Are Flexible, Flapping Flying Machines in our Future?

Modern aircraft have been fabulously successful with rigid wings and rotors. But just imagine the flying machines that would be possible if we could understand and harness the most efficient and acrobatic airfoils in nature: the flexible wings of the bat.

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<p><a href="http://www.physorg.com/news146335017.html">Are Flexible, Flapping Flying Machines in our Future?</a></p> <p>Modern aircraft have been fabulously successful with rigid wings and rotors. But just imagine the flying machines that would be possible if we could understand and harness the most efficient and acrobatic airfoils in nature: the flexible wings of the bat. </p>