Dinosaur Turkeys
POSTED BY: JEWELSTAITEFAN
UPDATED: Monday, May 27, 2024 15:41
VIEWED: 4571
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https://peerj.com/articles/3420/
Investigating the running abilities of Tyrannosaurus rex using stress-constrained multibody dynamic analysis
Abstract
The running ability of Tyrannosaurus rex has been intensively studied due to its relevance to interpretations of feeding behaviour and the biomechanics of scaling in giant predatory dinosaurs. Different studies using differing methodologies have produced a very wide range of top speed estimates and there is therefore a need to develop techniques that can improve these predictions. Here we present a new approach that combines two separate biomechanical techniques (multibody dynamic analysis and skeletal stress analysis) to demonstrate that true running gaits would probably lead to unacceptably high skeletal loads in T. rex. Combining these two approaches reduces the high-level of uncertainty in previous predictions associated with unknown soft tissue parameters in dinosaurs, and demonstrates that the relatively long limb segments of T. rex—long argued to indicate competent running ability—would actually have mechanically limited this species to walking gaits. Being limited to walking speeds contradicts arguments of high-speed pursuit predation for the largest bipedal dinosaurs like T. rex, and demonstrates the power of multiphysics approaches for locomotor reconstructions of extinct animals.
Trump is not the problem. He set himself against the Deep State's agenda. And the Deep State's been heading for WWIII for years.
As for you, you're just a Deep State useful idiot, furthering its agenda. So I hope you enjoy cesium in your coffee. You've earned it.
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Dinosaur Turkeys is redundant.
Fathom the hypocrisy of a government that requires every citizen to prove they are insured... but not everyone must prove they are a citizen
I'm just a red pill guy in a room full of blue pill addicts.
" AU, that was great, LOL!! " - Chrisisall
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I was thinking Sue was from the 90's. I've known a few people working that one.
The last year or maybe 2 I've been hearing about new species found, quite a bit I thought. But for 10 or 20 years it seemed I wasn't hearing much about big finds, or new species, or new locations - maybe the news was just too filtered, I've lost my gurus of the geologic digs.
I did take advantage of the Jurassic Park craze, which was actually preceeded (for kids) by Barney. And now perhaps the generation which were kids then have now sprouted into adult successes in archaeology. I recall T-Rex was orinth family, but were brontosaur as well? I forget the details now.
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Quote:
Originally posted by JEWELSTAITEFAN:
I was thinking Sue was from the 90's. I've known a few people working that one.
The last year or maybe 2 I've been hearing about new species found, quite a bit I thought. But for 10 or 20 years it seemed I wasn't hearing much about big finds, or new species, or new locations - maybe the news was just too filtered, I've lost my gurus of the geologic digs.
I did take advantage of the Jurassic Park craze, which was actually preceeded (for kids) by Barney. And now perhaps the generation which were kids then have now sprouted into adult successes in archaeology. I recall T-Rex was orinth family, but were brontosaur as well? I forget the details now.
News is always coming, but you just have to go looking for it. Thankfully, the internets is a great tool in helping do just that. No need to wait until Time or some big news outlet DECIDES that this or that is " newsworthy " for the public to hear... I have my browser to highlight certain topics, ' Dinosaurs 'being one of them, and then there's great stuff like TED talks, if you're willing to spend a few minutes checking out the YouTubes.
" Gurus " of Paleontology ... Mine are Robert Bakker, Jack Horner, Phil Currie, although they're getting up in age now. Paul Sereno is more of a 'today's ' cool fossil guy, sort of a cross between Indiana Jones and the late Steve Irwin. There are more, of course, but that's a good starting point for what to keep up with in the field.
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I meant my personal gurus, people I knew who were doing the actual digging, or were Professors in between their digs.
Some of them have passed on now.
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Quote:
Originally posted by JEWELSTAITEFAN:
I meant my personal gurus, people I knew who were doing the actual digging, or were Professors in between their digs.
Some of them have passed on now.
All I listed do dig , or did... you're so into the field you know some personally? Cool. I've met Dr Bakker & he signed a couple of books to me, but that's about it for me.
Fathom the hypocrisy of a government that requires every citizen to prove they are insured... but not everyone must prove they are a citizen
I'm just a red pill guy in a room full of blue pill addicts.
" AU, that was great, LOL!! " - Chrisisall
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Quote:I have not dug myself, but my cousins have. And another one was a Prof who gave a special behind-the-scenes (or display) tour, handing out actual real dino bones (mostly just fragments) to all the kids who showed up for the tour. This was in the mid-90s, when the fad was big.
Originally posted by AURaptor:Quote:
Originally posted by JEWELSTAITEFAN:
I meant my personal gurus, people I knew who were doing the actual digging, or were Professors in between their digs.
Some of them have passed on now.
All I listed do dig , or did... you're so into the field you know some personally? Cool. I've met Dr Bakker & he signed a couple of books to me, but that's about it for me.
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Oh cool ! I got to go behind the scenes at the Field Museum , when I went to go visit Sue. Saw the Beetle room...and some other cool stuff. Soooo many incredible items they have behind the curtain.
Thought about digging, but knowing me, I'd either really really get into it, or very much not like it. Pretty sure in an alternate universe, I was / am a full time paleo guy. But not here. Oh well.
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And Giant Sloth found in Mexico.
http://news.nationalgeographic.com/2017/08/ancient-giant-sloth-new-spe
cies-mexico-cave-spd/
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