This allowed us to compare directly the fission observables of both macroscopic and microscopic calculations, and we found almost identical results under the conditions considered in this work. Key Words: Uranium - Einstein equation - fission - pressure vessel -containment building - energy source - fuel rods - moderator - control rods - primary. Each time a U-235 nucleus splits, it releases two or three neutrons. Interpolating the microscopic transport coefficients among the various temperatures enabled our Langevin equation to use the microscopic transport coefficients at a deformation-dependent local temperature of the dynamical evolution. In contrast, the Coulomb kinetic energy increases as the temperature increases. The prescission kinetic energy decreases from 25 MeV at low temperature to about 2.5 MeV at high temperature. This temperature dependence brings a noticeable change in the mass distribution and kinetic energies of fission fragments from nuclei around U 236 at an excitation energy of 20 MeV. It can only occur when a slow moving neutron strikes an unstable nucleus. Nuclear Fission Very large nuclei (mass number greater than 230) tend to be unstable and can split into two or more parts. We found that the microscopic transport coefficients, calculated by linear response theory, change drastically as a function of temperature: in general, the friction increases with growing temperature while the mass tensor decreases. This equation is key to the power of nuclear weapons and nuclear reactors. Nuclear fission is treated by using the Langevin dynamical description with macroscopic and microscopic transport coefficients (mass and friction tensors), and it is elucidated how the microscopic (shell and pairing) effects in the transport coefficients, especially their dependence on temperature, affects various fission observables.