A photon is postulated to be a wavetrain having a coherence length equal to one wavelength. The wavepulse is analyzed for a unified flux distribution, in its own inertial frame, based on the symmetric addition to the Poynting-Heaviside energy vector S of a gravitational cross product, as an alternative to that first proposed by Heaviside. From the mutual restoring force of the cross products a relativistic medium emerges, wherein there is no string, presenting an alternative to string/M-theory. Maple 10 is used to analyze the symmetric three dimensional electric, magnetic, and gravitational flux distribution of the quantum on a similar basis to static charged rest mass electron-proton flux distributions in their own inertial frame. Eddington's detection of the deflection of light by the sun, and Tolman's detection of a gravitational component to electromagnetic radiation, previously attributed to spacetime curvature, are re-interpreted. The quantum's spacecurve flux distribution is shown in pair production to gain a spin moment, an added degree of freedom, through the interaction with the field of a nuclei, enabling the spherical expansion of the quantum into the electron and positron flux configurations. Please download the .zip file to get both worksheets for this application.