Uploaded July 2012 | Updated September 2026, 1 week ago

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A dissolving (and evaporating) drop of dichloromethane floating on water containing a surfactant ([CTAB]=1mM). There is NO external intervention; this is spontaneous, selforganized motion! The viewed area is approx. 1 inch wide and the movie plays close to real time.

Reference: onlinelibrary.wiley.com/doi/10.1002/anie.201104261/abstract
(V. Pimienta et al. Angew. Chem. Int. Ed. 50, 10728--10731, 2011).