Light is produced when an underwater bubble collapses with a sound wave. This phenomenon is called sonoluminescence, and it was first documented in the mid-1930s. https://t.co/GKvRQlkoMy https://video.twimg.com/ext_tw_video/1772432095547101184/pu/vid/avc1/1006x720/czzyLrusy9RcFvIK.mp4?tag=12