Comment Let's Roll (Score 1) 701
Let's Roll
Comment Re:Nothing new (Score 1) 250
...we've had flapping-wing aircraft for three-quarters of a century.
Birds flap their wings with a painfully inefficient reciprocating motion, because nature doesn't know how to make one critical component: a rotating joint. We do, so our wing-flappers flap their wings with nice, efficient rotary motion...and we call them helicopters.
rj
Nature does know how to make a rotating joint. First you evolve humans, then you evolve engineers........
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