissile… …   Wikipédia en Français

• Nuclear reactor technology — This article is a subarticle of Nuclear power .A nuclear reactor is a device in which nuclear chain reactions are initiated, controlled, and sustained at a steady rate, as opposed to a nuclear bomb, in which the chain reaction occurs in a… …   Wikipedia

• Fuel — For other uses, see Fuel (disambiguation). Wood was one of the first fuels used by humans and is still the primary energy source in much of the world.[citation needed] Fuel is any material that stores …   Wikipedia

• Radioactive waste — 2007 ISO radioactivity danger logo, designed in part for long term radioactive waste depositories which might survive into a far future time in which all knowledge of the meaning of present common radiation danger symbols and signs has been lost… …   Wikipedia