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Re: FW: The "ideal" Eumaniraptoran arm motion

In a message dated 3/1/99 10:04:52 PM EST, jeffmartz@earthlink.net writes:

<< "Aerodynamic drag" of wing feathers is what allows birds to propel
themselves by flapping, and they can do it considerably faster then I can clap
two pieces of cardboard together. >>

I believe the term is "aerodynamic lift," not "aerodynamic drag."