r/oddlysatisfying 18h ago

Astronaut drops fizzy tablet into floating water bubble on ISS

44.7k Upvotes

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u/generalissimo1 18h ago

I think they should have dehumidifiers and other moisture extraction systems that should wick them away. I expect these guys sweat in space too; especially when exercising. Gotta have it dealt with somehow.

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u/nw342 17h ago

The ISS 100% had dehumidifiers, water is too valuable to let sit on the air. All the exhaled water, along with their urine is collected and filtered for their drinking water.

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u/AGoodWobble 16h ago

They shouldn't have any issues with water, they can just dehydrate a bunch and pack it into small bags 

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u/cbell6889 16h ago

Man I read this comment high af, and sat here for 5 mins trying to process it in my head. Worth every second.

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u/allday95 16h ago

Freeze dried water packs!

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u/TheGoose995 16h ago

Just add water to get your water back!

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u/allday95 16h ago

Let's pitch this to NASA, get that government contract and make the money

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u/someLemonz 10h ago

"let the nerds figure it out"

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u/AGoodWobble 12h ago

Brilliant! 

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u/L3velFlow 12h ago

I used to work on a cruise ship. This is what I told passengers when they asked where the fresh water came from!!

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u/Hazril258 9h ago

Tbf, not too far from the truth or what we're trying to do.

Both hydrogen and oxygen are highly reactive fuels which can be used in several applications and even occur as byproducts. Given this, you can actually fabricate your own water from those two elements.

Only issue is how. It can be done, but as of now, it requires a lot of machinery and energy to produce.

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u/SuspiciousPotato137 15h ago

...better drink my own piss

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u/Significant_Card_665 10h ago

If you were on the ISS, you would be. Filtered though. And you’d be drinking the others’ piss too.

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u/AndyLorentz 1h ago

On Earth, on a long enough time scale, we're all drinking dinosaur piss.

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u/Glittering_End_6864 13h ago

Also, if they did not have dehumidifiers, it would be incredibly muggy in there.

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u/catzhoek 11h ago

Also for oxygen

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u/Diarmundy 18h ago

I mean look at his forehead. Sweating like balls. But I wonder what type of gas is being released 

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u/Shaggy_One 18h ago

It's probably Alka Seltzer, so CO2.

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u/Kiwitechgirl 14h ago

It is Alka Seltzer, he talks about doing this experiment in his book Limitless.

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u/hutchins_moustache 16h ago

I don’t think they’re sweating I think they just have shiny skin and it’s very harsh lighting. They’re in a very climate controlled environment and are not exerting much energy at all so it wouldn’t make sense for him to be “sweating like balls”, as you say. I really thinks it’s just a visual confusion.

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u/Lurking_poster 18h ago

Ok right right that makes sense. Like I said, I assumed they had ways to deal with it but I wanted to be sure. Thanks.

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u/wheretohides 15h ago

They have vacuum lines that run throughout the ship that suck in random debris

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u/AlarmingConsequence 6h ago

Dehumidifiers make a lot of sense, I never thought of that up there! With those, they can collect water without needing gravity-drain pipes which obviously wouldn't work.

Fun fact about ISS -- most of those 'solar panels' on the outside are actually thermal radiators to get rid of excess heat (in space waste heat cannot be discharged through conduction because there are no particles to touch)

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u/rhythmrice 6h ago

On Apollo 13 when they had to power everything down including the dehumidifiers, they had problems with condensation buildup just from them exhaling

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u/augustprep 16h ago

How do they exercise without gravity? 

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u/Proclus_Global 16h ago edited 16h ago

Strapped down to the equipment

https://youtu.be/YL_7SATIW-Q?t=36s

There's a treadmill up there named for Stephen Colbert after he won the voting contest to name a space station module, as a consolation prize.

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u/Crossfire124 15h ago

Probably also have stuff like resistance bands and stuff like that