# Tag Info

36

Velcro Velcro is easy to use insofar as you an put the 'fluffy' side of the velcro on almost any surface, and then just adhere the 'hook' side of the velcro to the underside of your shoes. Let's say you're on a ladder. Your hands can still grip the rungs covered in the fluffy part, but your shoes adhere to it, making purchase easier. Ideally, you'd also ...

22

Add railing If you really wanted to go out for a walk on your low gravity rock, and often, then your colony might want to invest in setting down some railing. Possibly everywhere. When you go outside you have a cord attached to you, and the other end you attach to the rail. You can use a simple clip. When you walk the clip slides and slides along with you. ...

19

Your martial artists will need 3 things; speed, flexibility and upper body strength. The real issue with fighting in zero G is purchase. When Chuck Norris stands his ground against an attacker, he does exactly that; The purchase he gets from his legs on the ground means that when he strikes, the momentum he's building with his fist, foot, shoulder etc. is ...

14

You don't actually need any footwear to move in micro gravity. Hands are the perfect tools to grab onto ladder rungs and with a little training, our toes can hold onto them fine enough. In micro gravity humans don't have to walk upright, they can pull themselves along handholds and ladders in all directions. The ISS is a fine example of how a single hand ...

12

A good BBQ has a few key attributes (aside from starting with quality raw meat, which has already been arranged): High and/or long-lasting heating. High heat for searing steaks and for cooking up burgers. Lower but longer-lasting heat for roasting a whole chicken, ribs and other large (especially thicker) items. Smoke. Bad for you, but adds flavor. This can ...

11

Cross country ski. http://runawayjuno.com/runaway-tales/sand-skiing-namibia-desert/ The vector forces entailed in cross country skiing are well suited for a low gravity environment. Rather than pushing downwards as with walking or running, one moves by shifting the weight and pushing off forward against the back ski. This was developed for snow but works ...

10

From Wikipedia The cracking mechanism and the resulting sound is caused by carbon dioxide cavitation bubbles suddenly partially collapsing inside the joints. The collapsing of the bubbles is due to pressure differential between the inside and the outside of the bubble. When we consider the pressure in a liquid, we can distinguish two components: ...

9

This question is ultimately about terminal velocity. The equation to compute this is... $$\sqrt{\frac{2mg}{ρAC_d}}$$ where m is the mass, g is acceleration due to gravity, ρ is the density of the fluid through which the object is falling, A is the projected area of the falling object, and $C_d$ is Drag Coefficient. Given your Assumptions The size of ...

8

Centrifuge looks like an answer, and actually was used in few books I've read. Fluid builds up due to lack of force pulling it down, right? It does not mind if that force is not strictly gravity. First solution is to build ring-shaped living area. Even for relatively small craft, I'd say at least 10m diameter, centrifuge could simulate gravity well enough ...

8

You have multiple options, you'll be pleased to know. Use a train The artificial gravity is a feature of your angular velocity as the station rotates. If you move in the direction of rotation, your angular velocity increases and you'll feel heavier. Move in the opposite direction and you'll feel lighter. If you put your training facility in a big train ...

7

Well, if you are floating into space you know that your body will be showered by a lot of photons with all energy flavors.. from radiowave to gamma ray... why not thriving on them, especially the most energetic ones (UV, X-ray, gamma ray)? You just need some molecules which can absorb the above said radiation, turn into an excited state and then relax back ...

7

Nice question! First of all, if you want to do martial arts in space, then the entire basis of martial arts would have to change. Instead of focusing on using gravity against the opponent, you would have to use momentum and power sources to power your punches. This would mean extensive training. First, I'm assuming there is a floor. Meaning, you're not ...

6

If your gravity is low, you need to be cold I think this is the 25th time this graphic has been posted to Worldbuilding. As you can see, the ability of a planet to hold an atmosphere depends on both the escape velocity and temperature. Lighter gasses (hydrogen and helium) required lower temperatures to escape, heavier gasses (like krypton, sulfur dioxide, ...

6

As You correctly guessed the "orbit plane" is actually a surface (no thickness), so the individual atoms of the space station would, if separate, be on different orbits and drift away over (short) time; of course they are kept together by direct interaction so structural strength of your space station won't have any problem in keeping it together. This ...

6

I can think of 3 areas for improvement. 1) As has been already mentioned, the control of muscle mass needs to be addressed, so that in a microgravity environment you get muscle rather than fat. Some sort of control of bone density is probably a good idea, too. Presumably the first generation of flight animals has to be raised in a non-zero-gravity ...

6

Animals in zero G experience the same problems humans do in that environment: loss of muscle mass and decrease of bone density. Astronauts run bungee-corded on a special treadmill to minimize these effects. I think it's highly unlikely you're going to get bessie on that treadmill... Honestly, if you're capable of genetic engineering a macro-organism like ...

6

Many comets have naturally-occurring deposits or constituents which are quite complex organic chemistry see here so perhaps you are a comet capturer and devourer. This could involve an externaslised machination and initial dissolution apparatus (think like an arthropod here) or could involve a complex mouth which is in effect like an in-body airlock. Obvious,...

5

Maybe you'll have durable sheets that can be washed and reused, rather than disposable. That would be handy for printers too, which can erase the fed sheets as well as print. Note this idea of plastic sheets is used in Marvin Minsky's novel The Turing Option. You might also combine e-ink sheets with traditional marking, or virtualize the marking like on ...

5

You might try eating earthworms: They are usefull for agriculture. They have proteins. They can be processed into burgers and nuggets. They wont suffer much from lack of gravity. Properly prepared eathworms...

5

If you are just worried about ionizing radiation then there may be biological solutions ... 1) Build a radiation-proof skin/shell. Possibly impractical, as radiation in space can be fairly penetrating - even a few mm of aluminium won't keep it all out. But you could develop a species with a very thick skin (inter-locking plates to maintain flexibility like ...

5

I am not sure that holding the feet somewhere would be of any help for moving in microgravity. Our body is used to either walk or swim. Walking for a biped is basically a continue series of controlled falls: the body leans forward, using gravity and feet traction to move and then the other foot to start te cycle again. Taking out gravity from this process ...

4

You can do this, perhaps, with a very precise combination of ultrastrong magnetic fields. This is called diamagnetic levitation and has effect on anything contaning water. In the video you see a frog subjected to a force of exactly 1 g, thereby floating in microgravity. Nothing would stop you from increasing that force and counteract a greater acceleration. ...

4

Put a bag around it. This isn't as far fetched as it might sound. I've seen numerous references to it in science fiction and other discussions. Sorry that I can't find them at the moment. Off of memory this was used in the Quantum Vibe web comic at some point in it's history. The main point is to cover the planet in a very thin plastic sphere and then ...

4

You could achieve a very similar zero-gravity effect with an atmosphere in which your creatures are neutrally buoyant. Jellyfish live in the water the way you propose. You could have a thick atmosphere, possibly composed in part of denser gases. If the mass of my own body's volume is the same as the mass of an equivalent volume of atmosphere, I will be ...

4

I would keep the hands without webbing. Otherwise your humanoid will have issues working with tools (etc). I like the choice of adding lots of extra limbs. On the whole I'd say this is one of the more sane winged humanoid designs: It looks well enough balanced to be potentially flyable. Your choice of cartilage for the wing "ribs" is a very good one ...

4

The simplest device would be a version of a solar cooker. Since we want to cook meat, the meat needs to be prepared and sealed inside a cooking vessel, as exposure to vacuum would rapidly dehydrate the meat and result in something resembling a piece of leathery jerky. While some people might even enjoy that, we are talking about a BBQ party. Earth based ...

4

As you pointed out, space is cold and insulating. You cannot rely on matter to exchange heat, this rules out conduction (you don't like shells) and convection. What remains is radiation: your body will emit thermal radiation and lose power according to Stefan Boltzmann law, $I=\epsilon \sigma T^4$. Since you want to keep this lost power low and not freeze,...

4

@Tim B II above raises very good point about lack of support from legs. Moreover, wrestling might be more viable than striking arts even here on earth. But it is not nearly as spectacular. So here are a few ideas (I do assume you are fighting inside a ship or station): Leaping of the walls will be limited to moving into/out of the fight, and ambushing ...

4

One way to have your "ngee" survive for a few days is to put him tank of water with a breathing mask. The buoyancy of the water will mitigate some of gravity's effects. There is an episode of the expanse which deals with this scenario.

4

Gel window cling polymer slime. https://desertlamp.com/happy-halloween-gel-stickers/ These things are popular and fun. They are made of hard tacky polymer goo. They will adhere indefinitely to a window. If you are making toys, you can adjust the tackiness to make something like the tumbling men - also polymer slime but gooeyer such that they stick then ...

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