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In nuclear physics and nuclear chemistry , nuclear fission is a nuclear reaction or a radioactive decay process in which the nucleus of an atom splits into two or more smaller, lighter nuclei. The fission process often produces gamma photons , and releases a very large amount of energy even by the energetic standards of radioactive decay. Nuclear fission of heavy elements was discovered on December 17, by German Otto Hahn and his assistant Fritz Strassmann at the suggestion of Austrian-Swedish physicist Lise Meitner who explained it theoretically in January along with her nephew Otto Robert Frisch. Frisch named the process by analogy with biological fission of living cells. For heavy nuclides , it is an exothermic reaction which can release large amounts of energy both as electromagnetic radiation and as kinetic energy of the fragments heating the bulk material where fission takes place.
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Roosevelt University is a private, nonsectarian community of educators, scholars, and learners committed to academic, creative, and service excellence. We value differences in personal experiences and perspectives, ask the difficult questions, and promote mutual understanding, inclusion, social consciousness, and action toward social justice. We believe that difference broadens perspectives and seek and serve a diverse, promising student body from metropolitan Chicago and around the world. Faculty members are dedicated to excellence in teaching, research, and creative activity, and staff members are equally focused on helping students grow and achieve their educational and life goals.
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Se produce la muerte del feto. Se puede codificar como una enfermedad o como un procedimiento aborto provocado legal. Es estimulante de la corteza suprarrenal.
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Enriched uranium is a type of uranium in which the percent composition of uranium written U has been increased through the process of isotope separation. Naturally occurring uranium is composed of three major isotopes: uranium U with Enriched uranium is a critical component for both civil nuclear power generation and military nuclear weapons. The International Atomic Energy Agency attempts to monitor and control enriched uranium supplies and processes in its efforts to ensure nuclear power generation safety and curb nuclear weapons proliferation. There are about 2, tonnes t, Mg of highly enriched uranium in the world, [3] produced mostly for nuclear power , nuclear weapons, naval propulsion , and smaller quantities for research reactors.
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