The Cross Heads

Cheerios effect inspires novel robot design

There’s a common popular science demonstration involving “soap boats,” in which liquid soap poured onto the surface of water creates a propulsive flow driven by gradients in surface tension. But it doesn’t last very long since the soapy surfactants rapidly saturate the water surface, eliminating that surface tension. Using ethanol to create similar “cocktail boats” […]

December 3, 2024 | 3D printing, active matter, Cheerios effect, fluid dynamics, Marangoni effect, Physics, Robotics, Science | No comments

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