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[Question] [ Is it feasible to modify a combustion engine to source fuel from air and oxidizer from a tank, in an atmosphere that has significant amount of flammable fluids, such as one found in Titan? If so, can you also tell the necessary modifications in your answer? Is there any weak or strong points in such an e...
[Question] [ Closed. This question needs to be more [focused](/help/closed-questions). It is not currently accepting answers. --- Want to improve this question? Update the question so it focuses on one problem only by [editing this post](/posts/179091/edit). Closed 3 years ago. [Improve this question](/po...
[Question] [ As the title: I want to know what kind of organs or modifications need for plants like tree to gain energy from lightning or electricity (and still fine or safe or alive of course). Since I have a region that constantly has thunderstorm in it, and just recently seeing a tree get struck by lightning make ...
[Question] [ A group of English-speaking settlers travel to the Earth-like exoplanet of Rataan, which is 5 light years away. They board the generation ship Genesis that will reach Rataan in 200 years (0.25% of the speed of light). However, transmissions between Genesis and Earth are limited to text-only communica...
[Question] [ I have this idea of a character capable of manipulating heat (more than just controlling fire, really controlling the heat of stuff around him). Let's now say that this character digs a tunnel. Would it be possible to harden the sides of the tunnel (and even create kind of pillars) simply by heating the ...
[Question] [ While I'm working on the Magical Artillery, let's look at another common spell. --- *Mage Light* is a very handy invention. When cast, the spell creates an orb, 13 cm in diameter. The orb radiates white light, usually between 30-50 candelas in luminous intensity, though it can be decreased or incre...
[Question] [ I'm talking about place similar to the Jordan desert, where the biggest prey is similar to wild donkeys and antelopes like oryx and gazelles. My creature is 1.92 meters tall and 4 meters long, looks like a monitor lizard but its limbs are located under its body and has a tail that doesn't touch the floor...
[Question] [ So, it's the future and society has long since became divided upon distinct lines of rich and poor. The rich upper-class living a life of luxury and the poor lower-classes living each day at a time, thousands of meters above the Earth in the sky, in massive balloons and the tops of skyscrapers, the groun...
[Question] [ In many fantasy stories humans are capable of inter-breeding with different fantasy races. There is a precedent for this happening with neanderthal and Denisovan DNA being found in people of Eurasian descent so we do know that humans inter-breed with other hominids. In my story I have many fantasy races ...
[Question] [ # Background I am trying to find a design for a cylindrical habitat that would allow the enclosed cylinder to radiate heat out to space as does the Earth without using mirrors and windows. # Problem In my design, I am not using the [mirrors and windows](https://en.wikipedia.org/wiki/O%27Neill_cylinder#...
[Question] [ The Doppish are a race of imp-like magical creatures. Their ancestors evolved venom glands in the liver, which over time further evolved into glands for mana, or magical energy. They produce magical energy in these glands inside the liver, and it's stored throughout the body, with high concentrations in...
[Question] [ Given that the main ingredients for gunpowder(Charcoal, Saltpetre, and Sulphur) exist in varying quantities pretty much everywhere, I've been wondering how it wasn't discovered much sooner than the 9th century. I know there are some reasons for that but for the sake of the scenario let's assume that this...
[Question] [ Inspired by this [question](https://worldbuilding.stackexchange.com/questions/162055/how-much-would-we-learn-from-observing-an-ftl-starship-fly-by) about learning from FTL, I wonder **Is it even possible for anything to happen, that, if observed by us using methods available to us, will unmistakably and ...
[Question] [ In Game of Thrones the Targaryen family had special heritage allowing them to ride their iconic beasts of war. I want to ground this in reality. Is there a way for heritable trait to allow you to be more attractive by another specific organism? I thought about the person having a gene that expresses chem...
[Question] [ I was wondering if a vacuum created within a particular material in the shape of sphere could be used to harvest anti-matter from virtual particles? Within the vacuum, theoretically, virtual particles would form; is there a material that could be used to draw the electron towards it while it repels the a...
[Question] [ For this question, the word 'metals' does not refer to elements [heavier than hydrogen and helium](https://en.wikipedia.org/wiki/Metallicity). It instead refers to metals [as defined by the periodic table of elements](https://en.wikipedia.org/wiki/Metal). After researching the [abundance of chemical elem...
[Question] [ I have a species of early primates (lemur-like but not lemurs) developing into an intelligent species like humans (and yes, there is some influence from an intelligent species, it's not 100% natural if you're thinking it's unlikely). Now, since lemur catta (ring-tailed lemurs) are matriarchal I wanted ...
[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. Assu...
[Question] [ Ever since I watched Star Wars I have always been fascinated with the Bacta Tank: that tank with the funky blue liquid Luke Skywalker was submerged in. ![Luke Skywalker in a Bacta Tank](https://i.stack.imgur.com/3k1OJ.jpg) But now I'm wondering could it become reality? The basic premise of a Bacta Tank...
[Question] [ Background: An Elven nation that once thrived for thousands of years as a predominantly agricultural race was forced underground because of unexplainable occurrences of extreme weather conditions (tsunamis, volcanic eruptions, hurricanes, blizzards) threatening their existence. The majority of weathe...
[Question] [ I want a way to enclose an area (building-sized and on Earth, let's say) in a field that warps spacetime so that time appears to pass 100x slower within it. You don't need to explain how the field got there or what effect could produce it, only lay out a consistent framework that it operates under. (...
[Question] [ In my world, the government has prohibited owning your own military-like force. So what is a filthy rich person supposed to do to get back at the one who has given them a deadly insult? Hire mercenaries! There is a well-established and respected mercenary guild, with few (if any) mercenaries operating ou...
[Question] [ We all know Pikachu, fuzzy, small rodent, with the ability to discharge electrical energy as an attack. But could Pikachu ever evolve in our world, and how would it do so? What's required: * Rodent-like bodyshape, and * The ability to generate enough electricity that the Pikachu can discharge it to deal...
[Question] [ A portal to another Earth in a parallel universe is open at the bottom of the Ocean and all the water is moving to the new Earth in the form of a waterfall in the middle of the Atlantic. The form of new Earth is exactly like ours. * Is there still land available? If yes, how much? I'm focusing on this ne...
[Question] [ ![Parsas Decem land map](https://i.stack.imgur.com/wRHHo.jpg) So this is a small map of all the continents on the small planet of Parsas Decem. As far as most of the rivers go, I’ve got it figured out. What I’m wondering is, can salt water flowing in from the sea be filtered naturally by the soil, perhap...
[Question] [ Let's say that a method of lie detection was created that was 99.99% accurate, portable, and cheap. It is also very generally applicable, and there is no known method to fool it. Now, it is ubiquitous in society. Employers regularly use lie detectors to confirm that employees have not stolen or otherwise...
[Question] [ The scenario In the scenario that I'm imagining, a small group of people (ideally 100 or less) travel to a parallel universe and begin a new society. The new planet that they land on has one land mass surrounded by water, with sufficient freshwater resources and enough fertile land to build a prosper...
[Question] [ A few days ago, I saw this very nice reconstruction of a Machairodus giganteus by Peter Hutzler: [![enter image description here](https://i.stack.imgur.com/z9L9d.jpg)](https://i.stack.imgur.com/z9L9d.jpg) More recently, I've been thinking about it, and I'm wondering A) if it would evolve without gettin...
[Question] [ I'm creating various artificial [Time Bubbles](https://worldbuilding.stackexchange.com/questions/57925/stopping-time-by-speeding-it-up-inside-a-bubble) in my universe where time flows faster or slower inside a specified area, typically depicted as a semi-transparent bubble. Before developing any more sto...
[Question] [ I have made this planet for my creatures and it is constantly dark, night or day. No it's not a rogue planet, it's dark because of the 1,000 feet tall autotrophs that suck up all the sunlight and let little pass through (think nighttime with a half full moon). There are also hot vents sticking up out o...
[Question] [ I've been working on a project and I'm trying to make it as scientifically plausible as I can get it to be. Since space is large, and it's physically impossible in this universe to reach the speed of light, people aboard spaceships would likely die before they get to the destination, or at least age. I'v...
[Question] [ Let's say an isolated colony is established in an ideal environment with the goal of growing the inhabited human population as quickly as possible. Health care is provided for them by managers, or those that own the colony, and is roughly up to twenty-first century standards with improvement on gene tech...
[Question] [ ## BACKGROUND *In the antiquity of my world, a college of [pyromancers](https://worldbuilding.stackexchange.com/questions/101376/how-should-i-calibrate-and-estimate-pyrokinesis) attempted to create stronger magnifying lenses so that they could apply their ability to control heat to ever more finely d...
[Question] [ I'm hoping to develop a hybrid genre setting for a game, a 'post-singularity' situation developed from a traditional fantasy/magipunk world - though the allegory doesn't fully encompass what I want, think "eclipse phase or John C. Wrights 'golden age' via eberron". The key themes I'm hoping to explore a...
[Question] [ I'm looking for a description of how an EMP might affect a magnetic levitation train system that is NOT connected to the local power grid. Specifically, if the maglev was active, would the train be thrown off the tracks and rendered unusable, or otherwise disabled, or would it simply suffer a loss of pow...
[Question] [ I was thinking of making flying islands part of a planet ring, but the problem was that they wouldn't be able to host life unless they were inside the atmosphere of the planet, but at that point it would seem unlikely that they could just float in the sky, so I'm here asking what I should do with the pla...
[Question] [ I am currently trying to design a kamikaze goblin. This goblin would drink explosives and have some sort of storage area within their abdominal regions. How would this goblin be able to have these explosives not go to their digestive tract, and how would they not detonate the explosives while running tow...
[Question] [ [Working off of a previous question about armor](https://worldbuilding.stackexchange.com/questions/81587/super-metal-and-the-construction-of-knight-armor), imagine yet again a world where there exists a metal > > comparable to high grade steel, however instead of steel's density of ~8 g/cm³, this mater...
[Question] [ In 1890’s H.G. Wells famously takes a “science fiction” approach to time travel by building a machine that can move freely through time as a dimension. It was made of clockwork — mechanical gears and such. Gears can perform ordinary motion in precise ways, but nothing about that enables doing something t...
[Question] [ Closed. This question needs [details or clarity](/help/closed-questions). It is not currently accepting answers. --- Want to improve this question? Add details and clarify the problem by [editing this post](/posts/77555/edit). Closed 6 years ago. [Improve this question](/posts/77555/edit) I ...
[Question] [ I am imaging a world in which a minor plot device is that there is a strain of dogs that were genetically engineered so that they are even more loyal than ordinary dogs at first, but at some point in their lives, either due to a triggering event or just the passage of time, suddenly flip. Then they becom...
[Question] [ This hypothetical marsupial species raises young in a manner loosely similar to seahorses. Only the males have pouches: after gestation the female deposits the fetus into his pouch to compete development. Is this adaptation competitive? EDIT: Here are some revisions to address problems brought up by answ...
[Question] [ Immediate to near future, we are talking about single digit nanometer size transistor and light emitting diode. That's actually very small, you can't see it with a conventional microscope let alone magnifying glass. I need a pair of contact lenses that could allow me to browse the internet for at least 2...
[Question] [ What if in an alternate universe after the Chernobyl incident, the world governments decide to shut down their nuclear power plants and if so how would that affect society? [Answer] Chernobyl was an [RBMK](https://en.wikipedia.org/wiki/RBMK) type reactor. The RBMK is pretty unique in terms of reactor ...
[Question] [ Dragons are kind of a cult. They are very popular in movies, books and stories in general. It feels that the dragons are only a better dinosaur. So I wonder, would finding their skeletons affect people's judgement about dinosaurs being so special? --- Dragons... * extinct. * can fly. * can breathe fire....
[Question] [ From June 2011 all the way to August, the American Midwest underwent a headline disaster--the overflow of Gavins Point Dam just outside Yankton, South Dakota, resulting in a region-wide flood. The cause of it was a combination of high snowfall and cooler-than-average spring temperatures. 152,000 cubic fe...
[Question] [ This question already has answers here: [Can airborne floating/flying islands be scientifically possible?](/questions/33513/can-airborne-floating-flying-islands-be-scientifically-possible) (16 answers) Closed 7 years ago. Your basic, average floating sky island. How would a floating island 1. ...
[Question] [ I'm trying to design human like race where all the children are born as girls, but later in life some of them switch to male, but no sooner then 15. Usually only the most dominant women switch, so in normal times women are majority of the population, but in exceptional situations like war or overpopu...
[Question] [ This is a religion i am creating for a possible book in progress. It takes place in a world created by gods. This is a world of humans, dwarves, elves, and magic. I would like to create a religion which all three races follow, but which is based on a lie. My three gods are as follows: Appolyon * "The...
[Question] [ In a world I am building, birds have become the dominant order instead of mammals. Among all of the birds, the New Caledonian Crow has become the dominant sapient species. In a [previous question](https://worldbuilding.stackexchange.com/questions/53098/planet-of-the-aves-low-tech-weaponry), I asked about...
[Question] [ In this context, my world assumes an infinite universe so parallel Earths are possible and probability isn't an issue. My planet has half the gravity of Earth but an atmosphere 12x denser, although, answers do not have to be restricted to this planet specifically and can be general in nature. I've read t...
[Question] [ Inspired by this [answer](https://worldbuilding.stackexchange.com/a/51459/4995), If that Lunar-plant is used as a weapon (pointed toward specific cities/forest/seas/lakes), how much damage it could really do? Is that able to burn cities, or anything? I assume for fun Full Moon. To recap here's how the we...
[Question] [ The [tomte](https://en.wikipedia.org/wiki/Tomte) is a creature from scandinavian mythology. It's pretty small, humanoid and has clothes and a beard. They live on farms and in houses where they help out with farmwork and other labour, though they stay out of sight. They don't require much except being res...
[Question] [ How would a species be able to communicate using colors, flashing, and images on their skin (like some deeper water fish) with someone who speaks verbally, like a human? Is a translation devise even plausible in this case? Especially with a water based species (technology and water issues) I should speci...
[Question] [ Let's say I have been chosen to evaluate whether or not alien worlds contain sapient life before we terraform them. Just assume that we learned to work together and live as a species in peace, treating intelligent life equally (though in reality we never will). Obviously this is a hard job and since I d...
[Question] [ This was discussed in another question related to reaching earth's core using nukes. I re-ask it here to (1) stop unintentionally hijacking other topics, and (2) be able to respond (as someone cut my newbie score from 50 to 49). My position, to be clear, is that it might be possible (depending on the ...
[Question] [ Life on Earth has developed with one Earth-gravity, more or less, as a constant for epochs. Our bones and organs both are adapted to this amount of pull, (or push, depending on how sciency you want to put it, right?) but could a larger planet have a similar pull (at the surface) based on various factors ...
[Question] [ In an unfortunate miscommunication between a director and the special-effects company, a request for a prop version of The Matrix got mistaken for a request for the real thing. The director's going to freak when he sees the final bill, but we'll deal with that later. The real issues is that the director ...
[Question] [ I'm designing a city at the moment and I want residential construction to follow an iterative design. Houses are made of connecting hexagonal rooms. Families grow very large in my city due to some unrelated social things and construction is often done by residents. So the rules need to be simple enough t...
[Question] [ A group of biosphere conservation activists from a type three civilization come across the earth. Using their technology and observations, they see that throughout human history , humans have blatantly disregarded the well being of their fellow multi-cellular life forms , and due to this , they are leadi...
[Question] [ Today we take salt for granted and we even dare to spread it on streets but salt was a critical element for human life up until not so long ago. Salt production was probably in many ways the world’s first industry; powerful cities and sometimes entire empires rose and fell with salt production, its c...
[Question] [ Giants do exist. It's just that they can't be anywhere close to being as big as those in Norse mythology or the story of Jack and the Beanstalk. The best we'd ever have for a giant was Robert Wadlow, who grew to a height of eight feet and 11.1 inches. [![enter image description here](https://i.stack.imgu...
[Question] [ I am creating a world that consists only of cities. There is an 'outside' but the people never go there and the cities are connected with long underground tunnels. There is a king, and he would of course need to have some kind of military power. But how would a military look like in this setting? There ...
[Question] [ Ignoring how this sort of atmosphere would come about, what are some things that happen regularly on Earth that would be altered by this sort of atmosphere? Example: Would firearms still ignite normally with that much argon present? Would humans have trouble breathing? How easily would light pass through...
[Question] [ I am working on a world situated on the Earth. There is normal gravity, normal conditions of living - normal everything, except the human population itself. The situation: Humanity as a species evolved to its peak, and now everybody has slight elemental powers based on fire, earth, water and air. Nothin...
[Question] [ I'm working on a setting in which all humans have been genetically modified to have access to telekinesis ages ago, and it is now considered a normal thing. It works somewhat like a muscle in that the more you use it, the better you get at using it. It's upper limit, is that you can only impact an item o...
[Question] [ In a project of mine, I've contemplated an alien species that uses a weapon that shoots liquid nitrogen (or something similar) that makes enemy armour brittle by freezing it. Is there a way they could avoid damaging their own weapon with the freezing liquid? [Answer] While this is not exactly a respon...
[Question] [ I am an evil genius owning a space station in a 400km orbit around Earth. As part of my plan for world domination I would like to equip this space station with a ground-attack laser cannon. Approximately how powerful (in watt) would an orbital laser need to be so that a one-second burst could destroy: * ...
[Question] [ For an intelligent species of life to attain so advanced a level of technological development and operation as to be considered a type-I civilization, in a number of evolutionary scenarios they'd first need at their disposal hundreds of millennia. In the case of humanity, systems of time are often politi...
[Question] [ Take a 'mage' whose magic takes the form of manipulating (non-magical!) energy and matter in an approximately 10m radius around them. Examples of this include high speed air currents around the mage that serve as protection or forcing oxygen away from a person to cause suffocation although they can't aff...
[Question] [ This question already has answers here: [Where in the solar system is the most viable place to put my colonists, after Mars and Luna?](/questions/2507/where-in-the-solar-system-is-the-most-viable-place-to-put-my-colonists-after-ma) (17 answers) Closed 8 years ago. The answers to this question ...
[Question] [ In the far future, cities are spreading across continents, some cities are as large as france (~1000 km across) after smaller cities have grown together - Into Super Cities. Now [Marchettis Constant](http://en.wikipedia.org/wiki/Marchetti%27s_constant) states that a city's limit in size is estimated one ...
[Question] [ What changes to the culture of 1950s Britain/England would be needed for a Female [Archbishop](http://en.wikipedia.org/wiki/Archbishop) of Canterbury, of the Anglican Church of that time period? She also has as much political power and social capital and all that kind of stuff as the OTL Anglican Church....
[Question] [ This question already has answers here: [Are there techniques for creating alien or foreign sounding names?](/questions/3478/are-there-techniques-for-creating-alien-or-foreign-sounding-names) (13 answers) Closed 8 years ago. I've always had trouble with inventing names. They refuse to come, or...
[Question] [ This is the extremely similar to [How do you prove you're from the future?](https://worldbuilding.stackexchange.com/q/12348/2138) with the crucial difference that objects cannot travel with you and you are not actually from the future - you've just been to it. The points below also mean that the inventor...
[Question] [ Ok, so I have started the worldbuilding process by creating several different communities and giving them each their own personalities. I ran into a problem, though, when I created a desert dwelling community that doesn't identify with the rest of them. While all of the others could be considered portion...
[Question] [ Closed. This question needs to be more [focused](/help/closed-questions). It is not currently accepting answers. --- Want to improve this question? Update the question so it focuses on one problem only by [editing this post](/posts/12136/edit). Closed 8 years ago. [Improve this question](/pos...
[Question] [ Near the beginning of my story, my main character loses an arm, and is going to get a prosthetic replacement. I've done some research on prosthetic limbs, and as one might expect, you're not good to go in a week. The problem is, I had intended for everything to be occurring during a serious winter storm,...
[Question] [ We know that humans are capable of incredible feats, as displayed by Olympic athletes. However, the superhuman heroes that appear in comic books and fantasy novels tend to not only be able to perform such feats, but to be able to sustain such action over a period of time. Not only that, but athletes tend...
[Question] [ Is it a good idea? No. A very definitive no. However, that's not stopping a young aristocratic terrestrial cuttlefish (long story) that lives on this world's equivalent of a highly mountainous and densely forested version of Australia on steroids from attempting to make one! That, and to make sure he doe...
[Question] [ This question already has answers here: [Methods of containing/combating "grey goo" Von Neumann nanomachines?](/questions/453/methods-of-containing-combating-grey-goo-von-neumann-nanomachines) (7 answers) Closed 1 year ago. Let us imagine a scenario where the apocalypse has come in the form of...
[Question] [ So I basically have a medieval fantasy world, where there are several empires on an Earthlike planet. These empires originated from early Bronze Age civilizations, and have stood the test of time in one form or another. Now they are all more or less in the "medieval" era, technologically speaking. And ye...
[Question] [ Closed. This question needs to be more [focused](/help/closed-questions). It is not currently accepting answers. --- Want to improve this question? Update the question so it focuses on one problem only by [editing this post](/posts/237181/edit). Closed 1 year ago. The community reviewed wheth...
[Question] [ ## What would an eclipse with a translucent crystal moon look like? In one of my worlds, a special moon orbits the planet — it's made of a translucent crystal, blocking only 80% of the incoming light. It's purple. And on certain days, just like earth, this moon covers the star the planet calls home, and ...
[Question] [ Upright; no tail. This is a creature that requires a more efficient respiratory system for longer intense physical activity. But it needs strong bones like mammals have. Bird air sacs extend into the bones, though, which would probably weaken the bones. It does not fly. By bird system efficiency I'm refe...
[Question] [ Setup: Avians are a humanoid species with bird characteristics, they all posses the ability to fly. Just as other species they can learn to use bows, swords and magic. Their main fighting tactic is using long spears to charge down attack and fly back up, they are aware using bows from high above woul...
[Question] [ I want my world to have an Alcubierre drive for slower-than-light-travel. One third the speed of light will do. Since there is no FTL we don't have to worry about causality paradoxes. However the drive still has problems! [They are about radiation.](https://en.wikipedia.org/wiki/Alcubierre_drive#Survivab...
[Question] [ If life did evolve on a planet around a blue star, what sort of adaptation could be expected? I so far have the autotrophs being yellow/orange or blue to absorb the light. I also thought the animal life would have blue reflective skin. [Answer] Physical adaptations would be less about hue and more a...
[Question] [ By “Police State” I mean a despotic sort of government in which the state is actively trying to spy on its citizens for political ends. Something like the German Democratic Republic (East Germany) or the People’s Republic of China. By “Widespread and Reliable Communications Technology” I’m referring to e...
[Question] [ I‚Äôm building a world nearly equal to earth; i need a catastrophic event that make the moon start spinning breaking the tidal lock, a really slow spin, like 500 years for a full spin. i thought about a strong impact with great angle. It will be possible while retain its orbit mostly unchanged? Every sci...
[Question] [ My setting includes several natural and terraformed earth-like worlds orbiting various main sequence stars, from M class dwarfs to A class giants. Humanity has independently developed from stone age to space age across each of these worlds, and though they share common ancestry and little genetic deviati...
[Question] [ A follow up to the previous [post](https://worldbuilding.stackexchange.com/questions/214636/breathing-on-high-oxygen-world-what-can-be-done-to-stop-humans-from-dying) question, one of the point's raised in the question was that the atmosphere that is presented has around 0.7% of it's atmosphere made up o...
[Question] [ Ideally animals store water in their blood or metabolize their fat reserves. I am aware of these methods but that’s not the approach I’m going for. Instead I though of an animal that secretes a slime sack which serves to store water in large quantities. The animal is closely related to amphibians like fr...
[Question] [ In [Dragon's Egg by Robert L. Forward](https://en.wikipedia.org/wiki/Dragon%27s_Egg), a neutron star gives birth to a unique type of life, based on "compounds" constructed of nuclei bound by the strong force. This life evolves to sapient creatures, called "cheela". Eventually they manage to build civil...
[Question] [ Closed. This question is [opinion-based](/help/closed-questions). It is not currently accepting answers. --- Want to improve this question? Update the question so it can be answered with facts and citations by [editing this post](/posts/206510/edit). Closed 2 years ago. [Improve this question...
[Question] [ The experiment requires 250 million people and a lifetime dedication; once in there's no way out. It consists on enclosing people in 5 artificial countries, each country with fixed rules. Each person can choose their country but once they are in, they can't get back. The goal is to convince at least 50 m...
[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. Assu...
[Question] [ I've begun to consider an Alternate Reality in which the natives of Australia formed a nation that spanned all of Oceania. This Australian Nation would be formed after several centuries of the kingdoms oppressing the people to the point of them overthrowing the kingdoms in which both republics and kingdo...
[Question] [ The zombie outbreak is contained and people survived in fortified cities and on islands and so on. Humans who die in any way that does not destroy the brain will turn into zombies. Rules of that is simple: 5-30 minutes until they start changing. Once they start the change they turn within a few seconds. ...
[Question] [ So I did the numbers using atomic rocket's page on worldbuilding and it appears my super-earth would retain the helium gas in its atmosphere from its early formation. What effects would this have on life and the planet itself? I don't know how much helium it would have either I am not sure what percentag...

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