How Does The ISS Get Oxygen?

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Music by: Kevin MacLeod
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[@ChunkyMonkaayyy]

"sky rocketing prices".... You should be ashamed.

[@MrEngineeringGuy]

I'm sorry. media.giphy.com/media/vX9WcCiWwUF7G/giphy.gif

[@ChunkyMonkaayyy]

MrEngineeringGuy lol

[@ChunkyMonkaayyy]

Paul Taylor TROLL.

[@ChunkyMonkaayyy]

Paul Taylor no offense but you’re an idiot. Tens of thousands of people have poured their life and souls into the science of space exploration and you sit at your keyboard with your hamfists spamming garbage. It’s rude, dismissive, and a slap in the face to those who have invested more than you ever will in anything. You’re a “there’s dozens of us” TROLL. Try being positive for a while and see how it goes. You might find it rewarding.

[@carloschevalierchevalier8229]

+Hugh “2007” Jafro you are not aware that space X and NASA are fake.....

[@tmac20031]

Well then the real question is how does the ISS get water?

[@kath4923]

People on earth sent it to em

[@InterestsparkedTV]

Body fluids, all of them.

[@marcosmileo]

Wanking

[@marcosmileo]

It falls from the flat earth.

[@dramaqueen4640]

They have a Man, qualified enough to send his urine to ISS, Just by himself

[@BEder-it4lf]

If you don't Pee enough then--- Urine Trouble!!!! 😂😂😂😆

[@MrEngineeringGuy]

:')

[@maxkonig559]

hahahahah That's an epic one!

[@jujuyee2534]

Not bad dude

[@jonathantaylor7991]

ill be even more proud if this is an Eminem/R Kelly reference. Please let it be so

[@thierryherreman6286]

So what do they drink up there when pee is needed to produce oxygen ??

[@Seniac]

Hey VSauce Micheal here!

[@youtubeaccount9820]

Seniac that’s what I was thinking. He’s copying him

[@connorwilson2253]

Seniac hey Michael extra triertial baby alien hear

[@MrEngineeringGuy]

Yup! Small reference to the king of educational videos!

[@lilgustav5065]

Seniac fuck roblox

[@benjaminbong9214]

Sanic

[@teemuleppa3347]

"howmanypeopleareinspacerightnow .com" i see what you did there... that tickled my inner Vsaucer

[@superpantman]

Interestingly the filtration system on the ISS is so advanced and thorough that even though they are recycling their urine, it’s a lot cleaner than the water you would drink from a tap or even your average water filter

[@cloudstreets1396]

Anyone that has seen “The Martian” knows how this works.

[@zeropomegranates9976]

The only thing i gathered from the martian is poo = potato

[@cloudstreets1396]

Z3R0 SA1NTS 13 - The book goes into a lot more detail into the oxygenator and water reclaimer.

[@beowulf2772]

I haven't but I know, guess I'm a big N E R D

[@Michal235]

The movie was horrible. The only thing I remember from watching it in cinema was that these cinema seats are pretty good for napping. I heard that the book was good tho

[@cloudstreets1396]

Michał - In what way was the movie horrible? I read the book first and then saw the movie.

[@DagOdenhall]

You don't have to grow plants to turn CO2 into O2. You can use the Sabatier reaction together with hydrogen to turn CO2 into water and methane, and electrolysis to split the water into hydrogen for feeding back into the Sabatier reactor, and oxygen. They do this on the ISS. I don't know how efficient it is because they vent the methane which contains much of the hydrogen atoms you need for a fully closed system, but they could potentially turn the methane into hydrogen and carbon, feeding back the hydrogen into the Sabatier reactor. Then you just need to supply food for new carbon, and energy that you get from your solar panels, and perhaps some water to account for inefficiencies, but the food will already contain some water anyway. You can also do electrolysis of CO2 directly, splitting it into carbon and oxygen. They're planning to run such an experiment with the Mars 2020 rover, called MOXIE.

[@ryanunruh2683]

This video generates so many more questions than it answers. Kinda like the way Earth's plants, with only .2% or so CO2, apparently generate the 20% oxygen we breathe. I think it might be all magic, and printing money, which is also magic

[@terryterryson8117]

I read this as "how does isis get oxygen"

[@anwardaud]

By breathing

[@miscellaneous_man756]

@@anwardaud yes

[@Superior1995Rex]

Yet you clicked, lol!

[@scottibugatti7122]

*Navy Seals wants to know your location*

[@wholesomehoorpari1971]

With all the bombings and shit that seems a relevant question now

[@Anno-ls5uu]

I very much enjoyed your split screen Data/Calculation! Super tidy, super clear. Nice job!

[@MrEngineeringGuy]

Thanks man! :) Next video won't have split screen though. Not as much calculations as in this one.

[@Monody512]

Ideally, you'd have a machine that separates the oxygen from CO2 in the air, and condenses that carbon into construction/patch material. That or plants. Plants work too.

[@wyalexlee8578]

I love the mathematical and engineering approach like this, good job!

[@timumbra2476]

I’m way late but I didn’t read it right and thought it said “how does isis get oxygen “ 😂

[@chaddefierofgovernment2989]

Was LITERALLY just thinking about how do they do it, and then this pops up on my recommended 2 years after it came out

[@MrEngineeringGuy]

Better late than never ;]

[@jmchdjaimerporkpuedolol3681]

One question tho... as far as I understood, to form oxigen they're also using another not renewable recourse in space: water. How do they keep the process going without having the same problems as with oxygen?

[@PixlRainbow]

JmcHDJaimer PorkpuedoLOL they send up food and drinks

[@jmchdjaimerporkpuedolol3681]

Fair enough... although the food they send is dehydrated to pack more is less space, right? At the end they seem to be dependant of the water they send via those drinks, which is surely needed for MANY other experiments. Makes me think of the impressive task that space agencies down on Earth do to not mess up with logistics in space

[@thorwaldjohanson2526]

they dont recycle waste water for digestion. When going further (mars etc.) This will have to be solved

[@izybit]

Thorwald Johanson Mars has a lot of water, they will just dig it out.

[@thorwaldjohanson2526]

i'm talking about the journey there. It takes about half a year (plus minus a couple month) to get to mars. During that time you cannot resupply from earth.

[@Dikkepriem]

They could store the hydrogen to let the ISS move through space by releasing the hydrogen. The same happened in the time of the space race when they made a space suit with MMU (Manned Manoeuvring Unit).

[@rituyeshala1390]

actually, the hydrogen generated from adding the electricity to the water is then combined with carbon dioxide (what the astronauts breathe out) and is turned back into extra water for the astronauts to drink! so efficient!

[@user-ez2di7pm5s]

this is not even part of my field as I am in the hospitality industry but I found this very very interesting and ive been addicted to this for months

[@YT-NPC]

the cost for launching 1kg with a spacex falcon 9 is $6000 not $60000. Based on, that the rocket costs 60mio per launch, and the CRS-Dragons (the cargo craft) weights ~10tons (you can read everything at the launch history in wikipedia). The Falcon could theoreticly launch >20tons ins LEO, which would make the $/kg ration even cheaper, but the ~10tons CRS missions were the heaviest so far. I know this is the overall weight at the launch (so including the dragon cargo craft) but even if that weights 5tons so 50%, you are not at $60k/kg..... wtf Except that, really interesting. Was for my also a question that i never really asked myself, but as soon as i read the title, i couldnt resist :D

[@MrEngineeringGuy]

It depends on what you take into account, calculating the launching costs. 60k includes all costs made in order to make it happen. 6k only includes the fuel. Anyway: thank you for watching and have a good day!

[@jamesogle99]

Space X charges commercial customers $61M per launch. With a payload of 22,800kg to LEO that comes out to $2,675 per Kilo. While this is best case scenario, that is the cost Space X charges. Your numbers are way off.

[@YT-NPC]

i thought the same... you probably have to substract the weight of the dragon-ship, and maybe some other stuff. But except that, i dont know why your/my calculation shouldnt be right

[@shadaksharicr]

Really hats off for the superb explanation with realtime data.

[@adtc]

Next question: what does the ISS do with the 700g of hydrogen?

[@gabrielvass3039]

release it to space

[@ashtonsenko536]

Just blast it into space or use it as fuel, ever heard of RCS’s, they release gases or fuel to propell an object, so that’s what I’m guessing it’s used for, POSSIBLY.

[@davidaugeri5241]

they use it to make hydrogen bombs to explode inside hurricanes to destroy the hurricanes

[@fidelcatsro6948]

add em into the thrusters for added horsepower and carbon cleaning benefits

[@GS-xu5vq]

They sale it to ufos lol

[@b6schilke996]

Anybody ever hear David Adair’s recordings regarding tomato plants in the first space station? So much oxygen they had to jettison the plants.

[@briandugmore2163]

Cool. Looks like a Hollywood basement.

[@Lucifer-sn9ir]

Brian Dugmore you can't float like that on earth

[@jameone5000]

Blue Skull Games r/woooosh

[@himself187]

I always have this gut feeling the ISS will one day come crumbling down it's not safe there

[@MrEngineeringGuy]

Well that is surprisingly closely related to the video I'm working on right now which I may or may not post sometime soon(ish)

[@krashd]

It has to come down some day, that is what happens when a space station is decommisioned.

[@nssherlock4547]

Skylab and Mir came back down in a controlled re-entry. So yes it will happen one day when it's time is up.

[@aldwinflores7029]

And some people thinks that the world is flat. What a sad creature.

[@Dufud6]

so how did you calculate the spacex and other cost per kilo of O2, the dragon can deliver 6,000 kg and nasa payed around 90 mil for each mission which would mean its 15,000 per kilo, did you factor in something else too like the weight of containment vessels?

[@attermire2109]

Anyone who thinks the ISS is fake, or earth bound, then feel free to come and observe it in detail using my equipment?

[@macanders1888]

Bollocks

[@Test7017]

attermire2109 ya wanna fly in my ship............ Pervert

[@Novozymandiaz]

To you flat earthers that don't believe we can shoot anything into space. Ask me questions and I'll tell you why you're wrong.

[@JustScrapHD]

there are alot of videos made by the astronauts at the ISS. They are clearly not fake. We can see the ISS and we can see the rockets that are flying there. do you guys know how expensive those rocket starts are? NASA or any organisation would never do those starts just to make us believe, that people are up there.

[@brawler4456]

i would love to use your equipment, but not for observing the iss *grrr*.

[@Ramunas117]

It completely depends on who is sending your 1kg into space. Different rockets have different cost per kilogram, and this varies from a couple thousand dollars to tens of thousands of dollars. Generally speaking, larger rockets have a smaller cost per kilogram because they can launch more mass with a smaller amount of [expensive] hardware per kilogram launched. For example, the SpaceX Falcon-9 has a cost per kg of around $2,500 to low earth orbit, whereas the much smaller Rocket Lab Electron rocket has a cost of around $22,000 per kilogram. Of course, cost per kilogram also varies depending on the destination of that kilogram. Getting mass to other planets requires a reduction of the total mass sent, which therefore increases the price of every kilogram sent.

[@raz0229]

*The Reason I Clicked On This Video:* _I Thought I Saw ISI In The Title_

[@Scrogan]

I wonder what the most compact way of getting oxygen from CO2 is? An electrochemical reaction (either to take the carbon out of the air, or to take the carbon out of a carbonate or other ion in solution) would be ideal for having it be reversible, but I know of no aqueous chemical reactions that produce solid carbon. I assume you’d need to do something more like a fuel cell, or just use algae or cyanobacteria in some sort of capsule with integrated lighting. Using lithium peroxide’s reaction into lithium carbonate works short-term, but it depletes. Note that some chemistries of CO2 absorbers (including LiO2) produce oxygen gas as a byproduct, so you only need to electrolyse half as much water.

[@marvell8575]

that was amazing as well as very informativ, thank you!!

[@EmergencyL0tion]

1:12 imagine using this for scuba diving you could stay underwater for a very long time without coming up for air

[@timothygooding9544]

The main issue with that is having enough pressure exerted towards you from the tank. If not your lungs will be crushed from the pressure. also pure oxygen becomes poisonous at high pressures, and electrolysis creates pure oxygen only, no nitrogen or helium

[@benkearney9684]

So what do they do with the hydrogen? Vent it? Store it? For someone calling himself "The Engineering Guy" you don't explain things very well. Saying it, "should be... taken care of" is extremely vague and pointless.

[@MrEngineeringGuy]

I didn't want to go into that subject. but yeah, tldr: it gets vented.

[@klausvogler6710]

Actually, it gets bound to CO2 to create methane and water. (Sabatier reaction) the water they keep, the methane is vented...

[@_Andrew._]

+Ben Kearney en.wikipedia.org/wiki/Sabatier_reaction sounds like a totally safe and easy procedure, no wonder he didnt want to go into the subject! Would be nice to see a "non-NASA" working model of the system.

[@count69]

Not everyone has access to clean tap water.

[@adtc]

Venting methane.. so the ISS farts

[@haimbenavraham1502]

A favorite astronaut exclamation, 'I am pissed off with this air'.

[@xSy7]

Awesome video! Like and subscribed, you have a decent english accent, but i immediately heard that you were Dutch

[@MrEngineeringGuy]

Groeten uit Delft!

[@andrewbailey7999]

Groeten uit Assen! :)

[@rosssmith173]

Historically no. The massive Bio-Dome 2,even with it's massive jungle and water features was still not able to supply the small team with oxygen. They had to open a window.

[@einfachsj]

The need to grow Cannabis 😉

[@langohr9613ify]

Actually ESA sent the ecls (edvanced close loop system) in 2018, witch uses the Sabatier process to get the CO2 out of the air using H2 and therfore producing HO2 and CH4

[@TwoTeaTee]

No engineer would say "one point twenty-three volt" !

[@komorikom6716]

You're a brainless idiot

[@shubhammeena5177]

one point two three volt

[@Mr.Mister420]

One paint to tree volt

[@MrEngineeringGuy]

A Dutch one would. But our counting system is messed up as it is. One point two three would indeed be better.

[@advancekashmir9846]

Thank you for the video! Wow, oxygen from urine. 😂

[@MrEngineeringGuy]

Yeah I was surprised as well. Very interesting :]

[@etusuku763]

could someone please explain why there are like 438972359 comments saying: yeah they just open the fucking door to the studio..... whats with all the hate?

[@MrEngineeringGuy]

Have you figured it out yet? Cause I'd like to know it as well...

[@etusuku763]

no idea, came here, checked your sub amount ''oh 800 subs'' proceeding to comment section waiting for positive comments but nope, people hating and saying: oh yeah iss is fake, they get the water from the tap, studio on earth.... then theres people like Hey VSauce Michael here! wtf.... what pissed them off?

[@telinoz1975]

Their religions are dying. Ha ha!

[@kewlnes987]

Etu Suku they still want to believe the earth is flat with all this contradicting evidence. You can't convince them because they've already made up there mind. They are misunderstanding the old concept of "smart people think differently." They assume that if they think something is different than most people believe, they are smarter than everyone else.

[@l.lambert9269]

Etu Suku - If they think space is real and they are in a space station that's fine with me. But don't tell me it's real and steal my tax dollars.

[@meatilicious1900]

Me: 'sabotaged oxygen' Everyone on the ISS: *confused screaming*

[@MrEngineeringGuy]

Sus Meatilicious

[@alexderpyracc4053]

Hey vsauce michae... MrengineeringGuy here

[@snoozyyaloozy5511]

Before we colonize mars, we’re gonna need some sort of system that can turn carbon dioxide into oxygen until we can get the plants sorted out

[@kilikus822]

You said "how many people are in space right now.....dot com" with the same style as Micheal from Vsauce doing a DONG video.

[@MrEngineeringGuy]

Yap, small reference indeed.

[@squidy7771]

I... didn't know I wanted to learn this. NOW I HAVE TO

[@vinceoldenhof7117]

Your accent sounds Dutch, South African and German at the same time

[@MrEngineeringGuy]

Well I was born close to the German border in Holland, and South African is just Dutch with small differences. So yes that does makes sense actually.

[@yaddle8833]

Niet kleine verschillen best we groot

[@iranwillgetrevenge3642]

@@MrEngineeringGuy Mr.Worldwide

[@piercehitchcock643]

You do know that the ISS has a pressure altitude of 60,000 ft. And typically that would lead to hypoxia but we convert water into pure oxygen, the higher concentration and high altitude allows the oxygen to bond to the blood but not enough to poison them.

[@ThisHandleFeatureIsStupid]

I absolutely love the way you structured this video. So concise, so clear. Great job! :)

[@EnglishRain]

So how much does the OGS cost?

[@MrEngineeringGuy]

Exact figures are nowhere to be found. But once the system is installed, the main costs will most likely be in the maintenance or water-collecting section.

[@EnglishRain]

MrEngineeringGuy Thanks for the educational video. :)

[@panwarhappy9368]

English Rain Bro OGS is simply an electrolysis system.... It's cheap ... And a work in very simple mechanism

[@SSniperFly-lr7zb]

They gotta setup a grow tent for some space kush. Its outta this world man.

[@stephenpaxman2401]

OXYGEN SUPPLIED BY THE GUYS SWIMMING AROUND IN THE WET SUITS

[@macanders1888]

Spot on ...Just one big lie for mankind .Not one second of actual video of so called ISS being assembled .The biggest project ever and no film.

[@Lucifer-sn9ir]

stephen paxman they do that as an inexpensive way to simulate the feeling of zero gravity because its hard to move in space

[@Novozymandiaz]

stephen paxman THE GLOBE IS A TRIANGLE! WAKE UP AND OPEN YOUR THIRD EYE SHEEPLE! THIS SECRET MESSAGE WAS GIVEN TO ME BY ANCIENT ALIENS: 8::::::::::::D~~

[@quantumstudio9397]

XyW pft the Earth is obviously a fidget spinner.

[@Novozymandiaz]

No, actually, the earth is a hexagon.

[@Ghost-uy1sc]

Best answer that one can get to this question

[@Alya-tv2gb]

The trolls in the comments...

[@MrEngineeringGuy]

Mad Killer I'm afraid not all of them are trolls..

[@Alya-tv2gb]

MrEngineeringGuy some

[@kyrox8689]

The ting I now is a few of my brain cells exploded 🔥

[@wut3358]

It's easy, they just open the vents to the basement in Hollywood.

[@MrEngineeringGuy]

I'm sorry what? I'm getting a lot of these messages. May I ask who you are and how did all of you find my video? I'd like to investigate your view.

[@wut3358]

MrEngineeringGuy It was a joke for the idiots who believe that to be the truth. Didn't you know there's a dome over the Earth? Lol

[@wut3358]

MrEngineeringGuy I just like watching videos about space, and it popped up on my feed.

[@MrEngineeringGuy]

Ah okay. You had me worried because I've been receiving numerous downvotes this day. Also, lots of (now deleted) comments on why everything is fake. See for example the most recent comment (the 50 paragraph long one). I'm glad you were kidding. Thanks for watching my vid and have a good day!

[@uncleuglyhasabeeflyingarou6742]

You Don't Know Me did you know there is a dome blocking you from being able to use your brain?

[@bobplanderlinde329]

Thanks for answering the question with the thumbnail

[@christoffelsymbol1631]

The thumbnail doesn't answer the question lol, in video he said that plants grow slowly because of lack of gravity so this approach won't work

[@leventesoosroland9189]

Clickbait thumbnail

[@MrEngineeringGuy]

The right amount of clickbait? 😇

[@leventesoosroland9189]

I an interested in this kind of topic so i would klick it aniways... Thanks for the fast answer! Love your work, but try not to do this kind of thumbnail-shit :/

[@aswler]

Interesting and clear, subscribed!

[@Pico_444]

They get it from the air, duh. Smh I'm 13 and already know more than astronauts with my iq of 156

[@dekeltal]

Something about this explanation doesn't add up. ISS is a closed system. Whatever water you recycle and use for oxygen, cannot be drank again. So you're gradually running out of water which then needs to be sent from earth. For every 5.7KG of water sent you generate only 5KG of oxygen. So why not just send 5GK of oxygen? **EDIT** OK, this is the missing part - there is an additional system ("Sabatier") that utilizes the hydrogen emitted by the electrolysis, and combines it with the CO2 removed from the air, to generate water and methane. This way half of the water used to generate oxygen is recovered, by utilizing CO2 that would generally be vented.

[@SergeantArchDornan2242]

Dekel Tal urine is recycled

[@sidehustlevideosUk]

Hey can you Do a Video on the magic seals they use on The ISS :)

[@sidehustlevideosUk]

oh are you sure

[@count69]

kzbin.info/www/bejne/a6DbfJevftKer7M

[@sidehustlevideosUk]

thanks buddy

[@count69]

NASA talked about a silicone rubber in separate technical specs, but even that degrades. Do you know which of the 4 million types of rubber NASA used?

[@sidehustlevideosUk]

JiMMY yOU MUST BE THICKER THAN MIKE TYSONS NECK IF YOU THINK That iss is real !! magic 02 Machines its been up thier 20 years magic seals everlasting water never 360 VIEW Amazing metal that can take the extreme temp changes for 20 years without degrading No footage of this man made marvel being bullt no 24r HD Streaming no amazing photos of the milkyway for cams facing to the stars lol come on dont be so naive

[@claytonholton2749]

Looking forward to more!

[@sinbasher1837]

Lower the tanks into the pool.

[@Lucifer-sn9ir]

Sin Basher what pool?

[@keithivanmasaganda8]

I shouldn't have clicked on this I already knew how it worked now I find flat earthers on the comment section.

[@MrEngineeringGuy]

Haha, I know right. At least they helped me go viral :')

[@Stephan74]

Iss is on earth.anyone with a brain knows it.

[@johnthebun]

Jake Heke tru

[@BedsitBob]

It is, of course, a circular process, in that the hydrogen and oxygen can be recombined in a fuel cell, producing electricity and water, and so on, ad infinitim. Of course, you will need extra electricity, since if you were using only the electricity produced by the fuel cell, you would have perpetual motion.

[@djhudgins8412]

What does the ISS even do to help the Earth?

[@MrEngineeringGuy]

+Dj Hudgins That's quite interesting actually: en.m.wikipedia.org/wiki/NASA_spinoff_technologies

[@djhudgins8412]

MrEngineeringGuy Most if not all this technology could have been researched and created on the ground. Roughly 18 billion dollars a year goes to NASA. This type of money could end poverty across the world.

[@earthclad6833]

Dj Hudgins r and d

[@djhudgins8412]

EarthClad r and d?

[@earthclad6833]

Dj Hudgins research and development

[@batmandude1282]

I love that you place those labels in the bottom left!

[@mitchellvlaar3682]

First again!

[@JohnSmith-lq1tu]

When you say you need to apply 1.23 volts to water, what does that mean exactly? Not just putting a probe at 1.23V into a bucket of water, surely? What's the current required, and what distance between the 1.23V and negative? DC?

[@josephmeredith7436]

Zero people in space, do you really believe these clowns are flying around the world @17,500 mph? Really? you're easily fooled aren't you?

[@balloutbubss]

yes i do.

[@Lucifer-sn9ir]

joseph meredith the earth it self does this it spins really fast but they can't feel it in zero gravity and we can't feel it on earth hourly because of how large it is

[@WildRebelx87]

joseph meredith yeah, and?

[@josephmeredith7436]

Could you be more wrong?

[@thefirstprimariscatosicari6870]

joseph meredith Flying fast doesn't mean it's impossible. Once our body starts moving it go longer has problem. The only problem is the acceleration needed to start moving.

[@morgansteward2773]

Don’t they recycle and clean their urine for drinking water as well? So how do they use it for air and water? Wouldn’t they run out unless something is helping recreate..

[@the_3x]

You can only drink 75% of the water recycled, and recycled pee isn’t the only water they drink.

[@alvarbilly]

Haha, another episode of National Academy of Space Actors.

[@alvarbilly]

jimmyfly Haha, you're barely able to enter letters properly to form words, let alone create complete sentences. That's ok, I don't judge 😅

[@alvarbilly]

jimmyfly And it's cheap shots time 😂

[@alvarbilly]

jimmyfly If Murica had ever been to the moon they'd've exploited the fk out of it as they do to everything on this planet. And like another astute observer noted, to get oxygen just open the windows in the studio 😅

[@alvarbilly]

jimmyfly Your assertions are laughable.

[@alvarbilly]

jimmyfly I see, next thing you'll want to assert is true is that a handful of degenerates with box cutters brought down Slimy Larry's buildings.

[@vikrantdhapa]

You need a good background music and a microphone... Your explanation for the concepts is awesome.... And those statistics are good.. Subscribed this channel at 2000 subscribers.. looking forward for a great future ahead for the channel...

[@philrabe910]

They need to try growing them in a plant centrifuge. If they could make one big enough and a host of other issues.

[@SaiSai-tn8pv]

I am thankful for the air the I breathe for free

[@appleappington7346]

I thought the ISS had a super advanced machine that could take Co2 through ventilation split the compound into o2 and c

[@exmuslim3514]

Is ISS steady at a particular place above earth or moving geostationary? And how far is outer space from it?🤔

[@yadavkannan]

In order to get oxygen from plant. One must provide water, sunlight and carbon di oxide to plants. How the CO2 is provided to the plants in ISS?

[@SergeantArchDornan2242]

this might just be the most retarded question ive looked at

[@yadavkannan]

@Arch Dornan keep looking at it.

[@SergeantArchDornan2242]

Yadav kannan you know co2 is exhaled right?

[@yadavkannan]

Arch Dornan got it. But plz don’t stop looking at it.

[@SergeantArchDornan2242]

Yadav kannan di no

[@damienjeremyweir4543]

Don't give them plants because I always forget to water them. Oh and that water machine is no good, dahhhh, its even more expensive to send water to space. 🧸

[@Sevival]

What happens to the Co2 they breathe out? I would logically think that their air just got carbon filtered and reused. But seeing as they constantly resupply new O2 by the OGS, what happens to the surplus CO2 on the station?

[@gman981000]

So, they get their oxygen from electrolysis of water? Surely water is not sustainable enough to use continuously? Do they not need to drink water to survive? How long does this water last before it runs out after depletion of the hydrogen gas?

[@schlend4]

So now you don't have to send 5kg to space but 5,7kg? How exactly does that solve the problem off launch cost?

[@williambramhall446]

Mr. ENGINEERING, Yes, they "should expand the green system to accommodate the oxygen needs, which will increase the need for more people etc, etc, etc...

[@kerduslegend2644]

This reminds me of that person who make their own ecosystem in his helmet 😂🤣😂🤣

[@rolfw2336]

Nice video.. I think you said how many plants would be needed to support the 6 crew, but I missed the words you said. Is that picture of the plant room actually from the ISS? Thx

[@MrEngineeringGuy]

The hall with all the plants is a drawing. The other 2 pictures are real. You need several dozens of square meters to get enough oxygen per crew member. It's hard to make an exact estimate. It differs per plant and like I mentioned: plants don't grow that fast so it also less effective.

[@saumya942]

People often underestimate how interesting, fun and amazing science can be. Most people have painted a picture of scientists and engineers being boring nerds. This is simply NOT true!

[@rasmusvainio3774]

Bioregenerative lifesupport system (BLS?) sounds very scifi and very cool.

[@steveohare4666]

They should try algae, they produce more oxygen than plants, and the fact they're single celled may help in low gravity

[@ProlificInvention]

If they are generating 5kg of oxygen from water, then they are getting 10 kg of hydrogen. Why not heat the gas with induction, causing it to expand and be used to generate considerable thrust. Also, at 276 grams of oxygen per kilowatt, they are having to generate quite a bit power to achieve electrolysis.

[@jason497]

Well doesn’t shipping water to space weigh more and cost more then air

[@kirak1706]

the way to have the iss self sustaining is that one it should have a greenhouse by having one you could put plants in it and the plants give you oxygen and you give the co2 but then there is the water which is the problem animals and plants need water. to create water you could try condensation though it could only sustain one maybe two people it still would do though you must create it how well you might need a warm area that is contained with a plastic glass type of material that would be curve so that when the condensation is on this wall type of thing it wold go down it on to the floor but the floor will bee grated so when the water hits the wall it will go bellow it into buckets of water. other things that could make this work would contain co2 and oxygen, the oxygen and co2 you get from the green house and your self. another thing the iss needs is an ai that will check over the stations systems all the time and if any thing s wrong with the iss it will predict whether it would be fixable by the crew or not if it is fixable by the crew the A.I will take them step by step to fix it, if not fixable an is serious problem it will send a S.O.S signal out to the ground hoping to for it too get received and aided. there is the problem of starvation though but can bee easily resolved by the green house plants being plants that produce food as well. that is what the iss should have in it.

[@rgerber]

That moment when you accidentally connect the methane tanks instead of the oxygen tanks

[@_TheDudeAbides_]

Not possible, the hoses for oxygen are blue and green while the methane hoses are green and blue.

[@rankingresearchdata]

Next video: cost of space station I need invest on that & want to be stakeholders

[@ejicon3099]

Why did you leave us hanging at the end. "That could change in the upcoming years......"

[@JosefdeJoanelli]

The start of this video was very Vsauce DONG like

[@junnyak47]

Ok. So where do they get the water? Isnt that going to cost the same per kilo ss just transporting the o2?

[@josephcalabrese6337]

Has anything changed by 2022?