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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35
votes
11answers
7k views

Would humans be able to derive nutrition from foodstuffs found on alien planets?

Suppose humans have developed the technology to travel between star systems. This might be some science-fiction method like warp drive, jump drive, peanut butter drive, hyperspace drive or whatever, ...
6
votes
2answers
2k views

Creating a scientifically semi-valid super-soldier, part 1: Skeleton [closed]

Sometimes you just want to have a dragon, giant scorpion or a superhuman that has a bit more realism behind it than "it's strong, fast, can jump extreme distances despite it's weight and it's smart, ...
11
votes
4answers
551 views

Creating a scientifically semi-valid super-soldier, part 3: Physical shock resistance

Part 1 here: Creating a scientifically semi-valid super-soldier, part 1: Skeleton Part 2 here: Creating a scientifically semi-valid super-soldier, part 2: nervous system In most movies, comics and ...
13
votes
6answers
517 views

Creating a scientifically semi-valid super-soldier, part 6: Radiation protection

Previous parts here: Creating a scientifically semi-valid super-soldier, part 1: Skeleton Creating a scientifically semi-valid super-soldier, part 2: nervous system Creating a scientifically semi-...
8
votes
3answers
513 views

How could water breathing animals have a warm-blooded level of metabolism?

In the popular merfolk topic, I always use the model of marine mammals, not water-breathing fish-like animals. They breathe air, that turbo-charged 20% oxygen fluid that enables the scale of ...
5
votes
2answers
386 views

Creating a scientifically semi-valid super-soldier, part 5: Heart and circulatory system

Previous parts here: Creating a scientifically semi-valid super-soldier, part 1: Skeleton Creating a scientifically semi-valid super-soldier, part 2: nervous system Creating a scientifically semi-...
2
votes
3answers
1k views

Creating a scientifically semi-valid super-soldier, part 7: Hearing

Previous parts here: Creating a scientifically semi-valid super-soldier, part 1: Skeleton Creating a scientifically semi-valid super-soldier, part 2: nervous system Creating a scientifically semi-...
6
votes
1answer
361 views

Creating a Scientifically Semi-Valid Pseudo-Arthropod Primate Part 1: Pseudo-Dragonfly Wing Rib Muscles

Background As a parody of the super soldier questions and as an efficient way of organizing these questions I will now start this series of questions about Pseudo-Arthropod Primates. Questions from ...
34
votes
11answers
10k views

Why are low gravity humans depicted as TALL?

I totally get why humans who have colonised a low gravity environment (Mars or an asteroid, for instance) are skinny. Muscles doing less work, square cube law, force output of a muscle proportional to ...
8
votes
2answers
376 views

Are my wing-walking griffins viable?

This is the third question in a series of such for my worldbuilding project that deals with plausible fantasy creatures. Previously, I have pondered cockatrices and hydras, but now we move on to ...
15
votes
4answers
876 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 ...
8
votes
4answers
441 views

Creating a scientifically semi-valid super-soldier, part 8: Communication

Previous parts here: Creating a scientifically semi-valid super-soldier, part 1: Skeleton Creating a scientifically semi-valid super-soldier, part 2: nervous system Creating a scientifically semi-...
3
votes
2answers
549 views

Effect of sustained high G enviroments on the human body?

Tau Ceti e is possibly a good candidate for colonisation as it has a yellow dwarf sun like earth. But it's mass is estimated as >4.30 ± 2.1 of earth. (See Wiki) I remember from a documentary that the ...
7
votes
5answers
1k views

Humans with 360 Degree Vision across IR, Visible, UV and XRay?

Wearable and implantable technologies are increasingly blurring the line between natural and augmented reality. Currently, our commercially available computer-aided vision systems for the blind are ...
37
votes
8answers
8k views

How to modify the human eye to see into the ultraviolet and infrared bands?

If I'm writing a sci-fi story and I wanted to include humans with modified eyesight that see into the ultraviolet and infrared bands of the electromagnetic spectrum, what would I have to change about ...
17
votes
3answers
924 views

Could a Species Use Tools (and Build a Civilization) Without Thumbs?

If humans were to vanish completely from the Earth rapture-style, other primates would possibly slowly evolve and eventually take our place (in a few million years?), since they have both the basic ...
13
votes
2answers
523 views

Pharbohydrates vs Carbohydrates

Question: Are there are any serious biological or evolutionary plausibility issues with separating the energy storage/production function from the production of structural/regulatory biomass? ...
8
votes
2answers
241 views

The Biology behind a slime that uses hydrofluoric acid to disable and digest prey.

So I've been working on a low magic world where magic is actually just another form of energy that can be actualized, similar to alchemy in Full Metal Alchemist. Although development has taken a ...
6
votes
2answers
390 views

What is the best body plan to allow for giant size in a terrestrial animal?

My question is rather simple; assuming optimal atmospheric and planetary conditions, what body plan would be able to support the largest plausible land animal? To split the above question into a ...
5
votes
3answers
706 views

Are single-biomed planets (like in *Star Wars*) possible? [duplicate]

I know this may seem like an obvious no, but with the newest Star Wars movie just released, there is a mineral-rich planet called Crait which I have seen make a few debates about whether or not this ...
5
votes
2answers
619 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 ...
3
votes
2answers
250 views

How can a jet-propelled horse work?

I was reading more Laundry stories and just went through Equoid. The humorous "Procurement Specification" got me thinking. In a rational SF approach (as opposed to magic), imagine a civilization ...
3
votes
5answers
431 views

Multi-purpose Fictional Chemical Element Needed

I am looking for some guidance in creating a chemical element. I want to know if it is scientifically plausible for a single fictional element to do all the things I need it to, even if at a stretch, ...
2
votes
3answers
213 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?
0
votes
1answer
231 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 ...
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 ...
6
votes
5answers
445 views

Why would a biped evolve into a monoped?

Say that you have a medium-sized, bipedal, vertebrate-like creature. It no longer has the need to have arms, so they atrophied until they disappeared entirely. Now imagine an animal that shares ...
5
votes
4answers
174 views

Using science, how could an animal achieve lift/flight by using pressure?

Say for instance we had a humanoid creature. how would they achieve flight by taking in a gas then expelling it at a greater pressure from a point on their body like the feet, back, or hands?
4
votes
5answers
331 views

Swimming in the rain?

This question is inspired by salmon swimming up waterfalls. I am aware that it is an entirely different thing, but I felt that it was worth mentioning in understanding the question. “What would need ...
2
votes
4answers
257 views

biological cybernetics for human prosthetics

So in my book the main character loses his left arm (all the way to the shoulder) and is giving a prosthetic arm but I want the arm to be bio-cybernetic like I was thinking that the metal (can use non-...
2
votes
6answers
327 views

Food sources for engineered spaceborne life forms

Years ago, I was tinkering around with the idea of an engineered life form which could survive the vacuum of space and be made into a starship. I have since given up on the idea, but curiosity is ...
2
votes
2answers
254 views

Creating a scientifically semi-valid super-soldier, part 9: Temperature control

Previous questions here: Creating a scientifically semi-valid super-soldier, part 1: Skeleton Creating a scientifically semi-valid super-soldier, part 2: nervous system Creating a scientifically ...