Experiment room with very small soap bubbles

Experiment room with very small soap bubbles
Experiment room with very small soap bubbles
To create the test set-up, an experimental space measuring 12 cubic metres was flooded with small soap bubbles the size of sugar grains (diameter approximately 350 micrometres). Filled with a mix of helium and air, the bubbles remain suspended for longer periods and follow the complex flow field in the test room.