The chaotic interior of a soap bubble displays surprising fluid dynamics Saptarshi Basu @indian_institute_of_science in Bengaluru and his colleagues blew soap bubbles with air containing droplets of olive oil. They then shined a laser sheet through the bubbles which lit up the olive oil particles, allowing them to record the flow of air with a high-speed camera. Basu and his team found that, contrary to the chaotic processes that they were expecting, the bubble’s characteristics as it inflated f