Water droplets bouncing off super-hydrophobic surfaces
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The most waterproof material ever?

US engineers have created "the most water-resistant material ever" - inspired by tiny structures on nasturtium leaves and butterfly wings.

Using high-speed cameras, they filmed droplets bouncing off different "super-hydrophobic" surfaces - to see how quickly they repelled liquid.

They found that adding "macroscopic" textures to the surface made the water rebound faster - by splitting it into several droplets instead of one.

The team from Massachusetts Institute of Technology (MIT) hope their design will inspire new waterproof clothing and "anti-freeze" materials for aircraft engines.

Video: James C Bird, Rajeev Dhiman, Hyuk-Min Kwon, Kripa K Varanasi, MIT.

  • 21 Nov 2013