A whale of a tale

A local company has designed a new type of wind-turbine blade that mimics the aerodynamic performance of a humpback whale’s flipper, allowing a turbine to capture more of the wind’s energy at much lower speeds.
The odd-looking blades, which have teeth-like bumps along their leading edge, are a dramatic departure from the smooth and sleek design that graces most wind turbines.
But Stephen Dewar, co-founder of Toronto-based WhalePower Corp., says the new approach could have a profound impact on wind-energy economics.
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