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Questions tagged [artificial-gravity]

Artificial gravity is the varying (increase or decrease) of apparent gravity via artificial means, particularly in space, but also on Earth.

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6
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1answer
117 views

Would air circulate in a rotating station on its own?

I know air circulation was a tricky problem on the ISS . I think that in a rotating station the air would be moving with the station, but the air against the “floor” would be moving faster or have ...
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58 views

Variable Gravity, how long in each?

Centrifugal force can be used to simulate gravity in space vehicles. Assume the "gravity" in our space vehicle can provide environments ranging from 2 gravities to none (micro), either by changing ...
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2answers
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Are large spin gravity spaceships practical considering strength of materials

Are spaceships using spin-gravity to simulate normal earth gravity on their inner surface practical considering materials available today (i.e., steel, carbon fibre, etc.)? Imagine the spaceship as ...
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1answer
75 views

Where should ion drives be placed on a rotating space station of the lop-sided dumbbell variety?

I have been working on a model of a proposed artificial gravity facility by Joe Carroll, based on this paper. It is an initial concept paper and it doesn't spell everything out, so I am trying to ...
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3answers
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Are rotating habitats considered the standard solution for long-term human habitations in low-g environments?

It's long been proposed to build rotating colonies (ring worlds) in outer space. That concept can also be applied to surface colonies in low-g environments. (Luna is at 1/6th of Earth gravity; Mars ...
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3answers
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How would a drone work in centrifugal force generated “gravity”?

How would a hovering aircraft such as a drone operate on a rotating spacecraft that creates artificial gravity using centrifugal force? For simplicity, assume it's a drone on a space colony, similar ...
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3answers
190 views

Do spinning space stations slow down without energy input?

One thing I always wondered was if a giant spinning space station that was providing artificial gravity would slow down without any energy input. I would assume that energy is being lost to heat as ...
4
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1answer
337 views

Could the BFR Tanker be used as an artificial gravity counterweight for interplanetary travel?

An alternative storyline to the Mars transport architecture: Tankers refuel starship, last Tanker gets mounted on the Starship for the Mars orbital injection burn, once on a Martian trajectory tanker ...
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Can artificial gravity be created by spinning the hull of the space station? [duplicate]

Is it possible to create artificial gravity in space stations by spinning the hull of the same as shown in movies like interstellar and The martian? If yes, at what angular velocity should they be ...
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3answers
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Qualitative differences between gravity and a spinning habitat

I'm aware that living in a spinning habitat has a couple of noticeable differences from being on terra firma. For instance, running in the direction of the spin ought to make you feel heavier, while ...
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3answers
166 views

Creating your own artificial gravity by running. (Part 1 - the basic idea)

The main motivation for artificial gravity is the astronauts' health Usually artificial gravity is supposed to work by rotating the spacecraft. See diagram A. Wouldn't it be much simpler to simply ...
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Artificial Gravity - How much is needed per day?

Has any research been conducted or is anything known about how much time must be spent in 1G per 24 hours in order to preserve good health? Assume that this refers to an extended space-journey. The ...
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Proposed methods to use electromagnetic force to replace gravity beyond boots?

I have been wondering if there have been any serious proposed methods to try to recover some functions of gravity with electromagnetic forces for astronauts in space. Fields generated in the floor of ...
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electromagnetics as a form of Gravity [closed]

Wondering if anyone has ideas about creating an electromagnetic field in the Floor of an exercise room combined with clothing that is laced with metal strands. the intensity could be adjusted to ...
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0answers
103 views

Would Bigelow space stations work if rotated to achieve 1G simulated gravity?

Would Bigelow's proposed space stations work if two of them are connected by a tether and rotated to simulate gravity of 1G (or how much)? Would they hold up structurally? Would there be other ...
9
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1answer
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Radial variation of atmospheric pressure in rotating O'Neill cylinder-like ship? (Rendezvous with Rama)

Sir Arthur C. Clarke was a science writer as well as a prolific writer of science fiction (including hard SF*), and his stories usually had a substantial footing in science. His book Rendezvous with ...
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1answer
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Can birds fly inside an O'Neill cylinder?

We know that birds can fly in a weightless environment from experiments with pigeons on the Vomit Comet. But on a very large O'Neill cylinder space station, could they fly the same way they do on ...
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2answers
174 views

Gravity on a spaceship

What if you lined the lower hull of a spaceship with osmium metal plating, would enough osmium plating create enough pull to simulate earths gravity?
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What is the minimum diameter to spin a space station to generate 1 G without affecting human vertigo [duplicate]

Thinking about the mars mission. If we had 2 equal weight capsules, how far apart would they need to be to generate 1 earth gravity and not affect the crew. I know from riding the round up when i was ...
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1answer
96 views

Gravitational forces affecting acceleration on a space ship with artificial gravity [closed]

I and my brother are having an argument on gravity on a space ship. For this argument lets say, you are in a void. There are no outside gravity forces, ie planets or solar systems in the near region. ...
6
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1answer
867 views

Artificial gravity on Mars

It is well-known that the lack of gravity during spaceflight is a cause to many sorts of health issues. It is thus expected that Martian gravity (significantly lower than Earth's) will have influence ...
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5answers
446 views

Could an aircraft ever simulate Martian gravity perpendicular to the aircraft's floor?

Suppose I designed a complex, self-contained, robotic system to harvest and convert Martian atmospheric CO2 and ground H2O into rocket fuel (CH4 + O2) and after exhaustive computational fluid dynamic (...
3
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1answer
168 views

Is there a way to reproduce Earth-like gravity on a spacecraft close to a more massive body such as the sun?

My gut impression is that an orbit would negate the feeling of gravity, and that if gravity were to be felt, it would indicate the orbit is decaying; an orbit, in effect, is the speed (or is it ...
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2answers
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Why do space settlement designers use tori instead of cylinders for space settlements?

Almost all space settlement designs featuring artificial gravity by centrifugal force use the inner side of the outer part of the torus: Why is it that I see hardly any cylindrical-shaped artificial ...
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3answers
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Is is possible to generate centrifugal gravity by doing donuts?

With the correct rocket setup would it be possible to thrust around in a circle, like you would do donuts in a car, to generate centrifugal gravity?
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1answer
316 views

Artificial planet

If we have discovered artificial gravitational force, will we be able to create an artificial habitable planet in our solar system? E.g., if a rotating cylindrical object in space can produce ...
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2answers
352 views

static energy artificial gravity

We did this expariment at home. It was a lot of fun. But it got me thinking. The water in this picture is atracted to the balloon because of static. so couldent a simular principle be used to creat ...
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Linear acceleration used for artificial gravity. [duplicate]

If we could actually get to the point where technology allows us to accelerate to 1 g for more than a few minutes, would that acceleration still need to be constant? Since a spaceship can't slow down ...
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2answers
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Was the Space Shuttle ever rotated to induce artificial gravity?

The Space Shuttle was a fairly compact transportation vehicle in terms of the amount of space available for astronauts to move around. Did they ever attempt to roll a Space Shuttle to induce ...
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1answer
267 views

The best shape and orientation for a space station

If you build a space station in the shape of a cylindrical wheel and construct it so that it spins around a central docking point in order to create artificial gravity would it be logical to orient ...
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2answers
952 views

What is the gravity inside a rotating cylinder?

There is the popular question “What is the gravity at the center of the Earth?”. And the answer is zero, because the forces cancel out. And then the gravity increases linearly as you move to the ...
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1answer
181 views

How the interface between de-spun platform and rotating parts of a spacecraft with artificial gravity could work? [duplicate]

You might have seen large rotating wheel space stations with central de-spun hubs or platforms in sci-fi movies like The Martian. My question is, how could the sealing between the rotational and ...
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0answers
198 views

Would pole dancing cure microgravity health issues?

It is often suggested that gravity should be simulated by rotating the entire habitat module of astronauts in microgravity. But wouldn't pole dancing be enough? The individual astronaut swinging ...
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Why is tethered artificial gravity hardly ever considered?

When you ask about rotating artificial gravity (yes, yes, technically radial acceleration), most answers boil down to "you'd need a 200m diameter spacecraft, and we can't build that yet" But, of ...
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How can veriable artificial gravity be created in a full colony on another planet, or moon? [duplicate]

Gravity on other planets or moons do not equal that of the Earth. If an Earth-equivalent gravity is required then can this level of gravity, or any level of gravity, be created artificially? ...
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2answers
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Is it possible to create artificial gravity in a habitat in space, or on another planet or moon without spinning the hull of the habitat

I've seen many designs for creating artificial gravity within a habitat in space by rotating the habitat about a central axis. With today's science, can artificial gravity be generated in a vehicle, ...
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4answers
14k views

Why can't spaceships just accelerate to create gravity?

The answer to What happens to an astronaut who's floating in a spaceship (in space) when it begins to move? is that we can create g-force just by accelerating. So then why go all the way to create ...
4
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1answer
147 views

Have any mammals been exposed to micogravity longer than humans?

There are mice on ISS. Not the first non-human mammals and likely not the last. Their health provides insights on influence of microgravity on organisms. Very few humans stayed in space for longer ...
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2answers
2k views

How much gravity is actually needed to avoid serious health consequences?

Most discussion I have read about using tethers and rotation in order to simulate gravity on spacecraft, talk about simulating Earth's gravity - 1g or 9.8m/s^2. Baked into the 1g figure is the ...
5
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1answer
750 views

In what way is artificial gravity expected to avoid/reduce bone loss?

It's my perception that discussions of the use of artificial gravity for manned deep-space travel missions are primarily centered on avoiding bone loss. Am I right so far? Microgravity seems to be ...
5
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1answer
161 views

How might artificial gravity experiments be conducted to determine adaptation in mice?

Astronauts in microgravity for extended periods experience a number of maladaptations, including bone loss, muscle atrophy and muscle mass loss, redistribution of fluids, and reduction in immune ...
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1answer
368 views

How rapid would air loss be in the event that a supermassive torus is punctured?

Artist's conception of a Stanford Torus. [Source] Consider a Stanford Torus of radius $ 4km $, with the inner radius of the torus ring being $1km$. Disregard structural stability issues. To simulate $...
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4answers
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How does centripetal force produce artificial gravity

I think I lack a fundamental knowledge of physics to answer this myself. In many sci-fi stories, there is a rotating spaceship that gives the feeling of being pulled "downwards" against the sides of a ...
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1answer
233 views

How much acceleration does it take for water to flow downhill?

Assume a hab in outer space with 1 atmosphere pressure and 23ºC (comfortable room temperature), To simulate gravity, the hab is spun. Acceleration is $\omega^2r$ where $\omega$ is angular velocity in ...
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1answer
307 views

Could the ISS be spun to simulate Phobos' gravity?

Before a human crew goes to Mars' moon Phobos or to even lower mass asteroids, could a long stay at such an object be simulated gravitationally in the space station? I've heard that the ISS people don'...
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0answers
8k views

Why is artificial gravity not included on space stations? [duplicate]

I'm wondering why artificial gravity is not included on the ISS, or on the currently planned OPSEK. There are long-term health effects of weightlessness, which would be avoided, using artificial ...
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4answers
4k views

Would a ball bounced in a centrifuge return to the floor?

In other words, does the centrifugal force inside a centrifuge only work to simulate gravity when an object is "attached" to the reference frame inside the centrifuge? 1G at sea level is normally ...
10
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1answer
721 views

Can humans play basketball in simulated gravity?

Rotating a spacecraft to create a simulated 1 g should cure most medical problems with microgravity. But can one play ball? A rotating spacecraft with several 10s or 100 meter to the center of ...
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2answers
2k views

Could magnetic “boots” be used to simulate the effects of gravity for asteroid ships?

I have been to the Wikipedia pages on alternatives to gravity, and found the usual alternative forces, with the potential for magnets and the specious Russian claims, but I'm wondering why not just ...
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2answers
1k views

Mitigating nausea when generating artificial gravity by centrifuge

When utilizing "artificial gravity" generated through a rotating structure using centripetal force, i.e. a centrifuge, is there a minimum diameter or some other attribute that causes or helps ...