what is the defenition of a nuclear bomb?

Answer 1

http://en.wikipedia.org/wiki/Nuclear_weapon

Answer 2

E=MC2 thats the equation but the difenition is In a nuclear bomb there is a globe made of plutonium-239 or uranium-235. In this globe there is a neutron source which only effective when the TNT (trinitrotoluene) exploses. Because of the compression of the explosion the critical mass of the split material is overstepped. There are nuclear bomb which are build otherwise, but the princip is always the same. This both materials are very expensive, because on earth we find very little plutonium so it means that we must produce plutonium. To produce plutonium it is necessary to bombard the natural and very cheap uranium-238 with neutrons to make uranium-239. Uranium-239 decays to neptunium-239 and neptunium-239 decays after a certain time to plutonium-239. You can find uranium-235 in nature, but only in uranium-238. To split this uranium-235 from uranium-238 is very expensive, because their chemical properties are the same so it is not possible to split them in a chemical way. A nuclear bomb like this can have an explosion force of 20 kilotons (20000 tons). This means that an explosion of such a bomb is as effective as the explosion of 20 kilotons of TNT.


Hydrogen bombs can reach an explosion force of 20 megatons (20 million tons). This bombs are also knows as three-phase fuzes. The fission like in a nuclear bomb is only the first phase. In the second phase there is a fusion between deutrium and tritium. The temperatur in the second phase behave 200 to 300 million degrees celsius (much hoter than the core of the sun). The third phase is the fission of uranium-238 which is of the outer side of the bomb. Under this conditions the fission of uranium-238 is possible. The princip of power plants is the same like in nuclear bombs, but without using TNT. The reason why nuclear power plants do not exploses is that there are control rods to control the number of the neutrons in the reactor. This is a controlled nuclear chain reaction in the opposite of an uncontrolled nuclear chain reaction in nuclear bombs. The nuclear power plants in the future will be fusion reactors which do not crack heavy atomic nucleus, but fuses light atomic nucleus. Fusion are today possible but energy which you need for a fusion is higher than the energy you get and this is not the sense of nuclear fusions. With fusions the last elements of the "Periodic table of the elements" have been created, because their are not on earth. In 1999 a few physicists thought that they have discovered the element 118 but two years later in 2001 they said that it was a mistake, so element 114 is the last know element. In stars there are also fusions. In our sun it is the proton proton cycle which you can find on the website of astronomy and astrophysics. Now I will give an answer why we get energy from this nuclear reactions. We must begin which Einstein's famous formula: E=mc2 (E stands for energy, m stands for mass and c stands for the speed of light in the vacuum). This formula makes it possible transform masse in energy. Atomic nucleus have got different binding energy. The binding energy is the energy which holds the nucleons together. Because of this fact there is in every atomic nucleus a mass defect. A free proton and a free neutrons weighs more than deutrium (heavy hydrgen, consists of one proton and one neutron). Iron has got the highest binding energy and stands in the middle of the "Periodic table of the elements". When somebody goes closer to this middle with fissions or fusions a part will be transformed into energy. Was that helpful

Answer 3

A neuclear Bomb is the one designed to kill at least 5 million people at one go in just over 16 minutes, and designed to screw up our eco system for the next 36 years,

It is a weapon which if Amercia uses is a way to stop wars
and if somebodyelse uses, is a rouge or a terrorist state,

Answer 4

Bomb that explodes due to the mammoth heat/ energy generated due to Nuclear fission.

Answer 5

Nuclear bomb- Death all over the place.

Answer 6

The release of energy cause by uranium or plutonium isotopes being bombarded by the nuetrons....or as they say,.....contolled fission.

Answer 7

which utilizes fission or fusion reaction for explosion