Questions tagged [bio-mechanics]

For questions about the mechanical processes that allow organisms to live, including respiration, consumption, excretion. Focus on shapes of body parts and connections between parts.

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15
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14answers
5k views

Dragons have a constraint on muscle mass that isn't dedicated to flight. What's the best natural physical weapon for them?

Since the dragon lives in a forest, he limits the use of his acidic breath weapon on home ground to hit 'n run, supply destruction, and a way to deter his enemies and give him a chance to escape. ...
5
votes
4answers
196 views

Feasibility of Cyborg Trees?

I'm writing a thriller story about a group of explorers who traveled to a distant planet in the hopes of finding intelligent life, when the explorers arrived they discovered a planet that was full of ...
3
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0answers
46 views

A Creature Reliant on Mechanoreception to Hunt Prey? [closed]

I'm currently developing a military sci-fi concept and could use help working through some theoretical creature designs. During early concepting, the actual specifics of the creature-threat took a ...
4
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4answers
182 views

Can a biological system be used to power an android?

The purpose of this question is to know whether or not organic tissue can be used to power and android. Compared to a nuclear cell or an ordinary battery this doesn't seem efficient, it needs food, ...
6
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1answer
131 views

Are Air-Breathing Merfolk Viable?

I normally ask sci-fi questions, but oh well... It's fairly well established by this point that gills, while fine for fish, wouldn't work for mammals, as we need more oxygen than can reasonably be ...
3
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3answers
247 views

Is it possible to create an organism that is completely immune to radiation?

Radiation is the ultimate bane of all organic life. Its particles punch holes in our DNA, causing mutations and giving us cancer. But, is there a way to make an organism that is unable to get ...
7
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2answers
104 views

How can an amorphous creature change viscocity at will?

In my fantasy setting, slimes are a species of giant (about eight cubic feet), single-celled amoeba. They have the ability to freely change their state and viscocity, being able to "melt" into a ...
5
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4answers
235 views

How low can the density of a living creature be?

In the anime, called Attack on Titan, the primary antagonists are these huge, humanoid creatures, called titans. Titans have sizes between 15 and 4 meters. Larger titans aren't unknown, but they ...
0
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2answers
109 views

How strong, resistant and fast can a (humanoid) living being be?

How fast could run a humanoid being, how much damage could resist, how much weight could lift, how strong could hit, under the indicated evolutionary conditions? is there a limit? I have always ...
4
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1answer
122 views

How many people can a sealed 3x1x1 km biome support?

Question Context : Mars second moon Deimos has been converted into a generation ship. A considerable portion of its mass has been shaved off during the process & ejected backwards along its path ...
3
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2answers
156 views

What’s the fastest possible speed a human could move in a single step without some form of augmentations or assistance?

Im new here, so go easy on me if the question is a bit bland or improperly written. I just decided to post this question since I haven’t been able to find adequate answers to this question anywhere ...
2
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2answers
97 views

what materials can I use to bioprint a human skeleton?

In the grim darkness of the 22,d century, there is only war. humanity has waged war on itself for decades, turning many areas of the planet into wastelands. With every decade that passes, new weapons ...
5
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3answers
149 views

Anatomically Correct Propellers

NOTE: I previously asked the same question regarding wheels, because I thought that the answers would still help me and that wheels were more applicable to a wider audience than propellers. However, I ...
8
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2answers
347 views

Is a 500 kg flying creature possible?

I usually like to leave some wiggle room for myself when fleshing a concept out. Dragons make that sort of impossible, same's true for nanomachines but ripped senators are a question for another day. ...
2
votes
1answer
118 views

Would stronger tendons and bones allow for stronger muscles for the same weight?

Follow-up to this question: Would linear increase of a muscle's dimension increase the power as well? Let's suppose there is a genetically engineered creature that has the abilty to synthesize ...
3
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2answers
146 views

Would linear increase of a muscle's dimension increase the power as well?

The square-cube law applies to bodies with the same shape, and require them to be increased/decreased in all three dimensions. If you were to take a cube, with every edge being a long, and expand it ...
3
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2answers
202 views

What problems would arise if a species that uses wheels via electricity/conductivity instead of muscle tissue to move? [duplicate]

I've been thinking about making a species that uses wheels for locomotion. However, instead of using muscle tissue to spin them (as that would cause damage to said tissue), they would use electricity ...
4
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5answers
429 views

The anatomy of an organic microwave generator

I have a concept for a species of arctic-dwelling organism (let’s just call it a polar bear) that evolved an organ that was able to produce microwaves, which it uses to tunnel through ice. If such a ...
23
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4answers
2k views

What is the bio-mechanical plausibility of a fox with venomous fangs?

For context, I've been working on a fantasy race for use in a science fiction novel, the gist of which is essentially a red fox that has had its genes manipulated by a supernatural force with the ...
8
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6answers
466 views

How could dragons effectively use their wings as weapons in ground combat?

One reason I prefer classical western dragons over wyverns is that they aren't totally handicaped on the ground. However, those forelegs are only supposed to be for better locomotion on ground and ...
8
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5answers
315 views

Sanity check: 4D bio-wheels

In our 3D world, it is basically impossible to evolve living wheels, or helicopter rotors, or anything similar because free rotation of an axle dictates that there is no fixed connection to the body ...
8
votes
2answers
310 views

Wings for orbital transfer bioships? - The ascent

I've been looking at the altitude boosted SSTO designs from the 90s that were designed to be lifted to launch altitude by modified jetliners and thinking about bumblebees and wondering if bioships ...
8
votes
1answer
267 views

Developing a scientifically accurate species of dragon-like humanoids

I'm trying to figure out a way to make this species as I envision it while still maintaining scientific realism. I want to get it as close to "yes, this could exist in the real universe" as possible. ...
9
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4answers
862 views

Is a reptile with diamond scales possible?

I thought of a concept for a dragon or similarly gigantic reptile with a special adaptation, in which they’re born with scales made almost entirely of carbon. Then, over an incredibly long life cycle, ...
10
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6answers
2k views

Biology of a Firestarter

Biologically speaking, what would be the best real world explanation for a pyro, torch, fire-starter type mutation. Leeching heat energy from the environment might freeze dry your surroundings. ...
11
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3answers
2k views

How can dragons propel their breath attacks to a long distance

So if you remember my dragons: They aren't that big (roughly a shire horse in size, but a longer neck and a tail) They use graphene in their bodies, which might or might not explain how they fly They ...
12
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5answers
530 views

What minerals that are more durable than calcium would be suitable for bones?

Edit: I am asking in the context of alien life, should have specifyed that to begin with. I have many ideas for fantasy/sci fi races, and one that I kept coming back to is a species with bones that ...
6
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8answers
296 views

Could a medium sized mammal in the order carnivora evolve to be bipedal?

In the movie Guardians of the Galaxy (and a few others), we meet a bipedal raccoon known as Rocket (who I am aware did not evolve to be bipedal, but I am using him as an example). I honestly love the ...
3
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1answer
217 views

Where would padding inhibit a limb's movement the least in a quadruped creature?

Of the six limbs of classic dragons, the forelegs always stuck out like a sore thumb. They're dead weight in flight, etc... However, since in my setting you can find any sort of armament, short of a ...
5
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2answers
648 views

Can my heraldic dragons fly?

Heraldic Dragons Heraldic dragons are the creations of a mad god, called Anon, designed after the classical six-limbed ones. Measurements: Head+neck length: 180 cm Body length: 180 cm Height at ...
7
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6answers
530 views

Would it be possible to rearrange a dragon's flight muscle to somewhat circumvent the square-cube law?

The square-cube law holds true only for objects that are similar. In evolution, you can't make big leaps forward, but since most fantasy worlds are created by gods or people who think they're gods, I'...
8
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5answers
228 views

Living nests for insects - Part 1: Optimal Hive shape

I've been playing with the idea of living nests for insects for a while now to help populate my worlds. The idea is that they don't build a static nest out of wood pulp and other material but have a ...
16
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4answers
961 views

Dragon forelimb placement

Most dragons (before Skyrim and GoT) had six limbs in total, four legs and a pair of wings. The question is how would a dragon's forelimbs be placed? It's obvious they have good terrestrial ...
5
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2answers
245 views

Creating a scientifically semi-valid super-soldier, addendum: Metabolism

A while back Demigan had a running series of posts about various aspects biological enhancement for the purpose of designing super-soldiers with an element of (pseudo) science behind them. You can ...
4
votes
1answer
140 views

How can I increase wingbeat frequency for large flying creatures?

Flapping flight bumps into a size limit after a while because of wingbeat frequency. My knowledge on birds is rather limited, so here's how I interpreted that: A longer wing is a longer lever -> ...
3
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0answers
80 views

Monsters vs You /Dragons/ How to give them better resistance against firearms [duplicate]

Before we start, no, I'm not stupid, I know that I need this, agility and magic together to level the playing field, but one at a time. As I mentioned before, dragons can synthesize, break down, and ...
48
votes
15answers
13k views

What injury would be of little consequence to a biped but terrible for a quadruped?

Let's imagine a group of people who can turn from human to wolf at will. Wolves are quadrupeds, and humans are biped, so I guess their weight is differently shared in their body, notably when they ...
3
votes
4answers
190 views

Can you create a living vehicle fueled by organic material?

In this world, the vehicles are effectively re-engineered insects; enlarged bio-manufactured nervous systems used instead of engines; factory grown lightweight chassis / [wheels]. The fuel station ...
7
votes
2answers
280 views

Giving dragons more flight muscle

Okay, we know the type-IIb FG muscle fibers are the strongest stuff we can use. So, the only thing we can do is attach more, but how? Dragons are 180 cm tall at the shoulders with a total neck+head ...
0
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1answer
248 views

Would these structural reinforcements improve dragon wings?

So, I have devoted an unhealthy amount of my time to the dragon question, and a final solution will have to wait... for several thousand years at least. My original plan was to make them at around ...
0
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2answers
197 views

Realistic (sci-fi) ideas on how biological mind control could be possible through a virus infecting a person?

I've been trying to reimagine vampires using sci-fi science to explain the more traditional vampiric abilities. So far I'm quite liking a rabies-like virus to explain biting and regenerative rest. I ...
10
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4answers
2k views

Could 'robotic' prostheses be possible in the victorian era?

In my world I would like to have a cyborg-inspired veteran, but am not sure what kinds of prostheses would be possible, ideally without the use of electrics. My main concern is how the prostheses ...
6
votes
6answers
1k views

How might a purely mechanical 'voice' function?

In my world there are mechanical semi-humanoid automata. Would it be possible to make them speak in a fashion that sounds natural (i.e. human)? How might it function? The mechanism should be capable ...
2
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3answers
221 views

What kind of biological characteristic does a human being need to achieve great speeds?

In my book there is a tribe and one of the characteristics I describe is that they can achieve great speeds, something like 80km/h (50 mph) for 2 minutes approximately. How could it be?
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7answers
712 views

Noah fails his mission - what would Earth look like today and in the far future? [closed]

Assume that everything in the Bible is true up to the point when Noah built his ark and the flood came. This happened in 2348 BCE. Unfortunately the Ark was badly designed and sank almost ...
2
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1answer
217 views

Controlling Nanobots in the Bloodstream as a Form of Torture?

An oppressive government entity roughly 70 years in the future has access to elite--albeit experimental--technology. One such technology is a brain chip that allows its soldiers to control simple ...
6
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2answers
370 views

Dragon flight muscles

So, Mark Witton had a lengthy article on why paleontologists think the Quetzalcoatlus northropi could fly. One interesting thing about it is that Witton and Habib think the Quetzalcoatlus had a 90-...
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1answer
144 views

How much pneumatization is possible? [closed]

So, one of the most common theories about how dragons could maybe still fly, the living gasbag theory. Basically, most of the dragon is a cavity filled with lifting gas or air, in order to reduce its ...
3
votes
3answers
212 views

How could dragons run?

You already know the drill: Dragons stand 195 centimeters at the withers, normally 2,95 meters at the top of the head when standing still They can't fly They weigh: 1179 kilograms You're not allowed ...
17
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5answers
5k views

Fart & Furious: flatulence as acceleration booster possible?

It's the Olympics, and it'll be one the world won't soon forget. The sprinters are in position on the starting blocks, the signal is given and the runners are off! However, one man gives off a fart so ...