2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/202673Many electrical and mechanical systems with two normal modes are appropriate for illustrating the quantum mechanics of neutral kaons. The illustration of CP- or time-reversal-violation in the neutral kaon system by mechanical or electrical analogues is more subtle. Some possibilities which could be realized in a table-top demonstration are suggested.11 pages, latex, 1 uuencoded figure (material and references added)High Energy Physics - Phenomenologytext