Geometry and topology of single cells pressure gives you everything for dry liquid foams; assumptions for mass transport outside the bubbles mensicus, and how this goes between wet and dry limit don't have a lot on the standard model of ostwald ripening; more known about the dry limit bidisperse Weaire-Phelan - competition between volumes and topology Do the PBs dominate or the thin films? Dimensionality? Statistics -> self similar state Lifshitz theory for Ostwald ripening Assumptions on real foams: experiments/simulations Does curvature influence coarsening? Without a theory it is difficult to know what to plot against growth rate after experiments. Walls (liquid and solid) -> how do they change coarsening? propagation of defects in a perfect hex foam in 2D - explored by Earnshaw, Sire ... Coarsening in wet foams - theory? Geometry of individual cells during coarsening, can you predict a self-similar growth regime?