
The amount of substance essential to trigg! er a chain chemical reaction is known as the critical mass (Stephens ,189-240There ar two types of chain reactions controlled and unbridled controlled reactions argon when the released neutrons thr wholeness only produce fission with one more nucleus , this type of reactions take place in power plants for nuclear energy (Stephens , 156-165 , while the uncontrolled reactions are when there is no control on the number of fission reactions that take place one after another and as a result an explosion occurs with enormous amounts of energy released lavish to create catastrophes such as the devastation of Hiroshima and Nagasaki this type of reaction takes place in the nuclear technology involved in warfare such as the nuclear bombFission and the weapon raceThe interposition for the fission research was laid down by Rutherford after the conclusions drawn by of his famous gold foil decide . He achieved the artificial disintegration of nucleus by bombarding chief(prenominal) p articles on a thin gold foil (Boon , 56-77 , this was taken forward by numerous physicists somewhat the universe of colloquy and it came to the level when Hungarian scientist Leo Szilard found out that bombarding a nucleus with a neutron can start a reaction that can be used in developing weapons of mass destructionAt this meter several political changes were taking place around the world especially in Europe , as Hitler became the chancellor of Germany many Jewish scientists fled their country and took asylum in the U .S . or U .K , the tensions grew and Hitler invaded Poland in 1939 igniting the World War II at...If you demand to get a full essay, order it on our website: OrderCustomPaper.com
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