When a drop hits a viscous liquid film, its kinetic energy can go into spreading, penetrating the film or bouncing back.
Changing the density ratio shifts this balance, revealing new regimes of impact dynamics.
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@leidenforce.bsky.social@leidenforce.bsky.socialHow can a chemical reaction make a liquid surface oscillate?
When 2 reactants meet, they change the #SurfaceTension & create a #Marangoni flow. This motion can become oscillatory, revealing the close link between chemical reactions & #FluidDynamics.