Bubbles are at the centre of a new scientific investigation around evaporation. The University of Lille, France, created a bubble from a composite liquid film that lasted 465 days before bursting: these stronger bubbles are made from a composite liquid film. Tiny plastic beads are used to reinforce and strengthen the thin film surrounding the air pocket. To study the longevity of these gas balls, the University of Lille team created two types: one using water as a base, the other water-glycerol. Glycerol is a compound found in soap that binds well to water molecules.