How did dinosaurs stand and how did they pump blood to their heads? How many...

whereismyname
whereismyname

How did dinosaurs stand and how did they pump blood to their heads? How many foot pounds of torque necessary to swing picrelated's noggin around and how did mere biology manage it?

Also how did a 600lb pterosaur fly through the air

Attached: dinosaur-36235-mopik.jpg (597 KB, 1080x1920)

All urls found in this thread:

en.wikipedia.org/wiki/List_of_largest_birds
en.wikipedia.org/wiki/Pterosaur_size
youtube.com/watch?v=Ky7dDUAPpew

Spazyfool
Spazyfool

Also how did a 600lb pterosaur fly through the air

How much does a 747 weigh?

Fried_Sushi
Fried_Sushi

last I checked pterosaurs didn't fly by jet propulsion

Raving_Cute
Raving_Cute

IANA rocket scientist, tho lol!

Lord_Tryzalot
Lord_Tryzalot

an interesting hypothesis is that athmospheric pressure used to be significantly larger but that over time earth's atmosphere eroded due to solar wind

Soft_member
Soft_member

So they could grow larger due to buoyancy? Wouldn't that make the blood-pumping problem worse, though?

Bidwell
Bidwell

no. it wouldn't be possible to pump blood so high in current atmospheric conditions.

Lord_Tryzalot
Lord_Tryzalot

simply swing your head and use the centrifugal forces to force up the blood

farquit
farquit

Magnetosphere prevents that Mars-tier shit.

farquit
farquit

So basically nobody knows and DINOs are a mystery

hairygrape
hairygrape

Their brains were extremely small so didn't require much blood anyway.
Their heads were pretty much just tools for getting food into the stomach.

Methnerd
Methnerd

What about T-Rex? Surely the head of an apex predator in the period with the most highly refined biological killing/eating machines was not merely a chomping implement

CouchChiller
CouchChiller

T-Rex wasn't that vertical.
Plus pic related, with a heart that big you can do a lot of work.

Attached: Trex.jpg (645 KB, 500x7000)

Nojokur
Nojokur

It doesn't change the problem. Small or not they still needed blood, as well as the other tissues.
The argument is still debated today.

Garbage Can Lid
Garbage Can Lid

have you guys ever thought that maybe all their organs was in their head and gravity moved the blood down into their feets??

Boy_vs_Girl
Boy_vs_Girl

The pterosaur used monstrous tendons in their front wings to propel itself high enough to get a good flap (I believe it was 6ft or so)
I saw an awesome program that briefly went over their physiology.

King_Martha
King_Martha

*wings lol sorry I was thinking front legs because they walked on them

Inmate
Inmate

Attached: guys-listen.jpg (158 KB, 816x880)

Deadlyinx
Deadlyinx

Lol

TalkBomber
TalkBomber

That's hilarious

BlogWobbles
BlogWobbles

Big strong heart.

ZeroReborn
ZeroReborn

There were no 600lbs Pterosaurs. Quetzalcoatlus
was like 80kg at most.

FastChef
FastChef

Holy shit you are dumb
The motors are just to give off force forwards, the flying is done by the wings
Google "lift".
You can pretty much throw a passenger plane from high altitude and it would be able to glide and fly by using hot updrafts and their wings

Dreamworx
Dreamworx

Last I checked pterosaurs didn't have rigid, stationary aluminum wings. IANA aircraft engineer, tho lol!

Harmless_Venom
Harmless_Venom

How do albatros and condor fly?
The pretty much do the same shit a pterodactyl would do

girlDog
girlDog

en.wikipedia.org/wiki/List_of_largest_birds
Heaviest flighted bird species are 33-45 lbs max

en.wikipedia.org/wiki/Pterosaur_size
Many pterosaurs were small but the largest had wingspans which exceeded 9 m (30 ft). The largest of these are estimated to have weighed 250 kilograms (550 lb).

A bird's ability to fly is dependent on surface area of the wings much as your ability to breathe is dependent on the surface area of the lungs. Or as your ability to digest food is proportional to the surface area of the digestive system.

As far as I know pterosaur and dinosaur bone composition was not sufficiently different from those of modern vertebrates to account for pterosaur's ability to hold its 60 ft wings straight in the air, let alone maneuvre accounting for centrifugal forces while withstanding the resultant lift without snapping its wings in half

Attached: anhanguera-flying-2.jpg (31 KB, 632x159)

haveahappyday
haveahappyday

not to mention that there would be an inevitable upper limit on bone density, which modern vertebrates are likely near anyway, and extremely dense bones are not even a feature of flighted birds for obvious reasons in the first place. Flexible or possibly cartilaginous bones would not be able to hold the wings straight under the torque produced by flight of such a large body

girlDog
girlDog

Do you have any proof of that or does it just feel wrong to you

SomethingNew
SomethingNew

flying
What about gliding?

Gigastrength
Gigastrength

I haven't done the calculations but applying the basic logic that I layed out above there has to be some mitigating factor that wasn't mention i.e. atmospheric buoyancy, novel bone composition, fluctuating gravity since ancient history, etc

gliding would seem to solve the take-off problem but maneuvering in air and withstanding the lift structurally is still
unsolved

Firespawn
Firespawn

So you have no informed opinion or factual basis, it just feels wrong to you despite experts in the field coming to opposite conclusions.

SniperGod
SniperGod

What conclusions? No one ITT has referenced any expert conclusions and Google is hard

TalkBomber
TalkBomber

Like birds, pterosaurs had hollow bones.

TechHater
TechHater

Wrong.

www.amnh.org/layout/set/amphtml/explore/news-blogs/news-posts/remarkable-fossil-to-be-displayed-in-pterosaurs-exhibition/

Playboyize
Playboyize

There was more oxygen in the atmosphere in the past

Methnerd
Methnerd

How did dinosaurs stand and how did they pump blood to their heads?
It used the Voith turbo retarder clutch VIAB:

youtube.com/watch?v=Ky7dDUAPpew

PackManBrainlure
PackManBrainlure

Dinosaurs never existed moron. It was a way of covering up the nephilim while casting the shadow of doubt over creationism.

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