2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/40717It is shown that Feynman's derivation of Maxwell equations admits a generalization to the case of extra spatial dimensions. The generalization is unique and is only possible in seven dimensional space.15 pages, LaTeX. New reference is added. To be published in the special issue "Contemporary Electrodynamics" of the Journal "Annales de Fondation Louis de Broglie"High Energy Physics - PhenomenologyHigh Energy Physics - Theorytext