[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: The origin of flight: from the water up
In a message dated Mon, 25 Mar 2002 5:44:55 AM Eastern Standard Time, "David
Marjanovic" <email@example.com> writes:
> > If flapping only destabilizes a glider, then why do
> > birds flap, glide for a distance, then flap again?
> > Wouldn't that cause problems for them? And yet many
> > birds of prey do this. [...] Call it the "undulatory
> > origin of powered flight" if you will.
> And in
> the non-flapping phases songbirds at least don't glide, they simply tuck in
> their wings and fall.
Try watching a starling sometime.