# All Questions

20,980 questions
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### Is muscle plasticity the same thing as when muscles regenerate from wear and tear?

Information I am writing a fantasy sci-fi, that is almost the same as our reality, the only difference being humans in this world are capable of using drugs (serums in their world) to improve their ...
389 views

### Creating a chemical industry from a medieval tech level without petroleum

You've been transported into a world with a medieval tech level. This world has coal deposits, but no petroleum deposits. You have no chemistry equipment with you, but you can use glassblowing or ...
118 views

### Why would competing gods ignore an obvious power source? [on hold]

Human souls are energy sources that gods feed upon in the aether realm. This pushes them to interfere with the mortal realm and gain followers through worship. Messiahs, prophets, and all manner of ...
928 views

### Air bladders in bat-like skin wings for better lift?

Answers to this question note that human (and by extension mammal) wings would use naked skin instead of feathers, as we see on bats. However, with feathers, birds can have wings with shaped more like ...
111 views

### Climate or weather simulation - free tools

Are there any free living or discontinued tools that can simulate climate or weather? BYOE and Monash are only online web climate simulation tools. Some tools I tried: ClimaSim is only free climate ...
255 views

### How strong can zombies really be?

Assume that average Joe dies in a zombie outbreak and is revived as a zombie pretty much immediately. How strong could that zombie be, assuming that: Zombification is done by "taking over" the brain, ...
209 views

### Plants accidentally exposed to vacuum of space - Will the settlers save them on time?

A newly-built base on the moon has the first two compartments of a pressurized greenhouse farm. An airlock system automatically seals one compartment off the others when pressure sensors indicate a ...
138 views

### Creating a wormhole connecting two universes with different spacetime metrics?

A civilization wishes to create a wormhole connecting its universe to a universe with a different spacetime metric. For instance if we describe a timelike dimension with $+$ symbol and a spacelike ...
68 views

### How would a “year” comcept work in a planet that has the Three Body Problem? (And two more fantasy questions) [on hold]

I write High Fantasy books, with the craziest stuff in them, but I would like to keep this a little life like... So yeah, the planet is in a binary star system, and has a chaotic orbiting pattern ( ...
137 views

### Can you replicate a being's DNA just from observing it?

In the movie Captain Marvel, the main antagonists (at least for half the movie), the shape-shifting Skrulls, can change their appearance to perfectly match any humanoid creature, down to DNA. ...
207 views

### The handwavium drive is broken! Is there any hope?

I was recently looking at this question, which seems to argue that FTL travel within the existing laws of physics can risk resulting in the destruction of half the universe. (Specifically, bad things ...
3k views

### Multiple fireplaces in an apartment building?

I was working on a short story set in winter--a good time to contrast the cold, deprived life of the main character, reflecting his mental state, and the warmth and joy of other characters. There is ...
4k views

### Could moose/elk survive in the Amazon forest?

In my story, there is a civilization living in the Amazon rainforest. They need some time of mount that is adapted to the forest. I don't think horses can survive by themselves in there, so I was ...
274 views

### Is 'Black' Whitewash Possible?

Question: Is it technically possible to make a 'Black' Whitewash? True Whitewash is a plaster-like substance that has been used to coat stone and wooden walls for cosmetic and waterproofing purposes ...
90 views

### Feasibility of Thermoelectric Metabolism

Larry Niven's "Known Universe" (KU) features "The Outsiders" as one of its most prominent alien races. As per KU canon, the Outsiders evolved in a frigid moon (similar to Nereida) and they sustain ...
2k views

### How would I use different systems of magic when they are capable of the same effects?

Spells in this world is broken down into several categories, each designed to fill a certain niche: Enchantment Spells These are spells designed to capture cosmic power within a crafted item, so ...
6k views

### How to not starve gigantic beasts

If I create dragons to be castle-sized animals, how am I supposed to let them eat? Won't they need too much for an earth-like planet? I'm currently trying to build a world where a whole lot of ...
179 views

### Building a launch loop

A launch loop https://en.wikipedia.org/wiki/Launch_loop is a proposed way to put lots of things into space at lower unit cost than rockets (only need to pay the energy cost in electricity for each ...
175 views

### How would organisms adapt to survive darkness beasts? [expansion to my old question]

[This is an expanded/refined version of my old question: How would animals adapt to darkness-made beasts? ] Premise: 'Beasts'/Seraphins are other-worldly intangible beings (you can't touch them, but ...
2k views

### Is a self contained air-bullet cartridge feasible?

In my world, there is no access to modern or traditional gunpowder. I was wondering if a dedicated technician with a modern shop (cnc machines, and a surplus of parts and raw material, etc) would be ...
3k views

### How long can a nation maintain a technological edge over the rest of the world?

My question was raised by this post. Aliens crash-land at the Boston Airport (ie, in the United States). [...] The potential benefits of being able to reverse-engineer their tech alone is enough ...
2k views

### Could a cockatrice have parasitic embryos?

I had an idea to make cockatrices "realistic" (as in make a bit more sense) for what ever reason the noble cockatrice has evolved to use other species eggs for its own. It does this by "sitting" on ...
212 views

### Crash-landed aliens - political repercussions? [on hold]

Spinning off of the question "Can humans save crash-landed aliens?", I immediately wondered what the real-world political effect such a landing would cause. To summarize - Aliens crash-land at the ...
2k views

### Why is old stuff good? [on hold]

It's a common pattern in nearly any imaginary world that "ancient items are powerful artifacts" and stuff. But for what plausible reason? I'm trying to come up with some realistic explanation on why ...
2k views

### Could typically electronic sounds be generated mechanically?

I was thinking about our history of music, came upon electronic music and started musing about all the possibilities of modulation and such. I then thought back to a previous question of mine, "How ...
683 views

### Enclosed space colony and spread of common viruses

Cold and Flu, are common viruses which normally infect us in the cold of winter. Ironically, those people who always keep themselves warm, stay less out-of-the-house and office, keep their windows ...
733 views

### Can you make a star from other gases, and how long would they last?

In my Conworld, the inhabitants have discovered a type of star they cannot identify. I would like it to be a star made not from just hydrogen and helium, like our sun and countless others. But my ...
95 views

### Atmosphere of habitable world around K-type star

I'm trying to work out the parameters of my planet, using the spreadsheets that Artifexian has developed (particularly this Planet Calculator and this Atmosphere Calculator) as a guide. In order for ...
11k views

### Why did Europeans not widely domesticate foxes?

So I've been thinking for a while about making a world where cats aren't as common and instead are more of a regional domesticated animal, replaced in (mostly Northwestern) Europe by foxes. How come ...
158 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 ...
13k views

### Putting Ant-Man on house arrest

In Ant Man and the Wasp, Ant Man starts the movie on house arrest. House arrest is enforced by a standard ankle tracking monitor. Of course, this security mechanism proves woefully inadequate since, ...
82 views

### What would a typical battalion soldier day look like? [on hold]

I am wondering what a typical day for a soldier would look like. I am interested in a medieval setting. Like when do they get up, when do they train? What kind of food they have. Do they discuss ...
79 views

### Can we ever come out of the loophole if we're just characters in this game of universe? [on hold]

What if we human beings and the world around us, or say, the universe is just a game, a virtual reality game or maybe a game like second life, would anything be able to wipe us off, then? There are a ...
2k views

### What could prevent concentrated local exploration?

In my world there is a village with a hot spring, the only one on the entire island. The spring emerges from a local cave which has been filled / caved in by a past civilisation, since the water is ...
90 views

### How can we trap a soul immediately after a person dies? [on hold]

In other words, before the soul has time to move on to the afterlife (heaven, hell, purgatory, the next incarnation, etc.), how can one “catch” it and contain it (like the Aladdin’s genie was ...
33 views

### How large can a rocky planet be? [duplicate]

What is the maximum diameter and mass can a rock-based planet be before it collapsed to degenerate matter? If "rocky" isn't defined enough, assume basalt. "Degenerate" means the planet (or at least ...
127 views

### Habitability inside an enclosed solar system

In D&D Spelljammer, there's a concept of "crystal spheres" that enclose a solar system, with its radius being double the radius between the sun and its furthest planet. For my solar system, I did ...
450 views
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### How can I build a school around a particular form of magic?

Orgone is the measure of a person's connection with the cosmos. It is the conduit through which the power of the cosmos flows, focused through a sorcerer's will. Ritual practicioners must draw on this ...
99 views

### Last name earning system [on hold]

I just had an idea for a story based on Islamic Spain and Barbary pirates. But after doing some research I found some kind of chaos and randomness in last names. The people's last names are either: ...
83 views

### What happens to holidays as time passes? [on hold]

As the answers in How can I create original holidays for my world? discuss, humans in the "early days" of humankind had no science, so for questions like "why is winter coming?", religious beliefs ...
1k views

### How to achieve cat-like agility?

In my world there human-animal hybrids. My protagonist is a snow leopard-human girl (outwards looks almost completely human, except for the tail). These hybrids have been created through experiments, ...
232 views

### What range of colors is it physically possible for a humanoid race's skin to have? [on hold]

My story takes a sort of Shadowrun-esque approach to the concept of fantasy races, in that all members of fantasy races are, or are descended from, former humans transformed by magic, though in this ...
42 views

### Design of bunkers in a dystopian war - Student Film Project [on hold]

In a country where war has been going on for several years, the government has issued war safety bunkers to the people. The quality of bunkers vary according to the social status of people living in ...
46 views

### How do criminal activities take place inside of a prison? [on hold]

This question is broad and can be broken down into several subquestions: What crimes are part and parcel of prison life/culture? We commonly hear of contraband being smuggled inside prison. However, ...
377 views

### Is it possible to dye cloth/leather with blood?

Is it possible to dye leather/cloth with blood without it fading, perhaps by using a sealant of some-kind? Note: This would be in an apocalyptic world where advanced chemical compounds would have ...
54 views

### Underwater city where Humans can survive [on hold]

I'm working on a city underwater where Humans survive. The 'water' is some kind of fluorocarbon. Where Humans are able to breathe even though it is painful. I think about like inkts (sic) and stuff ...
3k views

### How to make an animal which can only breed for a certain number of generations?

What would be the best way in which to genetically modify (or create through some other method) an animal which breeds normally for a certain number (50?) of generations before becoming sterile? ...
138 views

### How can a person become completely mute without external indications?

I have searched for a while now, but I cannot find a definite answer. A character I am writing has been captured by the antagonist, operated on and released, now completely mute. I've looked ...