Fusion mechanics refers to the scientific principles and processes involved in the fusion of atomic nuclei. This phenomenon occurs when two light atomic nuclei combine to form a heavier nucleus, releasing a significant amount of energy in the process. Fusion is the same reaction that powers stars, including our Sun, and is a potential source of clean energy on Earth. In controlled environments, such as in nuclear fusion reactors, scientists aim to replicate these conditions to harness fusion energy for electricity generation. Achieving the necessary temperature and pressure for fusion requires advanced technology, including magnetic confinement systems like tokamaks and inertial confinement methods.