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Ever since reading through the creative answers in this question (How can I explain alien skin being different colors?) I've been thinking about the logistics behind fantastical skin colors. Howe...
I was thinking about how we differ from crocodiles and sharks in terms of teeth. Now of course we don't have carnivore teeth but we also don't grow new teeth unless you are talking about a young ch...
I've seen many questions here about humans being capable of photosynthesis. And I know, humans don't have enough surface area to power themselves full time. However, that's assuming that the energy...
The Humern Empire (no relation) spans the galaxy, using a variety of methods to move from place to place and planet to planet. One thing all of their modes of transport share is that they are not ...
There's a human settlement at the north pole of the moon large enough to sustain expansion outwards for say 100 km in all directions. Humans like to think in terms of four principal cardinal direc...
A previous question's answer established that naturally occurring positrons could be gathered through positron-emitting isotopes. I've started looking into means that these isotopes could be gather...
I'm developing fictional technology for "perfect recycling." A large plant that takes in water and every cubic millimeter of waste humanity can produce (in the local area, of course). It disinteg...
So, I'm trying to figure out a world's cycle (length of a year, day, etc.). The planet, Vixeruka, is about 3 times larger than Earth is, making it a super-Earth, and it's the second planet from it...
In a previous question, it was established that antimatter could be "mined" through positron-emitting isotopes. By gathering positrons from decaying positron-emitting isotopes (potassium-40 and al...
I am currently in the early stages of mapping out a conlang for a race of boar-people. I was stumped trying to think of what limitations, if any, having pronounced lower tusks would have on the de...
In a world very similar to ours, rain has a high concentration of simple carbohydrates in it, enough to sustain life on the surface. After some rainfall, this sugary rainwater is left behind and so...
A spacefaring people buries their fallen heroes in space. The bodies are adorned in uniforms (fabric), equipped with the weapons they carried in life (mostly aluminium, steel or polymer, but contai...
Okay so the story takes place up in the northern hemisphere around glaciers and polar bears and all that good stuff, its main character is named Xavior and he is a good human adapted to the radioac...
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Whenever terraforming Mars comes up, the subject of its magnetosphere inevitably arises. When that happens, someone is bound to suggest using nukes to restart the core a la "The Core". Assuming th...
I am considering setting my next D&D campaign on an earthlike but small planet. By "small," I am imagining a world that still feels vast, yet is circumnavigable over land and/or water with low ...
The idea of the trope is that at some point, Earth is doomed, humans flee into the stars, knowledge of Earth is lost in the process, eventually becoming legend or myth, either due to loss of inform...
So there's been some industrial espionage committed against T-Rex Forever LLC. The method for how they acquired their T-Rexes has been stolen. Terrible Lizards Inc has acquired a mated pair of Vel...
Setting aside concerns of containment for now; how much energy would it take to create antimatter? And how much of it would we get back using it as a fuel in a matter-antimatter reactor? What I'm ...
The idea of an elevator reaching to the near cosmos is very tantalizing when trying to think of ways off planet. A major draw back to this idea is that a long, thin tower into the atmosphere seem l...
So I was thinking of a land animal with a biological harpoon, I'm not 100% sure why it would evolve with it. Details of it would be: Quadrupedal Medium-sized (similar to a pony) and would hunt s...
In my world, humanity reaches their new home among the stars by way of a portal that pops into the solar system one day. This portal instantaneously transports those who enter to a place that is lo...
In my universe a race of humanoid beings caused 3 planets: Earth a larger rocky planet and another earth sized rocky planet to crash and collide into each other, but still allowed the humanoi...
Remember the Xenomorphs from aliens, how they didn't show up in heat vision? I was wondering how you could recreate that effect biologically... a creature which doesn't pop-up on IR (at least, not ...
Let us assume that in the future, there is a formerly human colony on Mars that has existed there for some centuries. The people of this world have had time to adapt to the lower gravity over at le...
