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This is a mixed physics and conceptual exercise: In my story, we are aboard a multi-generational mission to resettle Humanity on a new planet in our galaxy. In the internal life of the ship inhabi...
I wonder if it is possible to install artificial equipment that would exhaust oxygen into air in otherwise CO2 atmosphere so that locally people could breath in open air without any kind of tent or...
Imagine a spacecraft travelling at very high speeds, say 0.3c. While a crew member could theoretically suit up and perform spacewalking maintenance on the outer body of the ship, will they be expos...
I am trying to make a reasonable augmentations. The settings is post cyberpunk, so the tech is little more advanced. For coolness I would like to have ability to jump around 5 meters high ground-le...
In my world a giant ship attempts to land on a planet, sadly it fails. Fortunately the top half is intact but the bottom is ripped up, holes all over it, basically destroyed except for some lucky s...
So, dragons. They're omnivores and, while they would be potentially formidable hunters, mostly scavengers. This requires them to be more sparing with their energy. Still, they fly and flight needs...
This rogue planet is a cold rocky world where liquid methane replaces water, hydrogen is used in place of oxygen, and a large moon. I was thinking the large moon would have a large tidal pull that...
In my world I want a massive region (7 million mi²) to be as flat as the Great Plains. There are no trees or hills; basically it's just a grass sea. I am trying to figure out what kind of weath...
Many planets out there will be water worlds. Those generally come in two flavors: either the oceans are so deep that the water turns into high-pressure ices like ice-six, -seven, -ten and -eleven o...
Imagine a plain made of tall grass that sways in a gentle breeze. Everything is a deep green and there is a riot of life sprouting from the black ground. A few days later, the grasses turn brown an...
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...
My question is, how do we make humans more able to resist falls(not just free falls, also normal ones and from a "medium" height, 2-10 meters) and be able to move afterwards, at least for the jumps...
I have a maglev train starting in Paris, going through Siberia, bridging over the Bering Strait, and running down the West Coast to San Francisco. There are other major lines splitting from this on...
I recently finished watching one of the Star Wars films, the one that features the sarlaac pit. When I saw it, I began to immediately think how such a thing would evolve. The sarlaac pit is essen...
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...
Many alien worlds will most likely be water worlds. I was wondering what the deepest possible global ocean dept is where land is still possible. I think that volcanic islands will still have a chan...
Postpartum depression among humans is a thing that is "normal" insofar as it happens a lot, but it is not "normal" in the sense of "a thing that we don't worry about"; it doesn't happen to absolute...
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...
Say I have a race of obligate carnivores (for simplicity, we'll say they're felinoid). They have carnivore dentition, and must eat meat as a major component of their diet, but they can also eat fru...
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 ...
The continent is split apart by a dense area of mountains, covered in glaciers. Any travelers who with to go from one part of the continent to the other would either have to cross the mountains, or...
Is it possible for a planetary system to form and support life similar to earth-life inside a region of 'timespace' (which is the space within a black-hole), assuming that there is enough space/tim...
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...
So I'm pretty new to chemistry and all this, but my world involves superpowers, which of course involves immense energy to have the characters use these powers. However, I want to stay consistent w...
In my story there are a species of humanoid bipeds (i.e., two arms, two legs) that have a more-or-less human arm anatomy but differ in having non-retractable claws instead of nails on all five fing...
