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Author Topic:   What drove bird evolution?
crashfrog
Member (Idle past 1488 days)
Posts: 19762
From: Silver Spring, MD
Joined: 03-20-2003


Message 115 of 145 (125324)
07-17-2004 7:41 PM
Reply to: Message 114 by redwolf
07-17-2004 7:31 PM


The tendons would have to be attached to a bone spur ten or twelve feet over the top of the dinosaur's shoulder for that to work.
Somebody's been watching too much Flintstones. Sauropods aren't cranes; unlike the cranes they had no need to cantilever enormous loads at the end of their necks, so they wouldn't need a "10 to 12 foot spur."
The bony crest that they did have would have been more than sufficient:

This message is a reply to:
 Message 114 by redwolf, posted 07-17-2004 7:31 PM redwolf has replied

Replies to this message:
 Message 117 by redwolf, posted 07-17-2004 11:57 PM crashfrog has replied

  
crashfrog
Member (Idle past 1488 days)
Posts: 19762
From: Silver Spring, MD
Joined: 03-20-2003


Message 119 of 145 (125366)
07-18-2004 1:00 AM
Reply to: Message 117 by redwolf
07-17-2004 11:57 PM


That's too much torque.
What, says you? As the man said:
quote:
Once somebody's been shown to be an ideologue and a liar, you don't have to go on checking his pronouncements...
Boring, RW. If all you have are empty pronouncements that "it simply can't be so!", all you've done is present a cynical argument from personal incredulity.

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crashfrog
Member (Idle past 1488 days)
Posts: 19762
From: Silver Spring, MD
Joined: 03-20-2003


Message 128 of 145 (125435)
07-18-2004 10:18 AM
Reply to: Message 121 by redwolf
07-18-2004 1:40 AM


That would be the maximum combined total torque of all four engines of an Iowa class battleship.
Here's that crane again, handling torque loads hundreds of thousands of times greater than the sauropod:
Can you show me, on that crane, where the thousands of Iowa-class battleship engines are located? Because I can't seem to find them, but your argument insists that they must be there.

This message is a reply to:
 Message 121 by redwolf, posted 07-18-2004 1:40 AM redwolf has replied

Replies to this message:
 Message 130 by redwolf, posted 07-18-2004 1:37 PM crashfrog has replied

  
crashfrog
Member (Idle past 1488 days)
Posts: 19762
From: Silver Spring, MD
Joined: 03-20-2003


Message 132 of 145 (125481)
07-18-2004 4:24 PM
Reply to: Message 130 by redwolf
07-18-2004 1:37 PM


One word: irrelevant.
You mean, your claim about sauropod torque loads and Iowa-class battleship engines? Yes, given that the sauropod neck handled torque loads in the exact same way the modern skycrane does, I would indeed say your claim was irrelevant. That was the purpose of my example.
But it's good to see you agree. Now can we drop this ridiculous gravity fiction?

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crashfrog
Member (Idle past 1488 days)
Posts: 19762
From: Silver Spring, MD
Joined: 03-20-2003


Message 134 of 145 (125492)
07-18-2004 5:35 PM
Reply to: Message 133 by redwolf
07-18-2004 4:59 PM


The crane is irrelevant because it is supported by cables anchored at a point substantially higher than the body of the crane itself, and no animal has a neck which is built like that.
An assertion contradicted by a number of skeletons shown to you so far. The sauropod's arched back provides a more than high enough anchor point for the torque loads experienced by the neck, and the tail provides the same counterbalance that the skycrane uses.
Boring, RW. If you can't do anything but repeat already-rebuked assertions, why do you even post here?

This message is a reply to:
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Replies to this message:
 Message 135 by NosyNed, posted 07-18-2004 5:49 PM crashfrog has not replied

  
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