%0 Journal Article %T Student-level numerical simulation of conditions inside an exploding fission-bomb core %A Bruce Cameron Reed %J Natural Science %P 139-144 %@ 2150-4105 %D 2010 %I Scientific Research Publishing %R 10.4236/ns.2010.23023 %X This paper describes a freely-available spread-sheet that has been developed to simulate the conditions of reaction rate, core acceleration and velocity, energy generation, and pressure within a detonating fission-bomb core. When applied to a model of the Hiroshima Little Boy bomb, the spreadsheet predicts a yield of 12.7 kilotons, a figure in reasonable agreement with published values. %K Nuclear Weapons %K Numerical Simulation %K Fission %K Little Boy %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=1559