A nuclear bomb, also known as an atomic bomb or nuclear weapon, relies on the process of nuclear fission to release a massive amount of energy. Here's a simplified explanation of how it works: 1. **Fissionable Material**: Nuclear bombs use fissile materials like uranium-235 (U-235) or plutonium-239 (Pu-239). These materials can undergo a chain reaction of nuclear fission. 2. **Critical Mass**: To initiate a nuclear explosion, a sufficient amount of fissile material, known as the "critical mass,"