To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S5. Acoustic jet streaming. The fin structure disturbs the streamlines and creates an asymmetric net flux that allows unidirectional propulsion. Acoustically powered surface-slipping mobile microrobots Amirreza Aghakhani, Oncay Yasa, Paul Wrede, and Metin Sitti PNAS. 2020. 117:3469-3477 DOI: 10.1073/pnas.1920099117 Download Original Video Browse All Videos »