Biomimicry
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Zipp 454 NSW Wheels Take Design Cues From Whales

Zipp 454 NSW Wheels Take Design Cues From Whales | Biomimicry | Scoop.it

"[The new] 454’s wheels feature a lumpy rim profile, called SawTooth, that Zipp claims delivers unrivaled stability in crosswinds while also improving aerodynamics. For the 454, Zipp looked to humpback whales and, specifically, the lumps on the leading edges of their pectoral fins. Called tubercles, these protrusions make humpbacks more agile by keeping water attached to their flippers when they turn. In the same way that a plane can stall when air separates from the wing during high-speed maneuvers, uncontrolled turbulence over a whale’s flipper makes turning more difficult. Tubercles keep the water attached as it flows past. Zipp says its SawTooth tubercles, which the company calls “Hyperfoils,” make deep-section rims more stable in crosswinds by forcing air to slip around and off the rims in a much more predictable manner. 

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How the Blue Whale can teach us about fans, filters and biomimicry

How the Blue Whale can teach us about fans, filters and biomimicry | Biomimicry | Scoop.it

"Whales are some of the most extreme creatures on Earth  The 115 foot, 150 foot ton Blue Whale, for instance, is the largest animal that ever lived. These magnificent creatures are social mammals, descended from an ancient land dweller that also gave rise to the hippopotamus family. Like hippos and humans, they are warm-blooded and air-breathing, and stay with their young, nursing them for an extended period of time. And like us, they maintain complex social networks. As you might imagine, the whale faces some special challenges doing all this in the ocean. As usual, where challenge is extreme, the solutions are efficient. So how can the Blue Whale inspire us today?

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