A bubble seen galloping across a containerPedro J. Senz et al. (2025)Bubbles can be made to gallop across the roof of a liquid-filled container simply by shaking it up and down a surprise discovery that could be exploited as a cleaning technique.Pedro J. Senz at the University of North Carolina at Chapel Hill and his colleagues were studying the behaviour of waves in a sealed container using vibrations when they made a chance discovery. The team found that shaking the liquid-filled chamber up and down at particular frequencies caused a bubble that had mistakenly