nuclear weapons
Nuclear weapons are weapons capable of mass destruction. They are powered by two reactions, fission and fusion. These weapons produce massive explosions and hazardous radioactive products. Some miniaturized tactical weapons have the force of a kiloton of TNT. While other strategic weapons create thousands of kilotons of force. However, only two nuclear bombs have been used in actual warfare. The Atomic Bomb and the Hydrogen Bomb. Nuclear fission is the splitting of an atom into two or more parts. When such an occurrence takes place, a very large amount of energy is released. This can occur very quickly as in an atomic bomb, or in a more controlled manner allowing the energy to be captured for useful purposes. Only a few naturally occurring substances are easily fissionable. These include uranium-235 and plutonium-239, two isotopes of uranium and plutonium. Isotopes are forms of the same chemical element that have the same number of protons in their nuclei, but a different number of neutrons. Starting a fission reaction is accomplished by bombarding fissionable nuclei with neutrons. This causes the nuclei to fly apart, splitting into two fission products and emitting two or three neutron
The Hydrogen Bomb weapon deriving a large portion of its energy from the nuclear fusion of hydrogen isotopes. In simpler terms it is LiH surrounded by an Atom Bomb which is surrounded by TNT. , was required to obtain sufficient amounts of the two necessary isotopes, uranium-235 and plutonium-239. Her conclusion, from experimental research in bombarding the uranium nucleus with slow-speed neutrons, that fission of the nucleus had occurred, contributed to the development of the Atom Bomb. of California and the California Institute of Technology and was from 1947 director of the Institute for Advanced Study at Princeton. government of the danger threatening the world if the Nazis should be the first to make a nuclear bomb (The Century). The development of the atomic bomb was based on this work.
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