Uploaded August 2025 | Updated September 2026, 1 week ago

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Instead of relying on their muscles, rice-sized water striders use surface tension and elastic forces to morph the ribbon-shaped fans on the end of their legs to slice the water surface and change directions.

More: https://coe.gatech.edu/news/2025/08/tiny-fans-water-bugs-could-lead-energy-efficient-mini-robots