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Fw: Campbell's even crazier than a MANIAC? (archeopteryx climbing)




Soaring does not require an updraft. In fact, it is possible to soar in
continuous sink, so long as that sink is variable and the soarer doesn't
mind pulling substantial and sudden negative g's from time to time. (that
said, I don't know of any vertebrates that soar in continuous sink). It is
also possible to soar using horizontal shears, and that is done quite often.
JimC

----- Original Message ----- From: "Dann Pigdon" <dannj@alphalink.com.au>
To: <dinosaur@usc.edu>
Sent: Sunday, September 28, 2008 7:21 PM
Subject: Re: Campbell's even crazier than a MANIAC? (archeopteryx climbing)



> Soaring requires an updraft,