text
stringlengths
22
2.11M
[Question] [ This is a suggested question by Monica Cellio, who I want to thank for providing. I hope I kept the idea in spirit as possible. How to build a world that can still be reused if the associated work to be published is rejected? For example, I may write a story that is incorporated into a world I built. If ...
[Question] [ What if my world had instant communication via some magical means, such as a scrying device that allows two wizards on the opposite side of the world to hold a conversation? The technology level is pretty much standard medieval Europe right as the printing press is being invented and the world is just st...
[Question] [ **Closed.** This question is [off-topic](/help/closed-questions). It is not currently accepting answers. --- This question does not appear to be about **worldbuilding**, within the scope defined in the [help center](https://worldbuilding.stackexchange.com/help). Closed 6 years ago. [Improve this que...
[Question] [ If the gravity on earth was different, how would our bodies change? For this question, assume that gravity was five time stronger (5G) from the beginning of the Earth. Would a human-like body still be able to evolve? If so, how would it differ from the bodies we have? [Answer] If gravity were five tim...
[Question] [ The planet is a barren rocky dwarf planet which orbits at 0.05 AU from its star of 0.9 solar masses, at 6 billion years old. Because of this, it’s surface is melting and evaporating, forming a thin atmosphere, which is continually being blown off by solar wind, recondensing into dust which is spread thro...
[Question] [ Just wanted to check the scientific feasibility for a method of moving a shuttlecraft from the surface of an earth-like planet into space. This more for a space opera style setting, rather than strict hard sci-fi. In many works of science fiction, ascending into space in a small craft without the aid of ...
[Question] [ Let us suppose that ten high kiloton to low megaton range fission/fusion weapons are being detonated between three and five kilometers under the surface of the sea on a planet much like earth, in a solar system much like our own. The detonations occur within a distance of several kilometers of one anothe...
[Question] [ **This question asks for hard science.** All answers to this question should be backed up by equations, empirical evidence, scientific papers, other citations, etc. Answers that do not satisfy this requirement might be removed. See [the tag description](/tags/hard-science/info) for more information. The ...
[Question] [ One of the most overlooked traits of vampire biology is superhuman strength. In fact, Dracula himself was described as having the strength of twenty men. Now, this description posed a physical problem because this is how the Count originally looked: [![enter image description here](https://i.stack.imgur....
[Question] [ I've seen several people independently come up with the idea of three or more sexes where one sex is responsible for brooding the young (pregnancy, pouch, feeding, something along those lines) but doesn't actually contribute any DNA. Can you suggest some an evolutionary mechanisms that would support the ...
[Question] [ Imagine a world quite like our own, except where technology took a different turn. Instead of researching communication, transportation, the cosmos, and the general nature of the universe, scientists researched biology and how to manipulate it. Here, if you have enough money, you can get one more arm, f...
[Question] [ Alright, this will take some time to explain. There is historical context to my question. Over the course of the period of time from 16th century to the first half of 19th century, the [European muzzleloading naval cannons](https://en.wikipedia.org/wiki/Naval_artillery#Age_of_Sail) were progressing towar...
[Question] [ The question is just as simple as it sounds. Would it tuck them under like a bird? make running motions like it does when running on the ground? some other movement that actually aids in flight somehow (if so, what is it?) Assume the standard trope Pegasus, an otherwise normal horse with the exception o...
[Question] [ I'd like to create a sci-fi story with a country or planet where only men are allowed to live and they use in vitro gametogenesis and ectogenesis (artificial womb) to have children without any woman. If new reproductive technologies like in vitro gametogenesis (IVG) and artificial womb s(ectogenesis) bec...
[Question] [ Previously, I had asked [a question](https://worldbuilding.stackexchange.com/questions/142211/a-permanent-norse-presence-in-america) on what point of departure I would need to make the Norse's presence in North America permanent. Perhaps the best answer I got was summarized right here: > > If one man ha...
[Question] [ I've been working on a constructed world which started out as the home of an alien race from a sci-fi story I'm writing but just became a pure world building project. As you can see from the map it has one major continent, one minor continent, and several islands. The poles are nothing but water and ice ...
[Question] [ The secret police of my fictional country (unoriginally) uses sodium thiopental in medical interrogations, usually in combination with various forms of physical torture. An antagonist (a courier of smuggled goods) who is detained by them and injected with a thiopental-based serum suddenly dies before the...
[Question] [ So lets say that the level of the non-magic wielding species i.e. humans technology is at around the level it was in the early medieval times. I would then introduce magic to the rest of the world in a form of a new species. The species i.e. elves would have lived within the world but hidden from the hum...
[Question] [ **This question asks for hard science.** All answers to this question should be backed up by equations, empirical evidence, scientific papers, other citations, etc. Answers that do not satisfy this requirement might be removed. See [the tag description](/tags/hard-science/info) for more information. In m...
[Question] [ Let us assume a sufficiently earth-like moon, like Europa. It orbits a gas giant. The whole setup is within the star's [goldilocks zone](https://en.wikipedia.org/wiki/Circumstellar_habitable_zone), so the moon is theoretically habitable. 'Day' is one rotation of the moon around itself, 'month', for the s...
[Question] [ I'm trying to develop a planet which has somehow developed sentience. By sentience I mean more of an animal intelligence than being a person. So far I've got a couple of ideas: 1. It's actually a species similar to a fungus or another type of creature that has basically merged itself over time with the p...
[Question] [ I'm considering creating a fictional multi-national black ops unit called S.W.O.R.D [(Special Worldwide Offensive Resolution Division)](http://tvtropes.org/pmwiki/pmwiki.php/Main/FunWithAcronyms) designed in a highly organized and militarized manner such as you might find with [Ancient](http://tvtropes.o...
[Question] [ # Executive Summary Thank you for considering **Chronograph Talent Consulting** for your talent acquisition needs. We select the best talent from all previous periods of human history and make them available to clients looking for the absolute finest talent that money and time can provide. Our talent por...
[Question] [ Let's suppose that a fusion bomb device with a yield of 200 megatons (4x Tsar Bomba) is detonated in Mare Tranquillitatis on the Moon. My question is: * Would the explosion be visible from Earth at night? I imagine that it would be a flash followed by the covering of the explosion site in dust clouds. * ...
[Question] [ What kind of prosthetic technology would be available to a wealthy but rural aristocratic person without a leg and how would it affect their social standing? The time era is sort of pre-Elizabethan, but as it is fictional I can change certain aspects of it to fit the medical aspects of amputation if nece...
[Question] [ I'm looking for a very grounded evolutionary justification for the existence of a hermaphroditic sapient and social species, preferably roughly mammalian but not mandatory, which is not as easy as it would appear to justify. In the real word most hermaphrodite species are simple species, and most live in...
[Question] [ It is the year 2055. Only 20 years after the devastating Third World War, humanity has united together to start a golden age. Overseen by a peaceful, ambitious, and global superpower called United Earth Republic, war has finally been eradicated. Technological advancement and exploration has skyrocketed t...
[Question] [ I always feel like "hypothetical history of science" questions are kind of impossible, but here's a go anyway: Imagine that, for the entirety of human history, EM radiation from anything beyond the Kuiper belt was totally obscured. No star besides the sun had ever been observed, and in particular no larg...
[Question] [ A common feature that we consider to be alien is the eyestalk and rightfully so. To my knowledge the only vertebrate that even comes close to having eyestalks is the hammer head shark (if you can even call them stalks). Sure, many species of insects have evolved eyestalks, but they are unlikely to evolve...
[Question] [ I'm still in the process of building my fictional language. However, I need some help in creating a realistic drifting effect for my language over time. *By linguistic drift, I mean the natural change in a language's vocabulary and syntax over time.* An example in English is the question **"Whom did you ...
[Question] [ All multi-cellular life as we know it is composed or eukarotic cells -- cells with a nucleus. Some single-celled organisms are eukarotic, some are prokaryotic (cells without a nucleus, such as bacteria.) Brief research indicates that prokaryotic multicellular life would be unlikely. But would some other...
[Question] [ When intelligent beings are first evolving and starting to explore the world there are a lot of unexplained things. Scary things, strange things, wondrous things. In trying to explain those things a natural first step is religion. Why does thunder happen? Thor did it. Why do people get sick? Evil spirits...
[Question] [ I am developing a world on this continent: ![enter image description here](https://i.stack.imgur.com/njs4D.jpg) To know the world, I have to know how the weather works. Inside the white line is the continent. The blue arrows denote the flow of water. Up is north, down is south, left is west and right is ...
[Question] [ Well I was in the process of designing a world for my new RP. I briefly had the idea that this world could be a psuedo-sci-fi far-flung future Earth but eventually dismissed it, because I wanted too many fantasy properties in it. However, I thought I'd open up my theories on this to this stack and see if...
[Question] [ It **finally** happened. The inhabitants of Metropolis, the capital of Our Nation, have finally had enough of the swampy lands, suffocating summers, freezing winters, spring floods, risk of surprise invasion by sea and whatever other nastiness the local geography had in store for them. **They have decide...
[Question] [ The setup: Near future (maximum 50 years in future) where "only" thing changed is, that company SpaceX together with NASA and ESA found out, how to get cargo and people to space *very cheap* USA decides to build a space prison. Because - it would be nearly impossible to escape from it. Now the question. ...
[Question] [ This question was stimulated by the question [How would an aquatic race develop computers?](https://worldbuilding.stackexchange.com/questions/3722/how-would-an-aquatic-race-develop-computers). The answers obviously were based on the aquatic civilization being earth based, but what about a totally aquatic...
[Question] [ | Let's say you're in Atlantis, | which happens to be 1 km below sea level | | --- | --- | | It's also at equilibrium with the sea. You have been born there and are fully acclimated to the pressure, in air which is made of a mixed gas with the right proportions for human life. This is because, just like...
[Question] [ Countless times in science fiction I have seen civilizations that rely exclusively on biotechnology; These societies, often due to environmental factors, never invented certain basic technologies needed for a conventional industrial-age technological environment, nor any of the technologies a conventiona...
[Question] [ There is an odd species of creature with striking resemblance to a reindeer called Rudolphie, it has a red hue on its nose due to constant exposure to the cold condition of Arctic tundra and being bred by the Yeti to pull heavy sleigh. Eyewitnesses reported they saw the nose of Rudolphie emitting alterna...
[Question] [ If I'm understanding the chart correctly, in order for a planet with lower gravity than Earth (smaller than Earth), but with decent magnetosphere, to hold on to an atmosphere with oxygen, and water on the surface, that planet would have to be in the blue but can be close to the green (between Venus and M...
[Question] [ In *How the Grinch Stole Christmas*, the town of Whoville is situated between a few drooping mountains. Here's an example taken from the movie: [![Drooping Mountain: Mt. Crumpit](https://i.stack.imgur.com/1KVBA.jpg)](https://i.stack.imgur.com/1KVBA.jpg) The tip droops, and the mountains can rise either s...
[Question] [ In our world, humans evolved and spread to pretty much every place in the world they could reach. Would that still be the case if there were, say, a dozen different humanoid species? Would they all fan out into every place that suited them, or would they tend to stick to their own areas and avoid the oth...
[Question] [ ***This question was edited based on answers already submitted***. I am designing a universe with both time travel and alternate realities, but I don't want the whole thing resting on hand-waving and paradox. I understand just enough theoretical physics to get in trouble. To resolve the paradoxes I see w...
[Question] [ In my story people are traveling from somewhere beyond the opposite side of the galaxy to Earth. The distance traveled is approximately 66 million light-years. I would like the travelers to experience 2,000 years of time. How close to the central black hole must the travelers pass and at what velocity mu...
[Question] [ I was recently looking at [this question](https://worldbuilding.stackexchange.com/questions/138559/how-to-prevent-superluminal-traveling-idiots-from-wrecking-half-of-the-universe), which seems to argue that FTL travel within the existing laws of physics can risk resulting in the destruction of half the u...
[Question] [ I have some alien creatures which are essentially land-going octopoids somewhat larger than humans. Tentacles not being a good form of propulsion on land, they have rudimentary 'legs' with one bone each (I envisage something like cuttlebone). Would this be enough for a slow, shuffling walk? Do I need any...
[Question] [ Based on a previous question asking about mechanical computing (Babbage engines, etc.) I wondered how a steampunk story could present the concept of a modern computer monitor in a steam-driven mechanical world. **Background:** While pondering the problem of shrinking or otherwise utilizing mechanical com...
[Question] [ I've got these 2 giant apes like creatures who are too heavy to go on the ship to be taken to another continent. What are some ways that they could possibly get across the sea? This is a medieval epic fantasy so I can't really fly them etc.. My apes are 12 feet tall and weigh 18,000 kg. They have to trav...
[Question] [ [Segue 2](https://en.wikipedia.org/wiki/Segue_2) is a galaxy with only about 1000 stars and is 111 light years in radius. It has a light output only 900 times that of our sun. (This is a real galaxy in our universe) However, I want my fictional galaxy to be small but have many habitable planets. Is it pl...
[Question] [ [Zerg Overlords](http://starcraft.wikia.com/wiki/Overlord) are flying alien creatures that aid their broods by managing lesser members of the swarm, transporting units within their carapaces, and alerting a hive about any danger they perceive with their heightened senses. [![An overlord, hanging around a...
[Question] [ In a lot of media one can see moons or other planets that cover a significant portion of the sky (like the background on this page for example). This could be because the moon is actually large or because it's close. Presumably, though, if a moon is *too* close or *too* large it will cause catastrophic g...
[Question] [ **This question already has answers here**: [How would my dwarves tell time underground?](/questions/53090/how-would-my-dwarves-tell-time-underground) (6 answers) Closed 6 years ago. The majority of the calendars on earth have used either lunar or solar cycles to keep track of time, ie days, month...
[Question] [ Say you are a plant-based life-form (imagine a walking tree). You have roots and leaves. You have two main vulnerabilities: 1. You need sunlight on your leaves for photosynthesis to get energy. 2. You need to root yourself in the earth occasionally to absorb water and nutrients. And you also face a serio...
[Question] [ On an Earthlike planet with one large moon (just like Earth's), I have a large landlocked sea with one narrow exit (like the Black Sea, but much larger, something like six or eight Mediterraneans, with an exit about 10-20km wide). How extreme will the behaviour of the water be with the changing tides? ...
[Question] [ I want to have a [star cluster](https://en.wikipedia.org/wiki/Star_cluster) of [main-sequence stars](https://en.wikipedia.org/wiki/Main_sequence) (yellow dwarfs [like our sun], orange, and red dwarfs) that are on a distance of 1-2 light years between each other, so interstellar travel is possible even wi...
[Question] [ I'm asking for a world I'm making, which orbits a red star. According to this image, there is a star that would make the sky white. ![enter image description here](https://i.stack.imgur.com/6UmzE.jpg) What would the sky look like during sunrise and sunset on a planet orbiting that kind of star? [Answe...
[Question] [ ## Context Six thousand years ago, magic users from Earth managed to create a portal between Earth and another planet, far far away. This planet is Earth-like but developed no life forms whatsoever. Its new population started to terraform it, using both magic and biology. But even with magic, the process...
[Question] [ Would it be possible to have a planet made up of about 60-70% water with no landmasses larger than Australia? I would like this planet to be as earth like as possible, but I'm open to changing aspects of it, such as rock composition, size of tectonic plates, etc. [Answer] Yes it is possible to have a ...
[Question] [ In early 15th century Europe, a cataclysmic event causes a tropical jungle to cover the whole world. The jungle is populated by very dangerous, aggressive monsters (think [Pitch Black](https://en.wikipedia.org/wiki/Pitch_Black_%28film%29)). For unknown reasons, there are some safe zones of variable size...
[Question] [ In most sci-fi literature, the 'human bias' is very visible in every aspect of fictional universes. Here are some examples. Future technology is just a modified version of today's items. In *2001, a space odyssey*, tablets are just minified televisions. In the eighties, smart watches were imagined as m...
[Question] [ Imagine somebody puts a laser cannon in orbit. For my question it probably won't matter if it was a Bond-style villain or invading aliens. This laser cannon is powerful enough to destroy a tank on the surface of Earth, or perhaps even a bunker. **What would an observer on Earth see?** * Would a short pu...
[Question] [ Another question for my comic: my friend has made a demand that I give one of her characters a flying mount, preferably griffin-like. I have some designs but I want them to be plausible: * How bulky and how big can I make this creature? * What air density and such can I change in the planet's atmosphere ...
[Question] [ Okay, so it's kind of a silly question, I think, but the idea is to design an effective timeline leading from present day to roughly one hundred and fifty years into the future. I have a pretty good idea of what I want the world to look like (setting is science fiction/cyberpunk/dystopian/apocalyptic), s...
[Question] [ Bioships - biological spaceships - appear in a lot of SF, so I thought I'd have a go. However, in most books they are depicted as more powerful than conventional tech in all and any regard. This is unlikely as any given biological system can be outperformed by a mechanical or electrical one. However, if ...
[Question] [ I am writing a YA adventure novel that takes place in a domed city. For my model of the dome, I am using the Mir mine project design: <http://www.wired.co.uk/news/archive/2010-11/17/russia-domed-city-siberia> My story is taking place in the US and the city will have been built on the site of a rather l...
[Question] [ Is there any conceivable way that a planet with two moons--one being visibly red to the naked eye due to its mineral composition--could align in an eclipse in such a way so that the whole effect looks like a glaring eye in the sky, with the smaller red planet as the "eye's" pupil? [Answer] So you have...
[Question] [ Would it be possible for a creature to have a nervous system working at 250 volts? What kind of physiology would it need to sustain that? Could you use that creature as a power source, to power a television set, for example? [Answer] **It would be infeasible to use such high voltages for the entire ne...
[Question] [ Imagine someone wanted to divert a specific asteroid to impact the earth. The [Current Impact Risks](http://neo.jpl.nasa.gov/risk/) page at nasa.gov shows a list of known impact risks based on observations. Most of these asteroids are very small; this person would not be interested in them. Some of these...
[Question] [ I'm thinking about creating a creature that can eat *anything*. Perhaps a rock, if it looks "tasty", or a chunk of a spaceship, or even a piece of itself if it wishes. Of course, it seems silly, so perhaps there are some materials that are impossible for it to eat (its stomach?), and the question is: **H...
[Question] [ Within the Star Wars Extended Universe, there is a science base on a small object within a near impenetrable sphere of Black Holes. Is this possible? *The place referenced is called the [Maw Installation](http://starwars.wikia.com/wiki/Maw_Installation)* [Answer] Under the circumstances you describe, ...
[Question] [ I had an idea for a world where tin and copper are both easily accesible and usually found close to each other enough that it is a non-factor. Bronze is pretty much the main alloy for use in anything, since iron is very rare. It exists and people are even pretty competent at handling it and making good q...
[Question] [ Historically, the Byzantine Empire used ship-mounted Greek Fire throwers to defend Constantinople. These weapons were pretty advanced and horrifying for the enemy. **The existence of these historic vehicle mounted flame throwers made me wonder if there is any good reason why the Byzantines couldn't have ...
[Question] [ The advanced civilization in my story is trying to reach as many galaxies as possible in the next few billions years before the expansion of space has sent those galaxies permanently out of reach without some form of FTL travel which my story does not have. I plan to have von Neumann probe-like self repl...
[Question] [ In many fantasy works, the world typically has giant caverns that house entire civilizations and ecosystems that are (mostly) disconnected from the world above. However, this concept, at least in an earth and non artificial setting, is practically impossible. With that in mind, what I'm asking is: **How...
[Question] [ A giant pacific octopus has around 250 suckers per arm that it can use to manipulate small items. If theoretically, one of these animals was given human intelligence, and of course proper medical training, would they be able to do something as delicate as surgery? The surgery takes place in a low gravit...
[Question] [ I'm creating a D&D campaign which takes place on a Mercury-sized planet, orbiting a Proxima-Centauri style red dwarf. It is tidally locked. I would like it to make physical sense as much as possible, and only use magic or hand-waving if there is absolutely no alternative. I would also like the sun to app...
[Question] [ I'm providing an interesting twist on the Anatomically Correct series by focusing on a single body part instead of an entire organism. --- The following image depicts the average range of the cones of a normal human eye. Each cone allows the eye to see within a different range, and combining those ranges...
[Question] [ If germs from the past was brought to the present/future on a person (or by some other means of transportation) and we have immunity to its descendants, like the modern germs for example, would we be immune to the germs brought to the present? I have only seen conversations about people bringing germs fr...
[Question] [ In our world, mountains generally only move up (while forming) or down (while eroding or sinking). Otherwise they follow the tectonic plates they happen to be on. In island chains like the Hawaiian archipelago it may seem that they are moving but actually some plate is moving apart from another one, with...
[Question] [ It's a basic fact that most plants need sunlight to generate growth. Sure, they also need water and nutrients, but their reliance on sunlight is the one sole thing that separates them from animals. Now, compare our sun to our moon. Even at its fullest, moonlight can only get to an apparent magnitude of -...
[Question] [ So, let’s say Bill wants to gain immortality. Bill is a billionaire, and so invests a large portion of his estate to Brain Transplant research. After a bit, the doctors vivisect him, and encase his brain inside of a robotic shell. My question is, since his brain is still needing of nutrients, how would t...
[Question] [ Around Earth's equator, there's a band of low pressure called the Doldrums. 30 degrees north and south are bands of high pressure called the horse latitudes. Finally, there are more low-pressure bands in the polar regions called the polar fronts. Air moves from the horse latitudes to the low pressure are...
[Question] [ I'm trying to build an underwater ecosystem under the ice crust of Ganymede. I know Jupiter emits a large amount of ionizing radiation and synchotrons and thought that would maybe be able to replace sunlight in this ecosystem. My idea is some sort of large organism that would burrow into the ice with roo...
[Question] [ ## Information I am developing the culture of the dwarves in my fantasy world, and I am interested in a calendar system for my dwarves. Yes, I am aware of the question [How would my dwarves tell time underground](https://worldbuilding.stackexchange.com/q/53090/28789), but I was wondering how dwarves woul...
[Question] [ One of the trickiest things I had to do when coming up with my urban fantasy story full of superpowers was finding a consistent set of rules to justify why people can use powers like invisibility, wall-phasing, shapeshifting or teleportation and not have to be/become naked to do it. Eventually I managed ...
[Question] [ Imagine that, in the near future, pollution, overpopulation and war leads to a *massive* extinction where almost all chordates, some invertebrates and many plants are wiped out. Small, resilient plants, insects and the like remain, but all megafauna is dead. Then, mere decades later, an interstellar ark ...
[Question] [ I have a world I've been developing whereby the entire world is locked in a cycle of perpetual winter. The "seasons" still exist but are merely a spectrum of mild cold ranging toward horrific winters. More or less it is the Antarctic but across the entire surface of the planet. Inhabitants have created ...
[Question] [ This is one of a series of questions centered around living on a giant tree. The setting/scenario is described below: > > In my fantasy world, elves live on a giant tree, very similar in structure to a [Banyan Tree](https://en.wikipedia.org/wiki/Banyan). The elves live on the branches of this tree, whi...
[Question] [ I'm working on a quest (Space game, but don't ask, it won't be good in anything but story and even that may be a stretch. XD), and I'm looking to use our solar system, Jupiter and Saturn specifically, as a point of farming for my main character ([He-3](https://en.wikipedia.org/wiki/Helium-3), yknow), and...
[Question] [ **This question asks for hard science.** All answers to this question should be backed up by equations, empirical evidence, scientific papers, other citations, etc. Answers that do not satisfy this requirement might be removed. See [the tag description](/tags/hard-science/info) for more information. So, ...
[Question] [ I have wondered what a terrestrial ecosystem would look like dominated by cnidarians and ctenophores rather than insects and tetrapods. In order to fulfill the same niches I imagine they would need to be highly derived compared to their ancestral forms. Since their physiology is so different I am having ...
[Question] [ **Setting:** * Partially rebuilt post apo world, normal sex ratio * Technology: comparable to early XXIst century * Affluence: first world equivalent * Mixed economy, semi-authoritarian system, low level of corruption **Info concerning aims:** * rebuilding population possibly fast, while maintaining high...
[Question] [ I have created a world map for a story I'm making. And it has been too long since I studied geography and geology. Assuming earth-like conditions, and a normal distribution of climate based on (approximate) lines of latitude (equator, tropics, arctics), what regions would have unique climates owing to at...
[Question] [ Would it be possible for an asteroid in solar orbit to go near enough to the Earth that the Earth's atmosphere slows it down into an orbit that is, aside from its low perigee, stable without using a third object (such as the moon) to slow down? Or would the necessary forces destroy the asteroid? If this ...
[Question] [ A naga is a snake with a human's head and torso. I want my naga to be huge, probably seven or eight feet tall. However, if you look at a picture of a snake in real life: [![enter image description here](https://i.stack.imgur.com/tI8PY.jpg)](https://i.stack.imgur.com/tI8PY.jpg) [Source](http://pix11.com/t...
[Question] [ You all probably know what a [starfish](https://en.wikipedia.org/wiki/Starfish) is. When a starfish is ripped in half, if each half has part of the central disk, then it can regrow into two starfish. Worms can do something similar, if they are cut in half, they regrow into two worms. I was wondering, wha...
[Question] [ I am creating a fictional off-solar system colony. In this colony people started to use a duodecimal positional number system. The people were all cultured in science and practical with numbers. They didn't have any sort of amnesia or contact with alien cultures, their new world is similar enough to Eart...
[Question] [ I want to create an alien life for a planet which is at about 6–8 Earth masses. It has a thick atmosphere made of hydrogen, helium, methane and nitrogen. I want that life to evolve slowly and be quite complex, and being structured enough to become intelligent. It should not follow very strictly the natur...
[Question] [ I thought there had to be a question like this here, but I didn't find one so I figured I would give it a shot. Within my Dungeons and Dragons campaign I invented a tiny village only with about a dozen houses and maybe twenty to thirty inhabitants, all of them of quite to really old age, assumingly betwe...