Humans Might Need Artificial Gravity for Space Travel
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- čas přidán 9. 01. 2022
- Despite the fact that floating around in space looks like a certified blast, it’s not something the human body is optimized for. In order to make these trips possible, scientists are going to have to figure out how to mimic Earth’s gravity in space.
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We evolved with gravity constantly pulling on us at a rate of about 9.8 m/s2, or 1 g. Our bodies are built in a way that takes that into account. Our rigid bones can hold us up, our cardiovascular system can pump blood to and from our extremities, our vestibular system in our ears keeps us balanced, and so on. Our bodies are also good at adapting to our needs, which means when you take gravity away the body starts to change. Bones lose mineral density, hearts weaken, and the vestibular system shuts off because suddenly there is no “up” anymore. So long as the body stays in space these changes aren’t really a problem, but coming back to Earth and readapting to 1 g can be painful and disorienting.
To make the transition to Earth easier, astronauts on the ISS have to spend two and a half hours every day doing aerobic and resistive exercise. It takes a lot of valuable time and still doesn’t prevent all bodily changes, so maybe some sort of artificial gravity could be a better solution. The only practical way to recreate the effects of gravity would be by using centrifugal force, aka spinning. If you’ve ever clung for dear life to one of those whirligigs on a playground you know what I’m talking about. If astronauts could somehow be spun around that might mimic gravity enough to keep their bodies from changing too drastically. There have actually been several proposals on how to leverage centrifugal force, and each of them has its downsides.
One of them is a staple of sci-fi: a spacecraft with a gigantic rotating section. Inside the astronauts would be pushed towards the outermost wall and that would become the “floor”, so to speak, while the rest of the station would remain stationary and in microgravity. But a spacecraft like this would be really complex and expensive to build. Another design is a long spacecraft that twirls like a baton, creating Earth-like acceleration at either end. If the craft were about a kilometer long it would only need to rotate once or twice a minute, but a kilometer-long spacecraft would be about 10 times longer than the ISS and an incredible engineering feat.
#seeker #science #gravity #nasa #space
Read More:
Why does China want to build a kilometre-long spacecraft? And is it even possible?
www.sciencefocus.com/news/why...
"Thinking about the future, Harvey points to a Chinese report published in 2009 called Roadmap 2050, which is the blueprint for how China plans to become the world’s leading space-faring nation by the middle of the century. “The horizon to Chinese spaceflight is not years or decades but half-centuries,” he says."
Artificial Gravity
www.nasa.gov/johnson/HWHAP/ar...
"On Episode 188, Bill Paloski, former director of the Human Research Program at NASA’s Johnson Space Center, explores the idea of artificial gravity within a spacecraft for long-duration missions and explains how it may affect the human body from what we have learned through Earth-based studies."
What happens to bones in space?
www.asc-csa.gc.ca/eng/astrona...
"On a long-duration space flight, such as those planned for missions to Mars and beyond, bone loss can be a serious impediment. This loss may not hinder astronauts while they are in orbit, but upon return to Earth, their weakened bones will be fragile and at an increased risk of fractures. At this time, it is unknown whether this bone loss will eventually reach a plateau, or whether it will continue indefinitely."
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This is why i LOVE THE EXPANSE. They made a sci-fi series so thought out that they even counted for this effect and showed it off in the beginning of the series. Lovely.
Yep, that's what happens when you adapt a series from a 'hard' science fiction novel (as opposed to the nonsensical 'skiffy' that passes for science fiction in the minds of Hollywood) by people who actually respect the source material.
I don't know your age, but the human body is an amazing thing.
Don't be afraid to push your body and you will get it strong.
All the best in getting yourself strong.
The day you give up mentally is the day your body gives up.
@@amunra3111 uh what?
ill have to revisit the show, i already watched it but forgot
Humans need artificial gravity, or else we'll turn into belters.
No one wants to be a beltalowda.
Ayee bossman found da inalowda.
Lucky earther...
Damn inners
humans might need a new body with new homeostasis to space travel lol. we are SO earth.
I think in the distant future humanity will have a technology that can download people's consciousness & upload it to a robotic body.
We have bodies that have allowed us to travel to every inch of the Earth, to the depths of the ocean-and even into space!! Seems like an awfully adaptive contraption to me! Make no mistake, your body is far more complex and incredible than you give it credit for!
very 2020 of you bro
There's like, some book about "possible futures". Might be called "all possible futures" idk.
Either humans evolve and get smarter and do more space flight. Some humans evolve over generations in space to be like all brain and spindly bodies. They also propel themselves through zero g with farts.
@@perplexingperceptions8888 Makes me think whether our soul will follow, it ends up not being you, instead an exact copy to the smallest spec.
Truth in gravity + human body: Years ago, I was an aquatic therapist and spent 40 hrs/wk in a pool. After 6 months, I couldn't walk 1 mile on land without severe pain. Yeah, gravity is important! (& I was young & dumb and didn't exercise on land bc I was so tired after work... but I should've!)
The problem with Gravity is! It does not exist and has not one single fact to prove it.
Density and boyency are a complete fact.
Gravity was one man's lie that was forced on everyone and could not be proven, even to this day.
Density and boyency can be proven by the general public and scientists.
😂🤡🤡🤡
Artificial gravity seems like the wrong phrase. Simulated gravity is more accurate. Its literally not gravity, its centrifugal force.
I agree, this might seem to be a dumb comparison but if i hear “artificial gravity” i think about those space pods in in Dragonball Z where they can set in what gravity they want
yeah but i guess it would get more viewers in if people don't know what centrifugal force is
tbf, due to the Einstein equivalence principle it should be a distinction without a difference to an astronaut in a sufficiently large rotating frame
@@Blackholefourspam hardly the point of my comment. Artificial implies they recreated gravity, not gravitational effect. Its a little pedantic, yes, but what other purpose does the YT commenr section serve? 😋
@@macdietz Hey it serves the very important role of giving people a place to scream at each other over politics they will never attempt to change anyways!
When your muscles atrophy due to lack of use and the fact that it's a nightmare just to go to the bathroom, I'd say that artificial gravity is fairly necessary
The title should be: Humans desperately need artificial gravity for space travel
What if there's an emergency during a Mars landing -- say an oxygen leak or a fire? After 6-8 months of zero-g, even the weak Martian gravity will impair the astronauts.
Yes it " might" be needed
Yes it " might" be needed
What about a tether? Two Starships could be connected with a cable nose to nose, and spun up. Potentially, a special elevator could move up and down the tether for docking and ship to ship transit.
Yeah you can have a small pod rotating at the end of a tether for smaller-vessel spin-gravity. A ship which splits into two, such as an engine section and a crew section, with a tether between them. Or a regular tubular ship with a small detachable tether section. Or a section permanently mounted on a rigid arm instead of a flexible tether kept taught by tension.
Far better a rigid link allowing access, fluid/fuel transfer for balance, power, Comms and double redundancy for safety.
They completely missed the tether and counter weight option? That’s the most realistic option out of the batch! it’s all the benefits of the long ship with essentially no new engineering challenges.
It was already the solution used in the Mars semi-direct proposal.
There will be 2 or more crew craft, for so many reasons
@Peter from NZ Tube not tether, simpler, safer...
@Peter from NZ that's a known issue and avoidable, and not eliminated by tethers either.
@Peter from NZ a 6 arm hub would allow for simple 2,3, 4 and 6 ship combinations.
@Fourier21 To a certain extent. I'm looking at a 50,000-kg deal that includes a 31823-kg cabin, a 3182-kg module at the other end, and 14995 kg of Zylon tether between them, stressed ten percent at the spin axis (where the tension is greatest). Spin rate is 30 turns per hour.
I can't imagine that too much space becomes unaccessable when in spinning rooms. You can still build storage space into the floor and all of the on board systems into the ceiling with drawer like mechanics for example.
I agree
Its like they dont know we already live and function in gravity
I'll then patent a special, semi-stationary or fully stationary device used to assist in vertical movement of bipedal persons or specially skilled robots. It will be very close to ladder, but IN SPACE!
The problem overlooked, that I've only seen a few engineers and doctors discuss, is that most humans cannot even function properly when spinning at relatively low RPM for more than a few minutes. Some early tests have shown that most people can't tolerate more than 0.5 RPM before noticeable motor function loss occurs and mental disorientation sets in after 10 minutes of use, making the astronauts compromised in their ability to function. To build a ship that spun no more than 0.5 RPM and create enough simulated gravity, you are talking about a ship that would be several kilometers in size. The financial and even engineering logistics of that alone are science fiction at this point. Perhaps in a few centuries. The personal centerfuge device where astronauts spend a few hours a day is the most realistic solution. You can build drastically smaller ships, bring more crew and just stagger duties thansk to the increased crew size while people rest in the personal centerfuges - and you won't need a multi kilometer sized ship for a small number of people like you would with a spinning room solution.
@@Hathur It's not overlooked. NASA actually did investigate and found out that with under 3 RPM, majority of people is OK even long-term, 2RPM is OK for everyone. I can't remember the original video, but Kyle Hill has an episode on it.
Might? Obviously if you want bones that work at the end, not to mention a functioning circulatory and immune system, yes you need gravity.
Someone needs to design a lightweight space suite that adds resistance to every move you make. Forcing you to use your muscles more just to keep your posture.
It's not just muscles. The internal organs also need gravity to function.
@@adamfurtaw915 As well as the skeleton.
@@alexandervlaescu9901 - True. Bones start to dissolve in micro gravity.
Not enough, gravity is vital
I was reading comments on some site, people were talking about artificial gravity with SpaceX's starship. A guy in those comments suggested using a tether between 2 starships and spin them. Seems plausible, if you could figure out a reasonable tether system. You could make it as long as you need. Not a rocket scientist, but it seems like the most plausible as far as engineering and cost. Also timeliness, if he wants to start sending people to Mars in the near future.
This is actually a well known solution and I am surprised they missed it. It’s been in proposals since at least the Mars semi-direct plan was drafted and it’s been in several hard SciFi movies.
the starships walls are thinner than a pop can relative to the size Elon said. They aren't exactly made to be swung around like that lol
tether have to be over 100-200m, with available and cheap materials it would be super heavy.
@@WaterspoutsOfTheDeep But they already have to withstand immense tensile forces because of the pressurised liquids inside. Of course a single tension point is a bit different to an omnidirectional one but it still counts.
@@Trim11 We produce steel cables with that kind of length and load all the time, more over: It's a pioneer mission to Mars, who said anything about cheap?
What about two spacecraft rotating together in tandem connected by a long tether.
The Project Hail Mary method
I don't know how you would launch that
@@tylermacdonald8924 Separately, then connect them in orbit.
@@tylermacdonald8924 Couldn't you just put two small capsules into a single rocket and have the tether wrapped up?
@@The_Canonical_Ensemble Yes but tether would have to be kinda thick/strong cause you're asking it to withstand the tension/weight (albeit a 1/3rd since you don't NEED 1G) of the structures on either end.
Yes! I was waiting for yall for my Seeker fix!
Haven’t experiments shown people don’t tolerate such small centrifuges over longer durations? Lots more concepts I’ve seen have a room on an arm or a tether rather than a full ring, but the space the section would move through would be the same space a ring would take-up.
It would be 50+m in radius, not small
@@jonbong98 you did see the part of the video where he suggested a human-sized centrifuge as an alternative to building a big one?
@@kaitlyn__L yes, it's an ill thought out concept. It would destabilise the craft, waste volume & energy, take hours of crew time daily, limit crew size & not resolve the other 22 hrs per day problem. SpinGravity, whole craft, is the simplest solution.
@@jonbong98 then we are in agreement!
If the engineers are worried about the space, than they should use the outer surface of the spacecraft as a storage, and this may offer more space in the space.
Great video....awesome stuff.
If you upgrade the ventilation system on spaceships, making it to pump air down from the ceiling of an individual cubicle or a cabin and to outtake it through the grated floor, like in a wind tunnel, then you can replace artificial gravity with the directional airflow dragging. Such a simple design will instantly save astronauts from unnatural sleeping in weightlessness and the danger of carbon dioxide poisoning in a gas pocket accumulated around the face of a sleeping astronaut, and their skeleton and muscles will be loaded with no need of spending hours on a treadmill. Simples! ;)
@2:23 The spacecraft doesn't need to be that long. It could be 2 starships attached with a strong cable at their nose, spinning together
They clearly haven't done any research on this. The main design would be a crew compartment at one end, connected to a engine/reactor at the other end, connected using a strong cable, with storage in the middle. It wouldn't have to spin very fast therefore reducing the effects of dizziness.
@@satnav9699 The Starships could even use gas thrusters instead of their engines to start spinning sideways together
@@PassportGaming Yeah that's the idea. The engines are only used for less then 1% of total travel time (if chemical rockets) and 5% (if nuclear).
Two Starships -- one passenger, one cargo -- spinning to create Mars' gravity, connected by cable(s) to the lifting points. The floor is the floor on Earth, space, or Mars. The cargo Starship also functions as a lifeboat.
czcams.com/video/H9jA8_Fc1RQ/video.html
@@franksolario1842 Adding solar pannels to the cable is genius
There is no question that Humans will Need Artificial Gravity to travel long distances in Space or sustained stays on low Gravity planets. If not one may evolve into a boneless ectoplasmic blob. How do extraterrestrials deal with this problem as well as the extreme G-Forces navigating Gravitational fields ? the answer is simple but acceptance is the hard part as well as the proof. The concept that the simplest explanation is usually the best one applies here. The answer is known it just will take time to assimilate as people find and become aware.
Great video 👍🏿
I think as long as you have a suit that makes it so that you can’t turn your head too fast or stand up too fast, I think a large spinning ring would be great!
I wonder if we would still feel inertia in space or if it’s just being subject to two strong forces that causes it. I think constant velocity and compression suits for long distance travel would be the way to go. Still low gravity in the middle and near the end of the trip but it would be less time to have to combat the effects of low gravity, by having thrusters at both ends you could get the effect from rapidly slowing down.
That or extremely efficient engines. Maybe nuclear ion engines
It would be nice to think that the cost of lost work and storage space in a vehicle built for spin gravity could be reclaimed (at least partly) in the work hours that can be redistributed from space cardio.
Oh yeah, space toilets
Nice video.
Is whirlygig a term people actually use for that thing on the playground, or was that playfulness?
The American Southwest we called that a merry-go-round. (And I think we sometimes used that word for the amusement park carousel ride as well.)
Moving of the craft
It's interesting to do the arithmetic for shipboard gravity via constant 35.3 km/s/h acceleration halfway towards the destination, then acceleration away from it at the same rate for the second half. Specifically, how much propulsion kilowattage per kilogram?
The arithmetic: multiply the cube of the acceleration by the distance. Divide by four. Take square root.
Over the Earth-Moon distance it comes out 310 kilowatts per kilogram. Earth-to-Mars when they are closest, 3600 kilowatts per kilogram.
So for a 100-tonne vessel, 360 gigawatts. That implies a less-than-100-tonne thermal radiator that dumps ~1 TW.
Fortunately, long tethers exist, and spin gravity exists. We just have to put them together. And as a side benefit, astronauts will still have shipboard gravity after they've braked -- using much smaller amounts of power -- into Mars orbit and turned the drive off.
Happy birthday Julian!
...and protection from radiation. Two issues that keep getting kicked down the road as we discuss space travel.
It's another subject, but we'll understood.
alternative title "Humans need artificial gravity for space travel, here's why"
"Might" more like surely do. There was recently an article about how going to space messes up red blood cells. I think it's the bare minimum for any long term space travel.
Manegtic shoes to magnetic surfaces on space ships would be cool
The best solution is probably the rocket with the rotating center like in Martian, but have 2 of them for shuttling too and from Mars. In the meanwhile just having them orbit while they wait for another load, the complexity being how do you modularity attach and detach the people going to and from
have a center that is not welded ot the rest, but then, how do you get from the center to the outer :Derp:
A Mars cycler. The only advantage to that is increased room. Keep in mind that in order to board a cycler, you must match speed and trajectory. It you have the power to do that you're already on your way and don't need it.
Starship has 1100 cubic meters of habitable volume, more than the ISS. A cycler is wholly unnecessary.
@@franksolario1842 it is much cheaper and easier to send astronauts in a light and compact shuttle that bears minimum life support to a cycler than to send a cycler's worth of a ship each time.
@@tymoteuszkazubski2755 Yes but.
You would also need to replenish the Mars cycler with food, water, supplies, fuel, spare parts, etc. For comparison, we send a cargo ship to the ISS every two months.
@@franksolario1842 exactly the point Is that you don't have to haul all this mostly empty space that helps with crew comfort and health as well as possibly holding hydroponics and other heavy equipment that doesn't have to come planetside.
I honestly thought we had this technology already. Must be a movie I was watching.
All that's needed is the ship from Passengers. It's a brilliant design.
Just split the craft in two, Have a long tether between the parts and spin.
The tether can easily be long enough to give a nice consistent artificial gravity.
If one is worried about the tether being popped by a micrometorite ... just fit both parts with a solid fuel rocket nicely calibrated to cancel the rotational velocity so the parts stay close enough to each other to re-tether. Easy to activate automatically if gravity suddenly disappeared.
I was thinking exactly the same and given the materials available, i don't think should be the limiting factor
@@babayada2015 Yes.
Easy, not much added weight ...
Looks like modern engineers are overseen by accountants.
It can't be possible that a solution this obvious has been missed.
It just can't be made fancy enough to be worth big money, and it is too basic to patent, not that one could at this point ;)
@@advaitrahasya I am sure they aren't missing this. Probably they don't need it or there is some problem that we can't understand.
@@babayada2015 tether have to be pretty long (at least few hundred meters), so whole system (with non super expensive materials) becomes heavy.
Short tether (20-100m) would make you feel uncomfortable (with mission duration of 12+ months).
Why split the craft in two? Just send two of them, connect the noses by a tether, and rotate them about the center of the tether point.
Known for a long time with all the studying of effects of space on astronauts.
I would say without artificial gravity, humans will not be able to travel very far in space. The "International Space Station" isn't actually in Space it is in "Earth Low Orbit" which sits well within earths atmosphere and is under the influence of earths gravity.
I have always thought (after getting even basic knowledge of what zero gravity does to human body) that we must develope artificial gravity or we wont get very far or atleast not for a long time
Or we end up with a permanent class of people who live and work exclusively in space. The changes only become a problem when you want to go back to planetary gravity.
@@asvarien true but that opens whole another can of worms
@@eetukovanen6170 while true, it’s alas a can of worms our economies have shown time and time again they’re willing to open.
Permanent underclasses help profits as well, after all. Eg a captive remote population can have a separate inflatory system than the main central economy, which can ensure any local costs of living are order(s) of magnitude lower, which keeps wages for the home companies low.
We saw it with eg British colonies only being allowed to use shillings and not whole pounds, which kept their labour roughly 1/20th the price. We also see it today with China, where even in the city centre, decent but not extravagant eating out costs like $3 instead of $30 as in the West, and that ratio holds for most daily necessities, a $3 prole meal in the West is 30¢, rent an order of magnitude lower, etc.
It’s predatory and colonial, which is also why China is investing so hard in industrial infrastructure in Africa and trying to set themselves up for space, as their own middle class grows and China’s economy experiences more inflation. It’s why the USA (and allies) invested so much into trade with China after Japan started getting rich, then Korea, then Taiwan, etc which pushed them out of affordability for outsourced manufacturing.
Therefore, unless anything drastically changes about our economic systems, I fully expect “entire class of people who cannot come to earth, and might even outnumber us by a large degree up there”, to be more likely than spending lots of money on artificial gravity everywhere. Maybe on pleasure ships, space yachts, for the rich earthers. But not space factories, or space mines, or space cargo trucks.
I’d love to be wrong. I really would.
@@asvarien Who on Earth is willing to lose their ability to come back to Earth. Even the most asocial person would be hard pressed to take that invite.
Send vibrations
what about what the exspanse does to make gravity?
We WILL need artificial gravity for space exploration not might need.
Only if you want to return to planetary gravity at some point. By the time we start making any serious forays into space I'd expect to have a well developed solar system wide infrastructure supporting millions of people living and working in space.
@@asvarien that would make artificial gravity tech even more necessary option, because planets can at least provide some gravity.
Just need a very large hamster wheel with a million hamsters onboard.
What I still wonder about this, adding centrifuge to spacecraft will make it hard to turn for manuver. How do they expect to solve this?
I guess they could just put a much smaller but much more massive counter-rotating reaction wheel, then desaturate the whole system with thrusters if needed?
It's simple enough if the whole vehicle is the centrifuge, and pilots are required to understand how to precess a rotating object.
Perhaps someday you'll have a choice of two space cab companies, Angular_momentum_R_us and "Torque? Precession? None-a-that! Shut up about that fancy stuff".
slow the centrifuge down to a stop then complete the maneuver then spin it up again?
Some type of calculated magnetic suits or clothing and neodymium floor possibly some on walls depending how it would all play out.. Seems like the mire obvious answer yet i dont see much on it..
Having a magnetic suit would only attract your feet down, and if you made the magnets strong enough to attract all the way to your head that would mean your lower body would experience way stronger forces, if you bend down you'll weight way more than if you were standing up, if you fall down you won't be able to get up, and that would still not solve the issue of your blood and internal organs being in 0G
A rotational period of 3 times a minute, with a radius of 33 meters will yield one-third of Earth's gravity, roughly equivalent to that of Mars. Some people will likely experience some initial discomfort with this but the vast majority would likely be able to quickly adapt. This could be done simply by attaching two (or more) crew modules together with a tether. Two crew modules are useful regardless for redundancy, so if there is a catastrophic failure in one, the crew has a backup.
Ideally, the tether would actually be a pressurized elevator tube attached to a rotating collar on a central module. The central module would contain docking attachments to which for instance the propulsion system would attach, as well as the emergency radiation shelter. Of course, a full torus would be even better but would be much more costly to deploy, likely requiring low Earth orbit space station assembly.
Agreed, but more likely 50m+ radius and yes a solid tube and hub
Are there Earth like planets that have larger gravities than Earths? If so could we survive on those, or even get off them?
We have a hard time getting off this one. Probably be difficult to get off a larger planet with chemical rockets.
How do you shield from gamma radiation?
Lots and lots of dense material or LOTS AND LOTS of not so dense material.
It's not a question of might, it's a definitive necessity if we're gonna expand across the stars with reliable comfort and maintain our body structure.
Tether 2 spacecraft together and spin them using the lift points from their rocket integration.
We need births/very young humans in space to see how a the body would truly adapt to space... i don't see any other direct method for this information to be understood.
We need to find the Graviton.
Human flight, beyond lunar distances will be all but impossible without artificial #spingravity. Fortunately it's not complex to achieve.
Might need??? ....neeeeedddd!
centrifugal forces are not the only way to mimic gravity, linear acceleration is a better method for it since it has less parts and complexity.
That *would* be true, except for (1) conservation of energy, and (2) the inevitable need to lose heat when energy is converted.
Acceleration isn't just metres per second squared. It's also joules per kilogram-metre. They're exactly the same thing. So when a vehicle accelerates halfway across a distance 'x' at one gee, it accumulates kinetic-energy-per-unit-mass of x/2 times 9.8 J/(kg m). Letting 'A' stand for acceleration, kinetic energy per unit mass is Ax/2
The time it takes to do that is root (x over A).
So the **power**-per-unit-mass is one-half times A^(3/2) times x^(1/2).
That's the power that actually accumulates as energy of motion. More power than that must be spent -- a lot more -- and the excess must be radiated away.
This turns out to make one gee acceleration, turn-over, one gee deceleration require an increasingly large radiator for increasing 'x'. Beyond about 100 km, at one gee, the radiator takes more than 100 percent of vehicle mass.
You should try to work it out for yourself. Acceleration cubed times 'x', all square-rooted, divided by two.
What about the biggalow system with one a connection on the front and back.
It would only need the outside balloon spinning to create some micro G.
It would be like a bounce house with no gravity in the center and if someone jumps on the other side they can launch you😁😄
We’ve researched this so little it’s comical. For all we know just making sleeping area with normal G may be enough to massively slow all the bad effects.
I wonder. Why not just a spinning cylinder? Since well most of our current spacecrafts are more or less cylindrical shaped. Spin the whole spacecraft along its axis and it'll have the same effect as a torus with even more space to spare and even less moving parts to worry about
You cannot make your period of rotation too fast or coriolis effects will make people ill. About three times a minute seems to be fairly tolerable. However to get even a one third G the radius of the cylinder would need to be 33 meters at 3 rotations a minute. A rocket sized cylinder would be WAY too little in terms of radius.
Apparently no one saw Stowaway
0:00 Who turned on the gameboy??
if the spinning sections were exclusively for sleeping quarters then astronauts would have a lengthy, daily dose of gravity. And since it's for sleeping only, there's not much need for headroom/empty space since they'd be lying down and unconscious.
Especially when you consider that currently we don't actually want gravity during work time as the whole reason to have astronauts conducting science in space, is BECAUSE of the lack of gravity.
Just flick on the gravity switch like they do in sci-fi movies.
With ISS doom fate burning in the atmosphere.
Would it not be ideal to experiment with some artificial gravity?
Shocking.
Thats obvious of course we need it
Gravity is a different thing and since the giant asteroids 2017 , over russia and America , I think russia was later but America was 2017 , where we could move the jupiter material after meaning jupiter is not as densely heavy as first assumed. I believe now its a fluid state of conductivity earthing and emission , before fluid boils away it holds so much current earthing and holding current the body is like elctro magnetism holding on to fluid core and states of fluid energy. Sound should be tested so much more as it has a core where a center of output as with an impact I was close to there was pebbles rolling away as the beach lifted but the earth splitting and booms of ground thunder were not there for me at point yet must have happened. This means there is a core eye to reverberation and its perimiter that could be tested in the vacuum of space , so as to know its en energy possibilities as well as subsonics growing like fluid into a ball while that density could then be utilised from its core being fired through. If you take fluid and transmit lots of radio sound through it it should grow heavyer , with the application of current im unsure the outcome but would then hold and build the heavyer dense to become the grav core , plus seperate subsonics building to the eye and the transmissins fired through it with electromagnets around its core to hold on to the sounds eye and transmission light speeds could be achieved and with careful experiments of that eye just as mach settles the turbulance so subsonic core a grav solution once hitting transmition laser speeds or warping to out edge and puling the sound to keep puling to the outer edgesof sound utilising the eye of sound and fluid states , radio graved water and so on........ must know more about sound in space , and you read it here first 1 current Gravity
Off-the-cuff answers only, please: if you could send a 50-tonne spaceship on a multi-year Mars round trip, floating all of both ways ...
or one massing only (1-x) times 50 t, with artificial gravity kit taking up the missing 50x tonnes, how big of an 'x' could you stomach before you said, screw it, we'll float?
They may need a magnetic field as well?
❤
Seeker seems to have sought comment from workmen who didn't want the work ...
"several proposals on how to leverage centrifugal force, and each of them has its downsides. One of them is a staple of sci-fi, a spacecraft with a gigantic rotating *section* ...
"Another design is a long spacecraft that twirls like a baton, creating Earthlike acceleration at either end. If the craft were about a kilometre long it would only need to rotate once or twice a minute. But a kilometre-long spacecraft would be about ten times longer than the ISS, and an incredible engineering feat. It would also make steering and spacewalks really complex to say the least. And both of these designs would sacrifice precious internal volume ...
"When you factor in cost, complexity, and usable space, a rotating craft becomes more trouble than it's worth."
That is false.
It would be more obviously so if Seeker had seen fit to mention the eye and brain problems that have been showing up for ISS astronauts. These are much scarier than the losses of muscle and bone mass that *are* mentioned, and said to require the astronauts to exercise 2.5 hours per day just to stay partially ahead of. I had heard an already-ridiculous number of just two hours.
Still artafical or simulated gravity on space ship is one thing but adding gravity on moons and planets that are less then earth’s gravity?
But no one is talking about that
@@Leadfoot_P71 agree that is needed to be addressed if humankind truly wishes to colonize other planets to insure our survival as a species
@@XenoRaptor-98765 No, trying to "increase" gravity on a moon or planet sized object would be totally impossible and therefore one of the last things on anyone's mind.
@@Leadfoot_P71 No it's not. Just use centrifuges, yes it would be awkward but it's doable.
Just have a donut or cylindrical shaped building with banked floorspace around the edge and have it spin. The centrifugal force adds to the present gravity and you have a seemingly increased weight.
Hi
Spacers must have gravity, even if this complicates the jobs of spacecraft designers who reasonably anticipate never leaving atmosphere themselves.
What about just making a bedroom with 0.5 to 1 g wouldn't that make it work?
Ok NASA how about light-weight, motion resistant clothes so the muscles have to work against the clothes’ resistance to movement. Of course, exercise for the heart is necessary too.
So dragon balls anti gravity chamber
Someday will crack acceleration gravity.
I offered nasa and elon musk an idea for a 1g space drive and did'nt even get an answer.
ala the classic SciFi movie "2001"
Sounds to me like the personal centerfuge is the most viable / realistic option. Astronauts could use them when resting, possibly sleeping (if its possible to even sleep while spinning though) or just getting some personal down-time. Have seen numerous engineers discuss the spinning ship idea in its various forms and it is basically all in the realm of science fiction. The realities of spinning a disc section or even the ship itself to maintain enough gravity would simply result in too much disorientation for people to realistically function, or you'd have to build the ship so massive to keep the RPM as low as possible that the financial cost would be beyond absurd, not to mention the logistics of creating a ship 20x larger than it needed to be just to simulate gravity at a low enough RPM for astronauts to be able to still work. Personal centerfuge a few hours a day is a far more realistic option - you can bring more astronauts in drastically less space than the monstrosity of a spinning ship would need and just stagger duties while people rest in the personal centerfuge.
The cost would be minimal. The cost to build something like that on Earth and launch it from Earth would be astronomical, yes. That's why nobody's seriously suggesting doing that. You'd build either in orbit or on the moon. This is why establishing a presence on the moon is so critically important. There are plenty of raw materials, and the launch costs in energy are dramatically less.
Once you're already in orbit or on the moon, the cost isn't worth mentioning..... especially compared with the cost of people never being able to come back to an actually NORMAL life on Earth after working in space. (Mir astronauts had problems with broken bones years after coming back down from a longterm stint on the station. Bones didn't just get less dense, the lack of gravity caused flaws in the bone structure that led to weak points. Skeletal time bombs.)
We just need to travel to the astroid belt and collect up enough mass :)
Thanks for your excellent informative video. Exactly! Other than fiat money Elon Musk and NASA, how do you propose to deal long term gravity effects in human body? Is there any amount of currency that can print for that existential fact? About centrifugal force, doesn't that make you nauseated and energy requirements to do such things prohibitive?
Nausea depending on RPMs, power requirements limited, no resistance/friction
You don’t say 🤨
I don’t think humans will explore space in person. I think we can go much further if we make robots that do it for us
Couldn't crafts spiral to create centrifugal force perpendicular to course? Just for sleep
I wish Elon would acknowledge this. It would suck if colonists arrived on Mars and couldn't jump 5 meters
🤣
He has, They have already designed a long distance starship as well
@@personaljesus0529 He has never mentioned artificial gravity. Send me a link to that video if he has
@@PassportGaming It's all over the place He's been talking about it for years look it up
Sheesh
Simple. Just use an earth mass black hole.
You forgot one more possibility: constant acceleration or deceleration.
Totally impractical unless you have some fuelless thruster
Funny how things are "expensive" to build but in reality humanity shouldn't be concerned about how much money it takes to save or improve our lifes... kinda sad.
First I need to fix the motor on my fishing boat.
sp brasil 😎
We need cryosleep technology so we dont need to waste our time traveling in space.
😅
With more and more medical research on humans and gravity, I am surprised why NASA and Russia have not done research on artifical gravity.
They have.
I'm trying to wrap my head around the fact that f'ing Dragon Ball Z accurately predicted the future with its gravity training. We are 100% living in the weirdest timeline.
We would have been aware of these issues decades ago, certainly before Dragon Ball was written. You should look up the concept art for NASA's post apollo plans. They wanted moon bases and space habitats.
Send the powerlifters and bodybuilders first
And give them an AI or else they’re doomed
😄