|Image credit: Elizabeth Hertel / US National Park Service|
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We have probably all seen the sign, “Caution—slippery surface,” and likely experienced the slipperiness of a wet floor firsthand. Not surprisingly, surfaces which repel fluids efficiently are correspondingly slippery, and such surfaces can have many useful applications in industry.To finish reading, slide on over to "Caution—slippery surface".
Vast amounts of money are spent each year in developing materials that are more and more repellent. Researchers have developed materials that are very good at repelling water on its own.
Scientists and design engineers have increasingly been copying designs from nature, in a rapidly growing field known as biomimetics—and surfaces are part of this trend.