Editat Mar 7 apr 2009 23:16
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Început de Observ, Joi 10 ian 2008 · 110 răspunsuri · 18.980 vizualizări
Sa va simtiti bine, dragilor!
week-end placut!"
e un ascunzis, impatureste dezamagire si efort de bine, fara succes, de altfel...
( vezi ca n-ai tinut ritmul jocului cu descrieri)
PunkY StylE a scris:( vezi ca n-ai tinut ritmul jocului cu descrieri)
P-asta o stiu 
Many contemporary uses of uranium exploit its unique nuclear properties. Uranium-235 has the distinction of being the only naturally occurring fissile isotope. Uranium-238 is both fissionable by fast neutrons, and fertile (capable of being transmuted to fissile plutonium-239 in a nuclear reactor). An artificial fissile isotope, uranium-233, can be produced from natural thorium and is also important in nuclear technology. While uranium-238 has a small probability to fission spontaneously or when bombarded with fast neutrons, the much higher probability of uranium-235 and to a lesser degree uranium-233 to fission when bombarded with slow neutrons generates the heat in nuclear reactors used as a source of power, and provides the fissile material for nuclear weapons.
chip and dale
All video about chip and dale lovely and cute-W-
nici ea
prelegeri

