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Re: Dinosaur papers in the latest Nature

> Date: Wed, 21 Feb 2001 17:30:06 -0500
> From: "Thomas R. Holtz, Jr." <tholtz@geol.umd.edu>
> Rayfield et al. used the industrial design technique of finite
> element analysis (FEA) to reconstruct the loading forces and
> stresses and so forth in the skull of Big Al [...]  They suggest
> that Big Al employed a high impact bite of great speed rather than a
> prolonged grapple (as might be found in the crushing bite of tyrant
> dinos).

        "Unencumbered with facts as I am, I will comment"
                -- Drew Larson in alt.folklore.computers,
                        now the official Usenet Motto.

OK, I appreciate that I am working in the dark here, but I just can't
see this working.  Basically, it's much more difficult to produce a
large force by impact (when you've got nothing to push against but the
animal you're biting) than in a conventional scissors-type bite, where
each jaw opposes the other.  I hope that the paper covers this and
does the calculations -- if anyone with access would care to
summarise, it would be much appreciated.

BTW., the full text of Erickson's comments can be found at
but the original article doesn't seem to be online.

 _/|_    _______________________________________________________________
/o ) \/  Mike Taylor -- <mirk@mail.org> -- http://www.miketaylor.org.uk/
)_v__/\  "You question the worthiness of my code?  I should kill you
         where you stand!" -- Klingon Programming Mantra