Airplanes of the Future Could Be Fitted With Feather-Like Flaps
Research suggests that free-moving panels on aircraft wings can improve stability, reduce turbulence, and add fuel efficiency ...
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A comparison of bat and bird wings reveals their evolutionary paths are vastly different
Researchers may have just found the answer: Unlike birds, the evolution of bats' wings and legs is tightly coupled, which may have prevented them from filling as many ecological niches as birds.