Why sharks can swim so fast? 3D printed artificial shark skin reveals the secret

Scientists from Harvard University have created artificial shark skin using 3D scanning and 3D printing, and they discovered that the remarkable structure can increase shark swimming speeds by 6.6%.

It’s only when you get up close to a shark that you could see the sleek-looking skin is peppered with millions of microscopic overlapping tooth-like scales, called ‚denticles‘. The denticles disrupt the smooth flow of water over the animal’s surface, reducing the drag that holds them back.
(…weiter auf 3ders.org)

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