Dutch artist Theo Jansen's 'strandbeesten' or Beach Beasts, wind-powered creatures made from yellow plastic tubes, are displayed during an exhibit in Delft, Netherlands, Thursday, June 5, 2025.

Becher, Lia, Amayu W. Gena, Hayder Alsaad, Bernhard Richter, Claudia Spahn, and Conrad Voelker. 2021. “The Spread of Breathing Air from Wind Instruments and Singers Using Schlieren Techniques.” ...