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Re: Phylogeny of Maniraptora

On Fri, Jun 06, 2003 at 07:57:00AM -0700, James R. Cunningham scripsit:
> Graydon wrote:
> > I think the whole glide/flap for power thing gets tangled in this; an
> > organism doing attitude control and fall-retarding things *isn't*
> > gliding, it's parachuting, and it'll do whatever it takes to get its
> > attitude on impact right, because it has to get it right.
> I've got a dumb question.

I think you mis-spelled 'difficult'.

> When the Concorde is landing, generating extremely high CL by vortex
> lift over its delta wings at high AOA -- by your definition, is it
> flying, or parachuting?

Flying, because it's energy stored internally to get its lift.

oak@uniserve.com | Uton we hycgan    hwaer we ham agen,
                 | ond thonne gedhencan    he we thider cumen.
                 |   -- The Seafarer, ll. 117-118.