Contact: Jason Socrates Bardi
American Institute of Physics
Caption: Researchers created microscopic cubes, pyramids, half soccer-ball-shaped bowls and long triangular Toblerone-like structures, all of which fold themselves when wetted by a drop of water.
Credit: A. Legrain, et. al, University of Twente
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Related news release: Just add water: 3-D silicon shapes fold themselves when wetted by microscopic droplets