IEEE Spectrum | Water-Vortex Suction Device @ieeespectrum | Uploaded January 2020 | Updated October 2024, 8 hours ago.
A spinning ring of water allows this robot to stick to rough surfaces

Learn more: spectrum.ieee.org/water-vortex-suction-feet-help-this-hexapod-sploosh-up-walls

This video is part of “Vacuum suction unit based on the zero pressure difference method,” by Kaige Shi and Xin Li from Zhejiang University in China, published in Physics of Fluids 32, 017104 (2020). aip.scitation.org/doi/10.1063/1.5129958

Video courtesy: Physics of Fluids/AIP