2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/100961Can you fill R^n with a froth of "soap bubbles" that meet at most n at a time? Not if they have bounded diameter, as follows from Lebesgue's Covering Theorem. We provide some related results and conjectures.9 pages, 5 figures, better proof of Prop 2.4. To appear in Amer. Math. MonthlyDifferential Geometry49Q25; 54F45text