2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/40503It is shown that a fermion mass matrix changing in orientation (rotating) with changing scales can give a simple yet near-quantitative explanation for quark mixing, neutrino oscillations and the fermion mass hierarchy.14 pages, Latex, 3 figures using eps, minor changesHigh Energy Physics - PhenomenologyFermion Mixing and Mass Hierarchy as Consequences of Mass Matrix Rotationtext