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KAIST finds way to control gravity-driven instability in liquid films
Michelangelo had to battle paint dripping onto his face while painting the Sistine Chapel ceiling, calling it closer to torture than painting. KAIST researchers said they developed a way to hold up such falling liquid. The team reinterpreted gravity-driven instability in a hanging liquid film and proposed controlling it by mixing a small amount of volatile liquid. Evaporation creates surface tension differences, generating Marangoni flow that suppresses instability, experiments showed.
