Posts tagged reality-check
I am looking for some guidance in creating a chemical element. I want to know if it is scientifically plausible for a single fictional element to do all the things I need it to, even if at a stretc...
A classic image of mermaids are their long flowing hair that swishes in the water. But in the scientifically realistic sense this makes none. The hair would be nothing more than a nuisance to the m...
In many science fictions we see planets which are designated by a particular terrain type. For example, Dagobah is a swamp planet, Tatooine is a desert planet, and Kamino is an ocean world. Howeve...
Inspired by the answers to What can I add to an oxygen/nitrogen atmosphere to make it unpalatable or poisonous to humans, yet stable and breathable to local creatures?, I am building a planet that ...
Assuming that all Equidae went extinct at around the same time as the American Equidae on OTL (Original TimeLine) Earth, 8000 BCE, and in the same way, via Ice Age... What would have changed for ea...
The Mokèlé-mbèmbé (meaning "one who stops the flow of rivers") is a legendary water-dwelling creature of Congo River basin folklore, loosely analogous to the Loch Ness Monster in Western culture. ...
Apart of the Anatomically Correct Series Vanara The Vanara is a group of people who lives in the forest in the Hindu epic "Ramayana." In there, it describes them as human-like, with reference to...
Leviathans are closely related to hydrophis spiralis. Some characteristics of these leviathans include: continuing to grow until they die and are able to grow almost as large as a blue whale are ...
I have this creatures which were hiding underground for millennia. They are, from the beginning of their history, exclusively nocturnal. They emerged back on surface after moon disappeared (irrel...
In the story I'm writing, Earth gets destroyed and the few million humans that survive go to live on another Earth-like planet. Since the destruction of the planet, the humans do visit their star...
I'm writing creative text and I'm curious to know, just as possibility, can a galaxy by any chance be formed out of a black hole?
in the story i'm writing there is an island of mostly Monotremes which have diversified into a variety of ecological niches from giant platypus's to megafauna larger than the largest Placental Mamm...
I am trying to understand if it would be possible for organisms to evolve by different means other than random mutations and natural selection. Eukaryotes were predicted to be formed by fusion with...
you know a jaw or mouth where the jaw full of teeth fully rotate like a drill or gear to shred their food or prey, usually show often in worm type of monster (my question is not necessary to be wor...
i am not talking about xenomorph or moray eel type of jaws or multiple mouth or lower jaw inside the mouth. but this type of mouth/jaws or i called it double chin jaws where the chin also work as ...
The setting is fifty-five million years in the future on Earth, with multiple humanoid species that have different ancestors, but share similar characteristics. Their ancestors would be animals tha...
Mass of star: 0.75 M☉ Radius of star: 0.69 R☉ Surface temperature of star: 4,620° K Luminosity of star: 0.2 L☉ Satellites: 2 Place in solar system: 2nd Mean radius: 8,725.1 km Mass: 2...
(or some other Lesser Canyon) I'm playing with story ideas for a videogame that takes place in the post-post-apocalyptic US. Everything is overrun with monsters and ocean horrors and whatnot, you'...
In a humanoid mammal, say 15-20 feet tall, how would the brain, heart, reproductive organs, facial feature and other attributes scale up? In very large mammals, the brain seems to be comparatively ...
I've recently been playing a alien game with various alien species. After playing for a bit, I wondered whether or not a 6-inch tall intelligent race could exist. I can already see some major disa...
I'm writing a short story where a group of explorers found a mysterious cave in a remote jungle , Inside the cave they find strange paintings of spirals resembling portals , after exiting the myste...
Vertebrates on land are limited in size by various factors. However, in the water, they can get much larger. How large could an aquatic humanoid creature (like cthulhu) realistically get, and what ...
Would the principles at work in the theoretical Alcubierre warp drive apply to a slower-than-light starship? I'm building a setting in which FTL communication and travel is impossible, (due to vio...
Having your radiators tactically protected from enemy fire by the armor shape of your space warship is nice, but having a regular one or double-sided radiators is still a vulnerability. Other conce...
In my alien world life has evolved very convergently with life on Earth. Carbon-based lifeforms managed to evolve multicellularity and evolved a lineage of organisms in line with early fish, howeve...
The Apex predator of the Sea of Grass biome from planet Andromeda is mostly bipedal, but capable of facultative quadrupedalism, it has long limbs, powerful claws on its hands and is roughly the siz...
In my world, I plan for an alien pathogen to cause drastic mutations in all lifeforms, reshaping animals and humans alike in a scenario of near inversion of positions, with animals achieving human-...
I'm currently working on something where breechloading rifles and cartridge shot are developed very quickly over matchlocks and flintlocks. What major technological hurdles need to be overcome for...
I'm working on a military sci-fi piece that involves a lot of exo-skeleton enhanced, well, parkour -- for lack of a better term -- and was wondering how to deal with descents from great heights. ...
The planet I'm thinking of is of similar size and distance from its star relative to Earth, but it lacks oceans, instead consisting of one massive continent with a huge mountain range (reminiscent ...
Could a life form that uses superfluids as part of its biology exist? I've read in places that the issue for life outside of Earth and especially the theorised silicon lifeforms is that the existe...
Shapeshifters and mass... ever the bane of realistic science fiction. Basics: Let's say someone is changing shape (for whatever reason, voluntary or involuntary, it doesn't matter for this purpos...
Something like the above (Natural Springs by Ellie Cooper) - either where the water originates from atop the tree through regular rainfall, or is directed up and into the tree via the spring (or ...
I have been toying the idea of fusing our white blood cells which search and destroy malicious foreign bodies with artificial intelligence to fight various disease causing pathogens, my worry is th...
Say there's an in-universe weapon so odd looking that it is rumored to have been stained by the blood of a "holy" mortal, so much so that no amount of water can wash it away. Is there a chance hu...
While watching Biblaridion's Alien Biosphere series, an interesting point came up: in Biblaridion's fictional world, atmospheric hydrogen sulfide is used as an energy source for chemosynthetic bact...
I'm building an earthlike world that has a moon orbiting a gas giant. Is it possible for the moon to always be between the planet and the sun? Also, is it possible for a moon to rotate around its o...
I have settings with orbital colonies around the earth. First off my idea is, if it is not profitable we would not fund it en masse. Therefore I came up with the idea that in the future we discover...
For the fluff of my story one of the space-ships is equipped with what I hope is one of the biggest F-you weapons in ship-to-ship combat: a miniature black hole launcher. The launcher fires a whop...
What is one factor or ability a creature needs to sustain infinite work? By work I mean physical activity, and to make it more specific running I want a creature that can output work, or run until...
A Gelatinous Cube is a massive, slime-based jelly that haunts underground dungeons, and is composed of an acidic substance which breaks down material. These creatures are unintelligent and crawl ai...
In my world, I am looking for a crater formed by a meteor impact that deposited a large number of resources there. The final crater should be 200 miles in diameter. I would like to do this with min...
Rock snails are giant slug like creatures living in the forest and underwater, they are not mobile in adulthood and their shell resembles a giant rock. They grow up to being 8 meters tall and the...
To make things simple, assume Earth had a slower rotation than it does. How would that affect daily highs and lows in temperature? Is there a simple way to figure it out? Was thinking a week-long r...
After looking at concept art of various humanoid creatures portrayed in science fiction I noticed many artists tend to make the abdominal muscles of their creatures/aliens look similar to those mus...
Is my planet realistic? It doesn't need to be able to support life as it's just another planet in my solar system, but is a planet with such a high density and gravity really possible? I calculated...
An intelligent creature who's natural life span is around 50 years in which they need to feed to not die of starvation after which they naturally die. But killing other beings of their own species...
Extraversion and introversion are a central dimension in the Big Five personality model (or OCEAN model). Being introverted or extraverted may not be mutually exclusive, but, when averaging out ove...
Let's say humanity is a type 1 civilization, ( essentially a civilization that can control there entire planet and harness its energy ), now let's also say humanity wants to make an intelligent spe...
The crafts would have to contain large farms in order to sustain the immense amount of people, and they'd obviously have to be large and spacious to have good living conditions. I did some research...
