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Disclaimer: This question, unlike my other tree related question, was brought about by pure whimsical daydreaming. I also threw the term "evolve" around a lot, I should clarify that what I asking i...
It's a fairly common legend that trolls turn to stone when exposed to daylight, and I was thinking about using such a creature in a story. I'm searching for a plausible way of justifying such a wea...
So, in this generic fantasy setting, where magic is technology, I have trouble regarding adventurers. To avoid rolling up a new character every time, adventurers are rebuilt shortly after death at...
Background In case you haven't heard: there are places in the Amazonian Jungle called Devil's Gardens. The gardens are large swaths of land composed of almost entirely one single tree the Duroia h...
Inspired by this question, how might one determine the shape of the world given a cosmology with no cycles? The moon, sun, stars, and planets are all fixed. The Earth does not rotate. You can't ...
In my story there are multiple planets in a solar system. And each of them are inhabited with different species. The main inhabitants of one planet are "bird+human" things. Is it possible for th...
You sure lad? For some of you folks normal beer is already an acquired taste, but this... this beer definitely is. You understand that this stuff is brewed with water from the devil's choke? You...
How plausible, or implausible, would it be for a lineage of birds' feathers to evolve into sharp, hardened plate-like scale armor (and/or blades), comparable to that of pangolins? And if it is plau...
Drug abuse is becoming more and more serious in my (made-up) country. A researcher team is now working on a new drug called Biological VR which has the following properties: The drug is a psychoa...
Everyone suddenly disappears from earth except 35 people randomly scattered wherever they were before everyone disappeared. How long would it take on average for 2 or more people to meet? What othe...
I have been wanting to make a carnivorous reptilian creature with the ability to speak fluently using its speech muscles and its vocal tract, it can also perform facial expressions just like how hu...
I am designing a terraformed Venus, where the planet has been given an Earth-like atmosphere but keeps it's original rotation rate. Colonists are importing Earth life to Venus to add a biosphere to...
Assuming a world where there were no steam engines available, would it be possible for large passenger or cargo trains to exist? Would it be possible to use horse-engines to power a locomotive? I...
Assuming the moon is the same size as ours and its core is generating a magnetic field, and the copper deposits are quite large, consisting of a tectonic plate containing huge deposits of native co...
The snallygaster is a cryptid from Maryland. It is often described as resembling a half bird/half reptile like creature with large wings, a metal beak, tentacles like an octopus (sometimes depicted...
Let's assume there are more than 3 spatial dimension, for example 4 (the 4th not beeing time, but spatial) Would a common energy discharge, explosion etc. affect the 4th dimension? I am not sure...
In my story, reasonably far in the future, an intrepid group of explorers are on the first manned mission to the Andromeda galaxy, travelling close to the speed of light. They slumbered in suspende...
In my story, there is a villain who has very powerful magic on his side. Basically, he has his own dimension, where he keeps dragging parts of the earth into, piece by piece. It kinda works like th...
What examples are there in science fiction of molecular shields that can cancel out or "eat" certain molecules--and are they plausible? Is it hypothetically possible to create a giant levee that is...
In my fantasy world, monsters of several varieties all exist. However, it seems the majority of them have enough stab resistance that blunt force is the best way to defeat them. I want to have a va...
So I have been thinking about making a building on the moon that would create a 1g environment for the people inside without making the structure too inconvenient to attempt to get into. This is my...
On 20 October 1861, while in Paris, Ferdinand Maximilian Joseph Maria von Hapsburg, brother of the Emperor of Austria-Hungary, received a letter from Jose Maria Gutierrez de Estrada, a Mexican nobl...
I've been toying with the idea of a society with alternative forms of families or social structures. In one individuals of coming of age (socially imposed) or due to a biological necessity (biologi...
What I "want": My fantasy world has lots of volcanos. Deep under the surface there is a root-like form of life predominant. It grows in big bundles and searches for important minerals, gases, flui...
Let's say that in a different timeline, humans evolved to eat insects. How would that change the world today Note: Suppose that this didn't have any mass changes on our anatomy and that our species...
