/sci/ - Science & Math

>>10368487
Neither can get past the van halen belts so who cares?

Even computers would get fried there if they spend more than a minute.

>>10368487
Okay, shitposting thread it is

>>10368487
The suit on the left looks like a motorcycle outfit. The reason space suits are so bulky is because they’re designed to have zero volume differentials, meaning the volume of air inside the suit never changes based on your movement allowing you to get shit done easily and not have to struggle to move in a vacuum.

His outfit doesn’t even look air tight. I’m sure it’s just Elon being a complete retard like usual

>>10368496
based shitposter is based

Dude it was a marketing campaign for the suits people would wear during their "space tourism" where they go into Earth orbit for a short while. Or travel behind the moon.

I bet you believe those sci-fi mockups made by marketing as well

>>10368487
>So you’re telling me the suit on the left is enough to protect you from radiation and other hazardous shit in space?
No, that's what the ship is for. Those are just pressure suits to keep things comfortable for their body so they dont pass out on ascent.

>>10368640
See: Soyuz 11

>>10368487
That suit isn’t for EVA. Stop lying, please.

>>10368496
>Van Halen belts
This post really got me

>>10368487
Yeah this cucksuit is much better

>>10368499
Why not the MIT biosuit?

Genuine question, don't read anything into it, other than what I am asking...I'm not questioning the moon landing (sacred cow)

1. What is the pressure of the suits --I read 4.7psi?
2. If so, how do the astronauts have any kind of manual dexterity?
If you made a glove and pumped it to 4.7psi if would feel like you hand is about to drop off
3. So how do they do it?
4. why do the Apollo suits on the moon and during space walks not look fully pressured e.g. wrinkles in the suit etc.

>>10368487
all those suits are for usage inside the ship. Spacesuits don't provide radiation protection. For going to Mars we can't afford to put radiation shielding on the whole ship. Current designs call for the crew to huddle up in a highly shielded area if there's a solar flare.
>>10368891
suit ports! Suit on the left is actually a space suit.
>>10368925
lower pressures in the suit.
4. that's the outer layer

>>10368970
Ok, so that's the out layer fabric is bigger than the suit which accounts for the wrinkles, I understand that if this is the case.

As to the rest of the questions 1 - 3?

>>10368499
real spacesuits have curves

>>10368487
>>10368719
The SpaceX suits look so toyish, like a cheap 90s action hero figure. The Boeing ones are actually really nice, they look modern but still like real space suits.

this is what next generation NASA spacesuit development is aiming for

>>10368487
no, neither will protect you from radiation in space
they won't even protect you from the thermal environment of naked space, they only work in a depressurized spacecraft
>>10368696
it's like the third or fourth time I've seen that exact post

>>10368574
I think it's an outer layer for abrasion protection over a balloon with the zero diff joints

>>10368590
they're wearing them for the ISS flights as well

>>10368487
>protect you from radiation

It doesn't work like that. Primary radiation isn't as bad as secondary radiation. Meaning, the radiation suit shield will just spray your DNA with seconday particles more effectively than if you didn't have suit sheidling. You need meters of water to sheild you enough to prevent that.

>>10368696
I ..... I'll allow it.

>>10369022
Rick Owens space boots nigga.

>>10369042
I can't wait for our Buck Rogers body-sock future

>>10368925
>1. What is the pressure of the suits --I read 4.7psi?
8.2psi while take off, 4.7psi in space
>2. If so, how do the astronauts have any kind of manual dexterity?
suits have some kind of built in exosceleton
>3. So how do they do it?
all astronauts have artificial limbs
>4. why do the Apollo suits on the moon and during space walks not look fully pressured e.g. wrinkles in the suit etc.
because air pressure on the moon is higher then pressure inside the suit

i hope this helps

>>10369163
thank you yes.
>artificial limbs
I don't understand, jokes aside. 4.7psi seems prohibitive to doing manual work with fingers. Could they even make a fist, or were the hands not pressurised?

>>10369173
have you ever seen Apollo, Gemini, or Skylab footage? gloves have literally never worked in space

>>10369173
>jokes aside
it's already too late for this

>>10369182
>>10369189
Are you telling me, that the gloves are prohibitive and impossible to do anything involving serious dexterity --or whatever the word is.

>>10369198
yeah pretty much. when you see the gloves on EVA, they're so bulky and inflexible pretty much all the hands are good for is simple grasping like they're wearing mittens.

>>10369214
I've seen it looks like they can only form a fist by virtue of the glove being so inflated it touches.

>>10368487
It has a layer of tinfoil so yes

>>10368487
>radiation and other hazardous shit in space?
nigger its a flight suit, not for spacewalks

>>10369198
i'm just saying that you have to be retarded to believe >>10369163.
artificial limbs... exosceleons... come on...

>>10368496
>Neither can get past the van halen belts so who cares?

maybe they could jump
yeah, go ahead jump

>>10369042
They literally just had Dainese ( motorcycle leathers) make them a mock-up.

>>10368574
>>10369067
I think the suits are "sleek" like that because rather than using air pressure they're using the pressure of the suit itself on the skin. Sounds uncomfortable as hell.

>>10369198
gloves in space are notoriously horrible.
>it's like a football

>>10368574
There is no way it's as far into the CCDev without it being airtight. This isn't Spacex advertising themselves from inside their own domain - they have external crews working and training with the hardware right now.
How flexible it is is another matter - SpaceX wants to automate as much as possible and simplify the controls as well. With that in mind, it might be that they consider styling to be worth a little less flexibility or it might not be as bad as it looks.
>>10368891
Not done yet. They'd be the safest option but they aren't mature. Last I heard the Biosuit never got to the required operating pressure - the SAS suit (the first MCP suit) did but you weren't mobile even compared to regular air pressure suits. Which is saying something. There was some talk of making MCP gloves for regular suits but idk of anything came of it.
They have their own disadvantages as well - they're essentially all custom fit, they impede movement just as much in air as in vacuum, they're hard to don and doff etc.
>>10368925
>2. If so, how do the astronauts have any kind of manual dexterity?
>If you made a glove and pumped it to 4.7psi if would feel like you hand is about to drop off
Pumping a glove up to 4.7 relative pressure to atmosphere is not the same as having your hand in 4.7psi. You have 3 reference frames not 2. You're hand feels fine right now in roughly 14.7 psi.
That said to contain the pressure and be durable the gloves are bulky and they do significantly impede movement. You can see this in the videos and in the tool design. No screwdrivers, you use the pistol grip tool, all buttons and controls are oversized and often has guards etc.
>4. why do the Apollo suits on the moon and during space walks not look fully pressured e.g. wrinkles in the suit etc.
Beacause you're not seeing the actual pressure containing section (looks something like pic related). You're seeing what's essentially overalls placed over that to protect it.

>>10369631
No they're not. The helmet and life support fittings would have to be different if it was a counterpressure suit.

>>10368487
How do they raise the visor?

>>10368487
>left
tacky, cheap plastic toy
>right
badass utilitarian
>bottom right
smurf

>>10370138
there are big buttons on the top

>>10370168
THE ULTRA SMURFS

>>10369057
Whoever posted it wasn't me. I thought it was original :(

lol elen gets his ideas from cartoons.

>>10370168
the real-deal SpaceX suits are significantly bulkier than the mannequin versions, which are sized for impossibly skinny people

>>10368499
>wantspacefatcyborgmommy.frog

>>10370207
But where does it go? I mean the SpaceX one, the NASA one clearly rotates and has space to sit above the top of the helmet.

>>10368574
>>10368499
>>10368487
Spacex suits were only supposed to worn inside their dragon spacecraft

>>10368496
fuck off varg you have no clue about how science works

>>10368487
Gotta say the orange suit looks great. He looks like a true hero, whereas the suit on the left looks like some totalitarian police force.

Suni Williams via Business Insider, on the suits

Tim Dodd got to get up close with one and said the latches for the visor are underneath the chin
also the gloves are removable

found it

>>10371750

Private company can't develop functional space suit. They cost millions a piece.

>>10371759
lel, it's not like it's hard with modern materials processing abilities, you only need to contain like 5 psi. these sorts of suits get all their life support from an umbilical anyway so the hard part of an EVA suit (fitting life support into that backpack) is gone.
the hard part of a transport suit is cooling the damn thing, which isn't even that hard, you can buy commercial models for a couple hundred bucks

>>10371759
>functional space suit

Please define that. Otherwise, any retard in their garage with a box of scraps can make a functioning space suit.

>>10368487
Gas in space suits on the right doesnt do much difference when it comes to radiation. And those suits on the left are much better for movement and agility. Maybe they don't seem durable, but i bet that they passed many experiments, simulations of hazards that they may encounter and tests. They wouldn't put those suits on the people that participate in the most important space mission of all time just because they look cool

>>10368487
LMAO at Muskfags trying to defend this. Leave the "real" stuff to the pros and go back to playing space with that ugly rocket. Developing space suits is too expensive and technical for a private company to undertake.

>>10368696

>>10371316
silly ;)

>>10368487
So you're telling me the suit on the right is enough to protect you from radiation?

Boy do you even know what the Van Allen belts are?

>>10372460
> Says space suit is shit because it looks cool
> Says rocket is shit because it doesn't look cool

>>10372460
> Developing space suits is too expensive and technical for a private company to undertake,
You mean like Boeing?

>>10372962
just go around bro

>>10372962
>>10371759
samefag

See: >>10372986

>>10371759
This board is where I go to feel like there actually are people on earth that aren't retarded, but now I will forever be haunted by the fact that you are here.

>>10368487
The space suit on the right was designed in the 70s and had no real means of radiation protection you fucking brainlet. As long as its able to hold pressure in a vacuum, its good.

>>10371750
>>10371755
>>10371756
>>10371762
ASSESSMENT: suit appears to have extraneous features added for purposes of A E S T H E T I C S

>>10373152
>> and had no real means of radiation protection
spacesuits now don't either. Most so called 'radiation' suits don't either.

>>10373193
it's very important when you're trying to sell space to tourists

>>10373198
To be fair, most "radiation" suits used for cleaning up nuclear materials will protect against one major radiation threat - inhaling/ingesting bits of radioactive dust that is emitting alpha and/or beta radiation. But stopping gamma rays or neutrons requires more mass than a person can wear.

>It seems Elon is sending these astronauts on a suicide mission to Mars.
implying he's sending anybody anywhere

Is he still in one piece

>>10373767
Plastic is also a good shield. It is the amount of hydrogen molecules that makes it good for shielding. That is the tech NASA is working on for extra shielding while ESA has glass microspheres filled with hydrogen and helium. So, any substance that can pack the most hydrogen molecules into a space will be the best. If you could somehow make metallic hydrogen, it'd be the best radiation shielding in existence. Unfortunately, unless we can dip into sci-fi and change gravity to make a layer of metallic hydrogen, that will never happen.

Anyone know what molecule has the densest hydrogen atoms per x volume at 1atm?

>>10374405
probably, he might have some holes in him and the paint on his car is probably suffering

>>10374409
>Anyone know what molecule has the densest hydrogen atoms per x volume at 1atm?

polyethylene and water among the best radiation shielding materials

>>10374534
Not lead?

>>10374405
How many military secrets does he know by now?

>>10374551
Heavy atoms such as lead produce secondary radiation which can make things even worse.

No one mentioned this but the Columbia accident investigation yielded information about spacesuits.

The standard big helmet is too big. Any impact and you can get a neck injury. A big enough bump and you can break your neck. Apparently it happened to the Columbia crew before they burned.

So basically helmets need to look like a motorcycle one. Not really that surprising.

>>10369042
Why can't they use a cute model for this? Lots of pictures of this suit just with this woman

>>10369163
>air pressure on the moon is higher then pressure inside the suit
nice bait faggot

>>10374561
Which I think about every time the dentist puts the lead bid over my junk before taking an xray.

>>10374534
What about Polytetrafluoroethylene (PTFE)?
It should have really great chemical resistance as well.

>>10375069
>Polytetrafluoroethylene

No hydrogen in it.

>>10375119
Yeah I guess those F have to fit somewhere...
Forgot about that

>>10375046
X-Rays are blocked by lead, the dentist is doing it right

>>10368487
Life on mars will basically be misery, monotony, cancer and borderline inreversible physical changes to the body. Why the fuck would someone want to actually stay there for more than a several day-long landing stunt is beyond me.
The only long term livable plan is to make rotating habitats that will give you a stable earth-tier acceleration and several meters of rock to protect you from radiation.

>>10368574
Beat me to it

>>10368496
Maybe if they used lead

>>10370138
Voice command *open*

>>10368487
Real spacesuits have the shirt tucked in.

>>10368673
If you get Soyuz 11ed, the suit you are wearing is not going to matter.

>>10369112
Which sort of radiation are you talking about? It matters.

>>10370138
Will power.

>>10371741
>Double vacuum pressure

This is a term of art I am not familiar with.

>>10375400
yeah I have no idea what they're saying there
maybe they're misinterpreting what he's saying?

>>10374712
Upon reflection, I am OK with a space suit that breaks my neck before I start to burn.

But you do you...

>>10374764
There are some:
https://youtu.be/GoS4Lzr4dhE
https://youtu.be/lZvP_URAjmM

And "this woman" is the lead researcher MIT professor on the BioSuit project.

>>10375400
>>10375416
Probably 29.3919psi which is how much pressure would be exerted on something if the atm was doubled and exposed to a vacuum on the other side.

>>10374405
dude, you could see the tires popping on the stream and the glass getting fogged up.

>>10368499
right space suit is better. Cause it's a hard suit there's no need to prebreathe to avoid the bends.

>>10374534
You can add to the list Li-6
Lithium-6 is valuable as the source material for the production of tritium (hydrogen-3) and as an absorber of neutrons in nuclear fusion reactions. Natural lithium contains about 7.5 percent lithium-6, with the rest being lithium-7. Large amounts of lithium-6 have been separated out for placing into hydrogen bombs.
It a biatch in atmosphere but in vacuum you are golden

>>10368891
Because it only exists in prototype form, it's not in production by any organization or company.

It's also a shit suit.
You're bound up uncomfortably and even then it doesn't create the right amount of pressure to work well.

>>10375417
Being paralyzed and watching motionless in horror as the ship burns around you.
Oh yeah that's much better

>>10375583
This. It's either hardsuits or skinsuits, everything else is a shitty meme.

>>10371741
>esthetics [sic]
Imagine being such a pompous Dunning-Kruger exemplar that you can't resist [sic]ing the american spelling of a word

>>10375335
Why do space hab fags assume people will be happy living essentially underground (i.e. under meters of rock shielding) at all times in a space habitat but also assume that planetary habitats won't or can't do the same thing?
>>10375385
What? Soyuz 11 would have been fine if they'd been in IVA suits. The craft was otherwise undamaged, and all their injuries were from depressurization.

>>10375586
didn't it turn out that all their efforts to separate Li6 were pointless because Li7 fuses just as good in a bomb?

>>10375816
>assume that planetary habitats won't or can't do the same thing?
On a planet with 90-110% of earth's gravity- it's literally the same.
On jellobaby cancerrocks, like Mars and all other rocky planets in the solar system (Venus is literal pressurized hell so it doesn't count)- not really. The only other realistic and concievable in the forseeable future space for healthy human habitation is a space habitat.

>>10375816
I wonder though if there are spots in the solar systems that don't receive a lot of radiation.

>>10375158
But then you are sprayed with secondary particles which are far worse.

>>10375889
LEO is actually not that bad. You only need to shield the side facing away from Earth and 1,5-2m of water is enough.

>>10375867
No it is an absorber of neutrons. You dont want to neutron blast the crew nearby.

>>10375886
Lower gravity makes no difference to radiation shielding, and planets provide 50% of your shielding for free, and the remainder at low cost. Any misery and monotony will be basically identical between the two habitats. The only remaining point is whether it causes irreversible physiological changes and whether those are deleterious and theres basically 0 evidence either way.