Can Humans Breathe Liquid?

Imagine you are immersed in a liquid, your lungs are filled with water, they begin to vomit burning pain, and then nothing happens. You remain conscious and continue to breathe. But how? In the near future, this can be made possible by liquid breathing.

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[THEMAGNUM]

Hey, guys! Would you like to try to breathe such a liquid?

[FirstnameLastname-istu]

This boy said 10 grams instead of 10 G’s

[mosspresso]

Dude, it's G's, as in g-force not grams.

[raisinmydog]

"they begin to vomit burning pain"

[MrMZaccone]

Not ten GRAMS, ten GRAVITIES! Seriously? If you're going to do a science oriented video, it helps to know some science.

[unplugandplay]

In this video, 'G' does not represent grams, but the acceleration due to gravity, which is 9.8 meters/second squared. For example, 10g is 10 times the force of gravity on the surface of the earth at sea level.

[goldfox]

For medical uses, imagine doing lung cleanses, where you breath this stuff in and out with force to get the gunk out of your lungs.
People working in construction and such could get decades of dust out of their lungs and breath again, lung lavages.

[MrJabramo]

10 grams? Are you freaking serious? Come on!

[rhino]

theres more than one problem with fluid breathing, getting CO2 out of the lungs as well as the danger of pneumonia setting in. The inside of our lungs is normally coated with a thin but viscous layer of mucus which acts as a barrier between contaminants and the alveoli of our lungs, when someone breathes in a lungful of liquid, it washes that mucus away, and leaves the internal parts of the lungs exposed for a time. People who have typically drowned and have been revived or who have inhaled alot of water will often be put on antibiotics by their doctor to ensure they don't end up with pneumonia. Any time a fluid breathing system is used, the user must be put on antibiotics after they're done using it, and more than likely must be on antibiotics before they even start breathing it if they're going to be doing so for an extended period, its a question of medical practicality.

And unlike air, because liquid can't be compressed well, and is very heavy, the amount of liquid you have with you to breathe would be much less than you'd get from a standard air tank and you'd have to work harder just to haul it around, so if you are working at extreme depth or in space, you would need either a highly efficient and compact liquid "rebreather" system, or an umbilical fed supply of said liquid, as well as enough heating to ensure neither the liquid, nor your body begin to freeze. And the most damning lynchpin of all, when your lungs are full of liquid, you cannot speak, the larynx is designed to make sound in air, not fluid, so if you're doing work of some sort, any and all communication would need to be nonverbal, and to use something like a keypad, you'd need specialized contact lenses to see what you're typing

But assuming you can get past all of this, you're still talking about using a respiratory system designed to breathe gas, to breathe liquid instead. Your breaths would be fewer, less frequent, and much more strenuous, you would be having to work harder, to push much more dense and heavy fluid in and out of your lungs, effectively forcing you to work harder, for less air per minute, and for less CO2 purging per minute as well. Bottom line, none of the other stuff before this matters if you can't breathe well enough using it to do work. The fluid in question would need to become much less viscous first, comparable to water, and both its ability to absorb and expel CO2 and its ability to carry richer O2 concentrations per lungful would need to be increased, possibly even further than the concentration we breathe when we breathe air. If you're working harder for every breath, then every breath needs to have more fuel in it or your efficiency drops significantly.

[JungleCage]

I wanna breath liquid oxygen so i can dance at the bottom of the ocean like im in a cologne commercial.

[ethanblanke]

How can you talk about some upcoming technology and all of its applications like this and mistake G-forces for grams? For future reference, G means “gravitational forces” and g means “grams.”

[brooksdanielgary]

This has potential, but the person using it would have to have surgical modifications to their body which would allow for a constant flow.

[corwinmay]

In a liquid filled, 'g-suit, ' you would not get a uniform distribution of increased pressure with respect to (w.r.t.) the rate of acceleration; you'd have a pressure gradient across the suit proportional to the acceleration rate. The gradient is going to be really quite steep at 10 G's and it doesn't matter much if the fluid density is the same as the person's density. I expect this could be mitigated by increasing the at-rest pressure in the suite so that the relative change in pressure w.r.t. acceleration is decreased overall..

[ezramatan]

i think this is a great step to the future, yet lot's of people would feel uncomfortable breathing liquid

[mraskew]

grams grams grams, there! I said it too, now move on kids!!! 5 mins left for recess

[lukeh]

10 grams 😂😂 this video just lost all credibility

[erox]

That was very cruel to the rat forced to drown.

[downfall]

“Your lungs vomit burning pain” I wouldn’t want to breath underwater with that description.

[tedshapiro]

With all due respect, liquid breathing technology has been around for decades. The U.S. navy commissioned a preliminary study back in the 1960's, and by the early 1980's navy SEALS were testing liquid breathing diving suits.

[nexusomega]

Everybody gangsta untill you start breathing the liquid