This is a version of the video showing baroclinic instability (11 RPM) in our paper "Low-cost table-top experiments for teaching multi-scale geophysical fluid dynamics" published in Frontiers in Marine Science (doi: 10.3389\fmars.2023.1192056).
This video shows bubble tornadoes formed in our DIYnamics HT3 rotary table. By dropping Alka-Seltzer tablets into a fluid in rigid-body rotation, we create tornado-like vortices. These impressively stunning vortices are visible in the form of helical spiraling bubble columns.
