Humpback Whales: The Original Wing DesignersWhy rough edges outperform smooth ones in physics

From the show

Nature Solved It First

Humpback whales defy aerodynamic logic by using bumpy fins to move more efficiently through water. This phenomenon, known as the tubercle effect, increases lift and prevents stalling at steep angles. Engineers are now applying this biological insight to wind turbines and industrial fans. The result is a new generation of machines that are significantly quieter and more effective.