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Physical Review E
When a very flexible wire is dipped into a soapy solution, it collapses onto itself. We consider the regions of high curvature where the wire folds back onto itself, enclosing a capillary film. The shapes of these end loops are measured in experiments using soap films and compared to a known similarity solution. The sizes of these structures provide a simple and reliable way to measure surface tension.doi:10.1103/physreve.86.026119 pmid:23005837 fatcat:wobkw6g4krdenf6bsvh2zmnooy