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- Path: sparky!uunet!psinntp!dg-rtp!sheol!throopw
- From: throopw@sheol.UUCP (Wayne Throop)
- Newsgroups: talk.origins
- Subject: Holden, Kazmaier and the sauropod
- Summary: review of Ted's summary
- Message-ID: <725051587@sheol.UUCP>
- Date: 22 Dec 92 16:48:19 GMT
- References: <179@fedfil.UUCP>
- Lines: 96
-
- : From: news@fedfil.UUCP (news) (Ted Holden)
- : Message-ID: <179@fedfil.UUCP>
- : I've given more than relevent comment to this bullshit...
- : I've demolished it.
-
- Ted has indeed responded in the past. But his "demolition" is irrelevant.
- Ted has made a good summary of his points here, so I'll show specifically
- why each isn't related to the points Ted is trying to establish.
-
- : Most of body weight on Kazmaier is muscle;
-
- Ted's own sources show that muscle mass is irrelevant to how much
- force the muscles can apply. Only cross section is. Further, all the
- muscle mass in Kazmaier's upper body is used in series instead of
- in parallel with that in his lower body for the lift Ted uses as
- a benchmark, and so is irrelevant to the issue.
-
- : Structurally, any juxtaposed photo will show Kaz to have thicker limbs
- : than the saur. Any difference in leverage would favor him.
-
- I don't think so, as pictures I tried don't show this. Reference a
- picture of Kazmaier I'd likely to be able to find in a university
- library, or email me a GIF of Kazmaier and I'll rethink. But even so,
- this is irrelevant as regards leverage, because leverage is roughly
- proportional to BONE thickness (specifically proportional joint
- thickness), not gross limb thickness.
-
- : five-second deal for Kaz. The brontosaur walked around with a
- : 70,000 lb load all day long.
-
- This is irrelevant, because again Ted's own sources show that endurance
- does not scale square-cube, but with volume. Elephants and sauropods
- are nowhere near an endurance limit, even if they were near a force
- limit. (This again reflects Ted's normal confusion between energy,
- force, mass, weight, and so on.)
-
- In this regard, the point about muscle mass proportion Ted makes above
- might be relevant. But unfortunately, when you work out the volumes
- available, you find no problem with endurance. Ted, of course, likes
- to make his claims without doing specific calculations (with, to be
- fair, the notable exception of his calculations of square-cube
- scaling (though he applies it incorrectly)).
-
- : For the ultrasaur, the load was more like
- : 360,000 lbs, and that's a documented fact.
-
- No, it's a documented guess, based on a vertebra or two and a shoulder
- blade. The best experts on the subject disagree with so large a mass
- estimate, as I've shown by excerpts from the recent book
- _Kings_of_Creation_. And even if the 360,000 guess is accurate, the
- calculations I posted based on actual measurements show sauropods
- wouldn't run into strength-related problems until 5 or 6 hundred
- thousand pounds mass. So again, the 360,000 lbs is irrelevant.
-
- : there is little if any difference between muscle tissue from
- : any two vertibrates, and that it all looks nearly alike under microscopes.
-
- True, but irrelevant, since I never claimed there was such a difference.
-
- : I have shown that if scaled to 70,000 lbs,
- : He'd be pinned to the ground by our gravity.
-
- True, but irrelevant, since Kazmaier isn't the same shape as sauropods.
-
- : There is no 350 lb creature which eats leaves and low value food which comes
- : remotely close to being as strong or having anything like the lifting abilities
- : which Kaz has. Candidates would include hogs, and certain members of the
- : goat and deer families, possibly. Put a 1000 lb weight on top of any such
- : creature and watch what happens.
-
- Candidates for matching sauropod performance would NOT include goats, stoats,
- dogs, hogs, horses, gnus, shrews, tapirs, nine-banded armadillos, or
- even Tazmanian Devils. The reason is simple: their bones and muscles
- aren't configured to be a proportional-sized sauropod.
-
- Ted's point here is simply irrelevant. When you scale the performance
- of animals to sauropod sizes, you run into no problems IF you account
- for the changing cross section and leverage as observed across all four
- footed animals. For popular accounts of these sorts of effects, see
- _The_Mechanics_of_Dinosaurs_and_other_Extinct_Giants_ by Alexander for
- some details. Also the inter-species vs intra-species scaling examples
- in Gould's _Bully_for_Brontosaurus_.
-
- : What Throop is claiming requires the saur to be the stronger of the
- : two, by more than a two-to-one ratio, at the same size. I claim that is
- : obviously and patently absurd, and I'm willing to rest my case this one.
- : Anybody wishing to believe Throop on this may feel free.
-
- "Look at my client, members of the jury. Does he LOOK like the sort
- of fellow who would rob a convenience store?" Sorry, I'll go with
- objective measurements and calculations any day over how something
- looks in a picture.
-
- So, basically, Ted is resting his case on facts irrelevant to the case.
- --
- Wayne Throop ...!mcnc!dg-rtp!sheol!throopw
-