The Fine Structure Constant (often denoted as α) is a fundamental dimensionless constant in physics that characterizes the strength of electromagnetic interactions. Its approximate value is 1/137, and it plays a crucial role in determining the behavior of particles like electrons and photons. This constant helps explain the fine structure of atomic spectra, which refers to the small splittings in the energy levels of atoms. The Fine Structure Constant is significant in various areas of physics, including quantum mechanics and electrodynamics. It connects the properties of fundamental forces and particles, influencing theories such as quantum electrodynamics and the Standard Model of particle physics. Understanding α helps scientists explore the underlying principles of the universe.