2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/197544Non-orientable spaces can appear to carry net magnetic charge, even in the absence of magnetic sources. It is shown that this effect can be understood as a physical manifestation of the existence of torsion cycles of codimension one in the homology of space.17 pages, 4 figuresHigh Energy Physics - Theorytext