What are neulear reactor?

Nuclear reactors are facilities that use controlled nuclear fission reactions to generate heat, which is then converted into electricity. In the reactor, fuel, typically uranium-235 or plutonium-239, undergoes fission when bombarded by neutrons, releasing a significant amount of energy. This heat is used to produce steam, which drives turbines connected to electricity generators. Safety systems are crucial in reactors to prevent accidents and manage radioactive materials.