Previous Thread
Next Thread
Print Thread
Rate This Thread
Hop To
#4482822 - 07/14/19 10:51 PM Rare Sperm Whale Encounter with ROV  
Joined: May 2005
Posts: 8,502
Blade_RJ Offline
Simhq Weather man, dropping rain in your parade
Blade_RJ  Offline
Simhq Weather man, dropping rain in your parade
Hotshot

Joined: May 2005
Posts: 8,502
brasil
amazing


Inline advert (2nd and 3rd post)

#4482848 - 07/15/19 02:20 AM Re: Rare Sperm Whale Encounter with ROV [Re: Blade_RJ]  
Joined: Apr 2013
Posts: 1,167
Blade_Meister Online biggrin
Member
Blade_Meister  Online Biggrin
Member

Joined: Apr 2013
Posts: 1,167
Atlanta, GA, USA
1,962 ft, how does the pressure of the water not crush him/her? That was awesome, thanks Blade_RJ.

S!Blade<><

#4482902 - 07/15/19 03:48 PM Re: Rare Sperm Whale Encounter with ROV [Re: Blade_RJ]  
Joined: Sep 2009
Posts: 1,168
vonBaur Offline
Member
vonBaur  Offline
Member

Joined: Sep 2009
Posts: 1,168
Very cool!
clapping


SALUTE TO ALL!
#4482941 - 07/15/19 07:22 PM Re: Rare Sperm Whale Encounter with ROV [Re: Blade_Meister]  
Joined: Jan 2006
Posts: 3,601
Mr_Blastman Offline
Senior Member
Mr_Blastman  Offline
Senior Member

Joined: Jan 2006
Posts: 3,601
Atlanta, GA
Originally Posted by Blade_Meister
1,962 ft, how does the pressure of the water not crush him/her? That was awesome, thanks Blade_RJ.

S!Blade<><


Has to do with the density of the body versus the density of water. Since we're 70% water, and that whale is likely as much or more, for the most part regular tissue is fine even at that depth. What does compress, however, are the lungs--which can compress significantly, and in whales, completely due to their flexible rib cages, whereas ours cannot, thus the next point: narcosis. Narcosis is nitrogen being squeezed into the blood which has a debilitating narcotic effect, which can cause hallucinations or even death in a human. Whales, on the other hand, collapse their lungs entirely thus preventing this issue. The following passage might be helpful:

Quote

The organ that is most susceptible to compression damage is the lung. Deep diving whales and seals have reinforced airways that allow the lungs to collapse during the dive, preventing damage. The collapse forces the air away from the alveoli (where the gas exchange between the lungs and blood occurs). To stop this gas exchange is important for the body as it prevent a high nitrogen blood lever to occur. “What is the problem with high blood nitrogen level?” When the level of the nitrogen is high it can give a narcotic effect (nitrogen narcosis) and the animals can start acting intoxicated. It can also create a nitrogen bubble if the animal is swimming too fast towards the surface. This bubble can appear anywhere in the body and gives decompression sickness or “the bends”. Collapsing of the lung is the only way the deep diving animals can protect themselves from these two issues.
A problem that occurs with the collapsed lung is the oxygen exchange. Since the lungs can no longer store oxygen deep diving animals need to rely on the oxygen stored in their blood and muscles. They have had several adaptations to support this. First, animals have a large volume of blood up to 4 times higher than human. Second, their concentration of hemoglobin (the oxygen transport protein in blood) is about two times higher than in humans. Third, the concentration of myoglobin (the protein that stores the oxygen in muscles) is extremely high, about 10 times higher than in human.


https://oceanadventures.co.za/can-whales-seals-deep-diving/

https://en.wikipedia.org/wiki/Nitrogen_narcosis

Think of a ship sinking. If the ship sinks with all the hatches closed and sealed, and retains air, eventually it will hit a "crush depth" where the structure crinkles and ruptures, releasing oxygen due to being unable to withstand further compression. Next, think of a sinking ship that fills up with fluid completely while on the surface. If you were to examine this structure on the ocean bottom, aside from the initial impact with the ocean floor, would largely be intact and unaltered because of the internal pressure being the same as external pressure due to them both being full of water. We're the same way, being made mostly of water, and due to the fact that water in large withstands compression.


I happen to have studied this for one of the sci-fi novels I have written, so hope this helps!

Last edited by Mr_Blastman; 07/15/19 07:26 PM.
#4482957 - 07/15/19 10:47 PM Re: Rare Sperm Whale Encounter with ROV [Re: Blade_RJ]  
Joined: Jan 2001
Posts: 8,994
KraziKanuK Online content
Hotshot
KraziKanuK  Online Content
Hotshot

Joined: Jan 2001
Posts: 8,994
Ottawa Canada
Your example of the ship sinking MR_Blastman is the conclusion reached for the sinking of the Bismarck. There is no doubt it would have eventually sunk but the German sailors quickened the sinking by opened up the ship and it filled with water.

The videoing of the whale is fantastic but some of the comments... rolleyes dizzy banghead


There was only 16 squadrons of RAF fighters that used 100 octane during the BoB.
The Fw190A could not fly with the outer cannon removed.
There was no Fw190A-8s flying with the JGs in 1945.
#4482961 - 07/15/19 10:58 PM Re: Rare Sperm Whale Encounter with ROV [Re: Blade_RJ]  
Joined: Jan 2006
Posts: 3,601
Mr_Blastman Offline
Senior Member
Mr_Blastman  Offline
Senior Member

Joined: Jan 2006
Posts: 3,601
Atlanta, GA
I fail to see how my point is incorrect KanuK.

A submarine will crush at depth due to extreme pressures, however, if the submarine was completely filled with water, it likely would not. Everyone would be dead from drowning, but that's another issue... The only question here is why aren't the whales crushed.

Edit, Here's a link saying the same thing different ways:

http://scienceline.ucsb.edu/getkey.php?key=685

Last edited by Mr_Blastman; 07/15/19 11:10 PM.
#4482972 - 07/16/19 12:22 AM Re: Rare Sperm Whale Encounter with ROV [Re: Blade_RJ]  
Joined: Jan 2001
Posts: 8,994
KraziKanuK Online content
Hotshot
KraziKanuK  Online Content
Hotshot

Joined: Jan 2001
Posts: 8,994
Ottawa Canada
I was agreeing with you. .


There was only 16 squadrons of RAF fighters that used 100 octane during the BoB.
The Fw190A could not fly with the outer cannon removed.
There was no Fw190A-8s flying with the JGs in 1945.
#4482974 - 07/16/19 12:31 AM Re: Rare Sperm Whale Encounter with ROV [Re: Blade_RJ]  
Joined: Jan 2006
Posts: 3,601
Mr_Blastman Offline
Senior Member
Mr_Blastman  Offline
Senior Member

Joined: Jan 2006
Posts: 3,601
Atlanta, GA
Oh okay, my bad. I was confused by the emoticons. =)

#4482976 - 07/16/19 12:42 AM Re: Rare Sperm Whale Encounter with ROV [Re: Mr_Blastman]  
Joined: Apr 2013
Posts: 910
Zamzow Offline
Member
Zamzow  Offline
Member

Joined: Apr 2013
Posts: 910
Originally Posted by Mr_Blastman
Originally Posted by Blade_Meister
1,962 ft, how does the pressure of the water not crush him/her? That was awesome, thanks Blade_RJ.

S!Blade<><


Has to do with the density of the body versus the density of water. Since we're 70% water, and that whale is likely as much or more,


That would be incorrect - fat is the only tissue (at least in mammals, and I'm not sure about hair) that is less dense than water. And marine mammals have the highest body fat percentages of any mammals (barring cases of individual obesity). The Blue Whale holds the record at around 35% body fat.

HOWEVER, I would imagine that fat is very nearly (if not equally even) as incompressible as water...


Moderated by  RacerGT 

Quick Search
Recent Articles
Support SimHQ

If you shop on Amazon use this Amazon link to support SimHQ
.
Social


Recent Topics
Peter Fonda passed at 79
by rwatson. 08/17/19 01:41 AM
Those "Beyond Burgers"
by PanzerMeyer. 08/16/19 10:39 AM
Isn't this just a bit silly?
by Nixer. 08/15/19 11:31 PM
What3words
by RedToo. 08/15/19 05:05 PM
USS Yorktown
by JohnnyChemo. 08/14/19 08:35 PM
Final Request
by Bill_Grant. 08/14/19 01:49 PM
Hi-Res Audio
by Red2112. 08/13/19 05:31 PM
Online gaming buddies
by PanzerMeyer. 08/13/19 05:08 PM
Epic browser
by Chef. 08/13/19 04:35 PM
"deep fake" video
by Tom_Weiss. 08/13/19 11:57 AM
Copyright 1997-2016, SimHQ Inc. All Rights Reserved.

Powered by UBB.threads™ PHP Forum Software 7.6.0