An ab initio scrutiny of the structure and genesis of the electromagnetic radiation (EMR) and a close look into its rare ‘materialization’ to produce a pair of electron (e-) and positron (e+), coupled with the examination of the relationships among their various dynamic parameters, have revealed that just like torque (F x r), angular momentum (mv x r), and spin (m0c x r), the charge interaction (Epot x r) also has a cross product relation between the potential energy and the lever arm of the interacting particles. Further, it has been found that the EM frames of photons and leptons, herein called the ‘Energetic Capsules’, have higher energy with respect to the zero-energy state of the vacuum, determined by the quantum relations: E = ħc/r (photons) and E0 = ħc/2r (leptons). This means that the inner and surface energy potential of these ‘Energetic Capsules’ is higher than that of the normal vacuum and their charge interaction is given by ħc = ie2, the square of the intrinsic charge (ie). Consequently, the ‘Close Contact’ or Strong Force interactions of these ‘Energetic Capsules’ should reflect this difference, when compared with their long-range interactions through the free space / vacuum. Therefore, as the elementary charge interaction (in vacuum) is given by e2, while the ‘Close Contact’ strong force interactions correspond to ħc, the ratio between these two parameters provides the value of alpha, α = e2/ħc = 1/137, which resolves the century-old enigma of the Electromagnetic Coupling Constant.