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Self-Healing Aeroplane Wings Will Make Flights Safer
"We took inspiration from the human body," Professor Wass said. "We've not evolved to withstand any damage - if we were like that we'd have a skin as thick as a rhinoceros - but if we do get damaged, we bleed, and it scabs and heals. We just put that same sort of function into a synthetic material: let's have something that can heal itself."

Image Source: abc.net.au