otto105
Diamond Member
- Sep 11, 2017
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HilariousWhat do flying dinosaurs tell us about Earth climate change?
"If you allow yourself to entertain the idea that a higher atmospheric pressure, say between 3 and 5 bar, could have existed in the time of the dinosaurs, it would resolve two of the anomalies that face us today, which are:
1. how a dinosaur’s heart could pump blood 7 or more meters upwards, without introducing the ideas of multiple hearts (as many as 8), giant hearts, and hearts located right under their chins, and
2. how a giant flying quetzalcoatlus had the energy to stay airborne, something that biology and aerodynamics says is not possible in today’s atmosphere. "
Translation - if you did Jurassic Park and put a live quetzalcoatlus outside, and it flapped its wings, it wouldn't get off the ground. It needs at least triple today's surface air pressure SAP to get off the ground....
"then the giant flying creatures of the dinosaur age could only fly if the atmospheric pressure was much higher than it is now: at least 3.7–5.0 bar."
Understanding Flight and the Paradox of Flying Pterosaurs
Today there are no flying reptiles. Yet during the Mesozoic era there were gigantic flying reptiles that were much larger than any bird flying today. It would be nice if we could plug data into an aerodynamic equation to tell us if this is or is not a scientific paradox, yet until now there...www.dinosaurtheory.com
"This is not a close call - pterosaurs could not have flown in today's atmospheric environment."
Now, how could Earth SAP go up 3-5+ fold?
A 15-20F increase in temperature doesn't come close to that, less than 1 fold.
The answer is that the atmosphere had much more gas in it then than it does now, more than double+. Now, what happened to that gas?
Jurassic - Wikipedia
en.wikipedia.org
"The climate of the Jurassic was warmer than the present, and there were no ice caps"
meaning there was little to no land near the poles. Today we have 9 million cubic miles of ice, 90% on AA which is 2.5 miles thick.
For every foot of snow, you get 1 inch of water and 11 inches of air. Every year, continent specific ice ages on Greenland and AA grow another ice layer, the ice cores prove it. Bury that foot of snow under a mile of ice and it gets compressed to a tiny fraction of a centimeter. But the air is still there. Melt that ice and the air comes back into atmosphere.
There is more air trapped in AA's ice than there is in the atmosphere now. The 2.7 million years of ice core data didn't go down a full mile. Do the math. The ice core layers get to 1/100th of an inch...
GoogAI
"Scientists from Princeton University and other institutions recovered a record-shattering, 2.7-million-year-old ice core from the "blue ice" region of the Allan Hills in Antarctica."
and that's the real truth about "Jurassic Park." If you did put a live Jurassic dinosaur outside, it would be like putting you halfway up Mt Everest....
Climate toddler just watched jurassic Park for the first time
