2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/84539This two-part article considers certain fundamental symmetries of nature, namely the discrete symmetries of parity (P), charge conjugation (C) and time reversal (T), and their possible violation. Recent experimental results are discussed in some depth. In this second part, we discussion CP and $T$ violation and arrive at a synthesis.13 pages Latex, using macros myown.sty and axodraw.sty, to appear in "Resonance", Journal of Science EducationPopular PhysicsPhysics Educationtext