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Gonna be hard to put it to words, especially because of the rather broad scope of my question, but I think it can be a proper submission here.
Here on Earth, regardless of the period and location, in the majority of occasions, the most fundamental unit of society was somehow related to bloodline. Most ob... |
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In this scenario, there is a particular regime wherein the punishment for any and all violent crime is the same- a single gash to the neck.
Upon pronouncement of guilt by the crown or a recognized officer of the crown, a warden will place a small but extremely sharp dagger against the convict's neck, app... |
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For those that do not know, the tardigrade is a microscopic animal that can survive:
* extreme heat
* extreme cold
* extreme levels of radiation
* lack of water indefinitely
* lack of food indefinitely
* and even the vacuum of space
Tardigrades can be found on every continent including Antarctica (rare ... |
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It is a known concept that if ships were to be constructed in space, it would save a lot of fuel and allow for larger ships. My question is, what would be the best location for an orbital "dockyard" for lack of a better word. I am looking for an answer such as x distance from earth's surface orbiting ove... |
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**This question already has answers here**:
[What are the disadvantages of a long living race?](/questions/53189/what-are-the-disadvantages-of-a-long-living-race)
(19 answers)
Closed 6 years ago.
Say you have a race of human demigods that rule humanity. These demigods have a lifespan of about 5000... |
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Each technology, that is evolving, begins with simple piece of programming code that starts with variables of certain data types. It is interesting to note that many calculative and computing technologies including system clocks have "float" (and similar other) data types which can store floating point n... |
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After France lost the 7 Years war, they were forced to give away land. No matter how little land they are forced to give, it is most likely that they will give away French Louisiana as all other land is more profitable. Because of the fact that this will not work for my alternate series of events I want ... |
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## PRELUDE
I was thinking over the lines from the Declaration of Independence:
"We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness."
So I started t... |
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In this system, rather than purely bartering or using a representative currency, most people would use *blessings*, a collection of coins (bits), banknotes (clips), and virtual currency (surges) that each hold a small sample of magic that can be exchanged for goods and services. The basic guidelines I've... |
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By Merfolk or mere-people I mean sapient beings who share have some physical traits with terrestrial humans (a humanoid upper body and opposable thumbs at least, if that's not specific enough), live in underwater communities, use tools to some degree (one can likely rule out fire), and have a culture, if... |
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The famous quip has it thus:
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> [](https://i.stack.imgur.com/hgoC8.png)
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> Democracy is the worst form of government, except for all the others.
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> ― Winston S. Churchill
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However, democracy has numerous problems a... |
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Imagine a place where the environment is too extreme for human habitation without a lot of modern, specialist equipment. Let's say it's like one of the poles: massively below zero, awful weather, dark for much of the year, little in the way of natural resources. Somewhere it's only been possible for huma... |
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I want to add pirates in a medieval world where gunpowder doesn't exist. Pirates are traditionally known for canons and firearms, so how can they attack and capture commercial ships with non-gunpowder medieval technology.
* Medieval world
* No gunpowder
* Cogs, Caravels and Carracks
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Look a fe... |
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I'm toying with an RPG concept, which includes a younger unarmed martial artist (14/15). As keeping with martial arts tropes he fights unarmed and may fight against monsters as well as humans, but all humans have potential to train beyond regular human strength and abilities in this world.
Acknowledging ... |
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Okay, so our society has starting harnessing significant amounts of energy from its sun, and has started mass producing micro-black holes (although there have been experiments with gathering energy from the micro-black holes directly, because of engineering challenges, solar energy is cheaper. Many natio... |
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*Introduction:* I've spent some fair amount of time thinking about inventing an element to make part of my world easier for me. In this case, it is an LTA gas which I gave the WIP name **LAL-gas** (**L**eichter **A**ls **L**uft - the german equiv. to Lighter Than Air). The gas is intended to be used to l... |
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**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.
I ha... |
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**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.
On t... |
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**Closed**. This question needs to be more [focused](/help/closed-questions). It is not currently accepting answers.
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**Want to improve this question?** Update the question so it focuses on one problem only by [editing this post](/posts/249894/edit).
Closed 4 months ago.
[Improve this question](/p... |
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The planet in question has a radius of 7947km, volume 1.9408 times as large as earth, & a weight about 1.55377 times that of earth.
I want the planet to be earth like, or at least earth like enough that aside from being bigger most of the aspects of it's surface & mineral deposits can be similar. Aside f... |
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I'm working on a civilization who was born out of a century-long interstellar war with an AI. So they had previously developed electrical and digital technology but now they're avoiding using *any* of that tech as it can be too easily hacked or manipulated with digital tools by this AI. (This civilizatio... |
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I'm considering a world where there's an element that has an element that's naturally a plasma. I'm wondering what the broad behavior of such an element would be. Would it be inherently unstable, dissipating quickly?
How difficult would it be to change to another state - say someone is using this plasma ... |
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In short: my last [post](https://worldbuilding.stackexchange.com/q/216381/90300) was about a world of flying islands. The world is like a huge gaseous sphere (with the same gases as the Earth's atmosphere, but without the effects of pollution) with several flying islands in it, there is only gravity on t... |
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In my book series, while most of the Aurean Empire has essentially a combination of the plant life of the American West and the Mediterranean, the northern provinces are a bit different because all of the Planet Aurea's landmass is in the southern hemisphere. These northern provinces are based on parts o... |
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Could a terrestrial planet (1x diameter and mass up to 1.5x diameter and mass) hold a Titan-like (dense atmosphere, relatively large size, weather) realistically in its orbit? If not, how large would the planet have to be to sustain such a moon?
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Could it have a Titan *size* moon? Well, maybe.... |
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Pirates are always a threat, but this particular coastal city has another worry - wyverns. In order to get from said city to open seas, the ships must traverse about 600km towards the exit from the Bay, and as it happens the wyverns nest on southern shore, which means that its common for these creatures ... |
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This is just an idea I have been toying with.
Taking Earth as an example with 7 days in a week, my idea would that there would be 7 moons in orbit around the planet. They would not necessarily share the same orbit, but they would orbit in such a way that only one is visible each night. That way each nigh... |
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Properly ventilating a deep mine is a significant engineering challenge. Ergo, you don't want to be carrying around torches that use up some of your precious breathing oxygen if you don't absolutely have to.
So, suppose we have a civilization of dwarves that have all learned to use echolocation (like man... |
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I am currently writing a book about people with powers. One of these characters have a power to make portals, and I am wondering what would make it realistic
for said character to survive hitting the floor with a lot of momentum. (You can bend reality a little, it is a book!)
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There's a YouTu... |
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I, Rex Machismo, have determined that modern society has robbed this generation of its male identity. Gone are the days of conquerors, where we met each other on the field of battle with sword and shield for territory, only to be replaced by. millenials. A lazy and whiny generation, with their fancy pant... |
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## Setting Overview
My world suffers from an abundance of a particular type of energy. This energy can be safely absorbed and utilized by living cells, enabling, for example, a dragon's flight and fiery breath or a human's ability to manipulate his environment through "magic."
However, this energy also a... |
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**Location:**
The Planet of Tarachs. Compared to Earth, it has lower gravity, higher oxygen percentage in the air and overall warmer climate. This resulted in higher forests, more flying species and given the spiders a chance to keep evolving further down the evolutionary tree.
## **Tarachs**
Giant, sent... |
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I've written about these rocky hills with short grass, gravel, shrubs, and big boulders. At the bottom of one of the hills is a big bog. Basically I've designed some buildings to be sticking out of the hill and half-suspended over the bog with stilts, which spreads into a bigger marketplace all on top of... |
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I once participated in a contest. People grouped in pairs. The two members of each pair sit back-to-back. They can neither see each other nor what the other is doing. I was the one who opens an envelope, and takes-out a lego-built structure. My peer has the same parts, but the structure was disassembled.... |
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I have a cave that is ravine like and stretches approximately one kilometer down into the Earth. Let's assume that the cave has a clear, crystalline roof allowing some light in.
Is there any sort of crystal, mineral, substance, or something else naturally occurring that could reflect light into most par... |
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There are many questions on WBSE that cover most aspects of building a planetary system. (some examples below):
[Creating a realistic world(s) map - planetary systems](https://worldbuilding.stackexchange.com/questions/21408/creating-a-realistic-worlds-map-planetary-systems?r=SearchResults&s=1|63.5068)
[H... |
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The civilization in question here has colonized the solar system. They have established settlements on most solid planets. Of course, a space-faring people generates plenty of trash, but they have a few ideas.
Is it possible for this trash to be sent into space, and formed into an artificial moon? Could ... |
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Doanaldin Trumpet, the first female president of the Corporate States of America, has passed a revolutionary bill called the D.E.D (despicable exploitation of the dead) act. This allows employers advantages in society never before seen in our nations history. All future employees wanting to gain employme... |
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**Closed**. This question is [opinion-based](/help/closed-questions). It is not currently accepting answers.
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**Want to improve this question?** Update the question so it can be answered with facts and citations by [editing this post](/posts/129424/edit).
Closed 5 years ago.
[Improve this question... |
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Underwater, merfolk see no need for clothing. It just slows them down, and the material that they need for it is expensive and hard to get. On the surface, however, the humanoids find their nudity distasteful and offensive. To avoid conflict, the merfolk have agreed to cover up when they're in surface ci... |
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If a medieval-level society with access to things like magic (which itself follows the laws of thermodynamics) were to have some understanding of the laws of thermodynamics, how would the 2n law be stated?
I ask this because, in a medieval world the physical sciences are not advanced enough to have math... |
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I'm writing a sci-fi story in which a group of people are stuck in an endless desert. While I've mostly figured out the philosophical aspects of the story, there are still the practical ones. It's a desert. No water, scarce food, hot during the day, maybe cold during the night. The people have arrived th... |
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After the apocalypse, In Baja California, off the coast of Tijuana, there is the wreckage of the oil tanker, Exxon-Cazador, which was run aground and abandoned by its crew while the first bombs started hitting their targets. It’s cargo, oil, was already delivered, so no oil spill. The local tribal commun... |
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What feature could more feasible evolve in a humanoid race, related to humans or not, that could be mistaken at first glance and/or conflated into by word of mouth exaggerating things, wings?
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**Hair?**
[](https://i.stack.imgur.com/wbKCk.jp... |
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**This question already has answers here**:
[What is the amputationility of a monomolecular wire weapon?](/questions/19249/what-is-the-amputationility-of-a-monomolecular-wire-weapon)
(5 answers)
Closed 5 years ago.
Can you survive being sliced by an object if it is thin enough?
**The following pro... |
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**Background info**
During [physical examination](https://en.wikipedia.org/wiki/Physical_examination)
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> A physical examination may include checking vital signs, including temperature examination, Blood pressure, pulse, and respiratory rate. The healthcare provider uses the senses of sight, hearing, to... |
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EDIT: After reading a lot of great suggestions I've decided that these dragons will be a mix between warm-blooded and cold-blooded animals. They stalk their prey and ambush them along well traveled paths or funnels. They do not chase and prefer to conserve energy. Thanks again.
I am working on a short st... |
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Disclaimer: This is not a duplicate of [this question](https://worldbuilding.stackexchange.com/questions/78778/how-would-a-giant-marine-snake-like-creature-survive). This question deals with a specifically non-marine snake.
My fantasy story requires a giant snake. The easiest way to create one (as far a... |
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It's a popular Sci-fi theme to terraform Mars (or sometimes Venus), but both need a lot more than just a breathable atmosphere to be habitable, almost to the point of impracticality. Mars receives too little light, Venus too much, neither has a whole lot of water and neither has much of a magnetosphere (... |
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[](https://i.stack.imgur.com/AuIC9.png)
[No, not like that!!!](https://dismantledpossessions.wordpress.com/2012/02/09/bedazzled-5/)
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The Oxford Dictionary defines:
* Ghost as "an apparition of a dead person which is believed to appea... |
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I am currently working with a landmass roughly 1,000 miles (1600 km) in length and width. Would insular dwarfism or gigantism occur in this landmass? If not what is the largest a landmass can be before this does not occur.
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There is a biometric scaling formula that deals with the size of anim... |
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I am working on a story where ships are tricked and crash land on a volcanic planet due to some sort of electromagnetic interference. The survivors of the landing essentially become gladiators on a planet fighting for survival.
I doubt it is possible but I am curious as to whether it is possible for hum... |
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What I want is to know if I could have seven Earth like (What I mean by this is having an Earth-like atmosphere and climate, in this scenario size doesn't matter and nor does gravity) planets in the same system (This is not in our solar system but a different one containing what I will specify and other ... |
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Imagine world as you see. Electric lights. Fridge full of food humming silently, running water. You are reading an e-book in warm, but electric light. You hear a noise. Car crash. At the same moment your ebook goes dead, but you hardly notice it in darkness. Fridge goes silent. It's the end of the world ... |
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Could an almost entirely capitalist country work?
I say "almost" because people are still forced to pay a form of tax, but they don't call it tax - what would normally be government funded services (police, public infrastructure, city beautification, etc) are actually private companies and can get a spe... |
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**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.
I kn... |
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Could something similar to a naval battleship main gun work in the vacuum of space?
Let me set the stage: A turret of 2-3 large caliber guns, loaded with an explosive shell. Artificial gravity keeps the round and the powder bags seated properly, and the loading chamber is isolated from the inner atmosph... |
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I want demons to appear in my story, but having them originate from Hell was never appealing. Anyways, these "demons" are summoned to Earth- a planet that's only just discovering magic.
They are- in essence- still demons. Things like holy trinkets and devil's traps still work on them. But *what about* He... |
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*Setting*: In my world I've introduced [some science-defying material](https://worldbuilding.stackexchange.com/questions/19630/is-this-concept-for-an-lta-gas-associated-element-lifecycle-feasible). I use it to grant the ability of flight to airships that are less [Hindenburg-y](https://en.wikipedia.org/w... |
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In the *Halo* series there's a habitable planet called Harvest with a diameter of 4,012 kilometres, and gravity 99% of Earth's, though the planet only has 9% of Earth's mass. If such a planet is possible, what are some factors that might lead to its formation?
Some more information on the planet can be ... |
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**Closed**. This question is [opinion-based](/help/closed-questions). It is not currently accepting answers.
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**Want to improve this question?** Update the question so it can be answered with facts and citations by [editing this post](/posts/37349/edit).
Closed 7 years ago.
[Improve this question]... |
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**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.
**Cl... |
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I was thinking of a situation in which a life form evolves a biological screen somewhere on its body that can play videos. The life form would play videos on its biological video screen in order to share ideas and memories with other members of its species. The videos that the life form could play could ... |
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Inspired by:
[In what war would one modern military vehicle make a difference?](https://worldbuilding.stackexchange.com/questions/12219/in-what-war-would-one-modern-military-vehicle-make-a-difference?rq=1)
A lone [Nimitz-class carrier](https://en.wikipedia.org/wiki/Nimitz-class_aircraft_carrier) (with a ... |
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**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.
I ha... |
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**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.
**Cl... |
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I am looking for a (at least somewhat) plausible organic matter, which is able to store massive amounts of energy. After reading up on [biobatteries](https://en.wikipedia.org/wiki/Biobattery) and so on, I am aware that I would need something very similar, but much more powerful.
Criteria:
* Does not nee... |
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I'm trying to figure out if a certain city, with these characteristics, is possible, geographically:
* Assume the city's the size of Renaissance London...
* With Renaissance London technology
* Doesn't precipitate (rain or snow) in the daytime, for about one and a half months.
* Has farms outside the cit... |
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**Closed.** This question is [off-topic](/help/closed-questions). It is not currently accepting answers.
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Questions about Idea Generation are off-topic because they tend to result in list answers with no objective means to compare the quality of one answer with the others. For more information, s... |
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Imagine there is a space station shaped like a cylinder. The cylinder spins on its axis, in order to create artificial gravity through centripetal force.
My question: **How fast would the space station need to spin to have the gravity be the same as on Earth?**
I realize I probably can't get any exact ... |
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I'm imagining a world where time travel is a part of day to day life. Technically speaking, a sealed chamber (imagine it being about phone booth sized) would be linked to it's past and future instances of itself. This gets around issues like "the Earth is moving through space so if you travel to the EXAC... |
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In my current setting, one of the main dominant species' is the Golem, former automatons made of assorted materials who gained sentience through some kind of life-giving explosion. As such, though they operate like any other sentient species, they can feel no pain and cannot die from any cause (i.e. dise... |
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Now, in my world, Gauss weapons are in common use for use in armor piercing where LP (low-powered) lasers and plasma fail. Using solid steel needles, slugs, or bolts, depending on the size, shape, power, and caliber of the firearm, these weapons are highly effective for launching ammunition at high enoug... |
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I have been brainstorming for my sci-fi world building project and liked the idea of having a planet where there persisted a heavy poisonous gas over the majority of the land that would force almost all animals and plants to live on higher altitudes.
However I don't know nearly enough chemistry to immedi... |
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Bit of a niche question here, but I’ve been mulling this over in my head for a while now. I’ve only ever seen or heard of people using lump charcoal to smelt iron in a bloomery furnace. What if, for example, you have a culture in a desert or plains environment where wood is too valuable to burn in large ... |
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When creating the plant life on alien planets, photosynthetic pigments other than chlorophyll can be the predominant molecule to create foliage of colours other than green, as we see on earth but for the minority of plants. But most trees and woody plants have brown bark, other than the few examples like... |
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**Setting**
In the 2020s an AI took over all of the world and killed most of the population. Only a few groups of people have survived and now they live hiding in woods and rural places
**About the AI**
* This AI has been coded to understand the past and learn from its mistakes;
* The AI has full access ... |
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Contestant 1: healthy adult male human weights 80kg with less than 5% body fat. Punching method based on principle of a lever.
Contestant 2: healthy adult serpentine species (limbless) with similar muscle mass as contestant 1. Works just like elephant trunk.
If we consider contestant 2's prehensile tail ... |
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I'm working on a short story. In in this story there are elves. I'm hoping to realistically write how they would fight both one another and other races.
NOTE: The elves didn't naturally evolve, they were created involuntarily.
### Physical Characteristics
* Elves stand roughly 4 feet tall, give or take a... |
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I have a character whose eye whites are bright red, and I'd like to make some attempt to justify why.
This character's species has eyes that generally become bloodshot in the same way and under the same conditions as humans', but they are alien, so feel free to take liberties with the biology. The actual... |
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**Closed.** This question is [off-topic](/help/closed-questions). It is not currently accepting answers.
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You are asking questions about a story set in a world instead of about building a world. For more information, see [Why is my question "Too Story Based" and how do I get it opened?](https://w... |
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I'm trying to make my idea make sense. I wanted to create an parasitic/symbiotic alien species which reproduces/breeds by air or touch, which they are unaware of. They do not understand why their species keep being "born" in other species. They are intelligent and sentient but not highly advanced themsel... |
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In my scenario a quite hierarchical society has two particular groups of students:
* An extremely intelligent well educated elite who are meant to lead the country some day
* A not less intelligent group of lower class people or people considered a threat to the society.
The second group is used as a kin... |
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The human world has the world government (and thus the single Big Brother system, which monitors people living even in the most obscure places).
For sake of being short I will call "supernatural social beings" just "demons" (people who are basically humans with ability to do magic are considered to be de... |
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So in this fantasy universe the dominant maritime powers developed & embraced multi-hulled ships akin to Polynesian catamarans very early in their history. They've made the same developments in weaponry, navigation, ship building, etc. that Europe had by 1800, but with multi-hulled designs rather than si... |
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In a parallel universe, humans have a 95% confidence that Planet 9 exists with the parameters given on [Wikipedia](https://en.wikipedia.org/wiki/Planet_Nine). However, they have not directly observed it and plan on launching many space probes to different regions of the Solar System. Each probe costs $\s... |
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In my world, a newly independent Mars established incentives to draw in scientists, engineers, and academics. Brilliant people flocked in from around the solar system, to fill high-paying but very selective jobs and gain instant citizenship as soon as they can land one. Rapidly increasing competition dro... |
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In my setting, an apocalyptic supernatural event made the earth into a gridded globe of "squares" (more like columns) that are roughly 2x2 miles at sea level, getting larger going up and smaller going down (so there are no "gaps" between squares at higher altitudes). Each of these squares is subject to a... |
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So, nuclear war has wiped out civilization, and brought humanity to its knees. Nuclear winter, radiation and violence has turned the Earth into a wasteland; a slaughterhouse and a breeding ground for monsters. The few human beings who survive must contend with violent raiders, mutated creatures, and muta... |
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This is my first time ever posting. Please let me know If I've done anything wrong and I'll do my best to correct it.
This is my first time attempting to create a functional world in D&D5e and I'm a bit stuck on what to include and what to exclude. I'm currently trying to decide what type of goods are so... |
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I've been toying with this idea for a while now, it's by no means fleshed out yet but here we go:
So there's this featureless white plane. It stretches on infinitely in every dimension and is made of an unbreakable, impenetrable material. Situated above this is an equally large ceiling with a massive, ga... |
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According to the plot of my story, terraforming earth-like planets turned out to be an incredibly difficult task and exact copies of the Earth with an atmosphere of oxygen are rare, so it was decided to genetically adjust the children of the colonists to local conditions, namely for breathing chlorine or... |
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So the idea of worlds like this has been brought up a few times, about how human technology would have developed without fossil fuels, but the question I have is whether it is plausible for a world like this to develop. Could humans(or human like aliens) evolve early enough that there is not actually a r... |
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Whether or not “free will” exists, and whether or not the future has multiple “possible” outcomes, is a very deep philosophical question with a long history. One of the reasons this debate is so rich is because it *feels* to us (humans) that we can “choose” between different possible courses of action, a... |
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In one question I asked how insects can evolve their base biology to grow in size [here](https://worldbuilding.stackexchange.com/questions/159280/can-insects-evolve-their-basic-anatomy-to-grow-in-size).
Which was followed up by this question about how well the antennae would fare when increased in size ... |
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When designing a flying car intended for congested city routes with slow traffic, should turn signals indicate all possible directions. In most sci-fi, I've seen designs that have no turn-signals or the same left/right signals that a normal car has. Imagine the scenario of a car flying along in a lane at... |
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My question is more science-based than hard sci-fi. Basically, I'm envisioning a scenario in which technology is advanced enough that life has spread through the solar system, and this mostly via self-replicating artificial intelligence.
There are all sorts of practical reasons why humans would avoid try... |
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In Star Trek Voyager, the Voth are an intelligent, humanoid species of descendants of dinosaurs (hadrosaurs).
Paleontologists estimate, that up around [99% of species, that ever lived, died out.](https://books.google.de/books?id=4LHnCAAAQBAJ&pg=PA110&lpg=PA110&dq=&redir_esc=y#v=onepage&q&f=false)
However... |
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So, I'm writing a fictional story about gangs and the city I'm using as the setting is loosely based on New York. More specifically, the size of New York City, and the population. I checked on Google and apparently it goes something like this:
\*Land area: 783.8 km² \*Population: 8.623 million
There are ... |
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I'm writing a story, in which it's in a character's best interest to fake a brain-damaged state -- just for a week or two. I know MRI's are available to access brain activity, but would my character be able to pull off the vegetative act, given modern tech?
Edit: The character is in a situation where br... |
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