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Yes it was "The Abyss", see the rat scene: https://www.youtube.com/watch?v=H6hw4dGhm8Y https://www.youtube.com/watch?v=H6hw4dGhm8Y From https://en.wikipedia.or

Yes it was "The Abyss", see the rat scene: https://www.youtube.com/watch?v=H6hw4dGhm8Y https://www.youtube.com/watch?v=H6hw4dGhm8Y From https://en.wikipedia.org/wiki/The_Abyss https://en.wikipedia.org/wiki/The_Abyss "The breathing fluid used in the film actually exists but has only been thoroughly investigated in animals.[5] Over the previous 20 years it had been tested on several animals, who survived. The rat shown in the film was actually breathing fluid and survived unharmed" https://en.wikipedia.org/wiki/Liquid_breathing https://en.wikipedia.org/wiki/Liquid_breathing

sitkack 5y ago
I could see a low pressure breathing fluid being advantageous for space travel. I wonder how long a mammal could live in that environment. Now if we can just retain our gills.
- canadianfella 5y ago
  Retain?
- LorenPechtel 5y ago
  What's the point? The human body can take vacuum fine if supported. The lung pressure lower limit is the required oxygen pressure plus the vapor pressure of water at body temperature plus the pressure of the carbon dioxide being expelled. Putting your oxygen in a liquid isn't going to change this minimum. Liquid breathing is being looked into for high pressure environments, not low pressure environments. The human body has no problem with any high pressure it's ever been exposed to, the depth limit for diving is because the dose makes the poison--you eventually hit the point where anything you could put in your tanks is dangerous.
  - david38 5y ago
    What are you talking about? The human body has enormous problems with high pressure. You are referring to oxygen toxicity. There is far more to it than that. At great enough pressure, your body cannot expel CO2.
  - sitkack 5y ago
    The point is forming an environment that is at low risk to depressurization while at the same time forming a radiation barrier. Why do you need to be so hostile?

sitkack 5y ago

I could see a low pressure breathing fluid being advantageous for space travel. I wonder how long a mammal could live in that environment. Now if we can just retain our gills.

canadianfella 5y ago
Retain?
LorenPechtel 5y ago
What's the point? The human body can take vacuum fine if supported. The lung pressure lower limit is the required oxygen pressure plus the vapor pressure of water at body temperature plus the pressure of the carbon dioxide being expelled. Putting your oxygen in a liquid isn't going to change this minimum. Liquid breathing is being looked into for high pressure environments, not low pressure environments. The human body has no problem with any high pressure it's ever been exposed to, the depth limit for diving is because the dose makes the poison--you eventually hit the point where anything you could put in your tanks is dangerous.
- david38 5y ago
  What are you talking about? The human body has enormous problems with high pressure. You are referring to oxygen toxicity. There is far more to it than that. At great enough pressure, your body cannot expel CO2.
- sitkack 5y ago
  The point is forming an environment that is at low risk to depressurization while at the same time forming a radiation barrier. Why do you need to be so hostile?