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I'm researching possible materials that maybe be used in the far future. I came across something called metallic oxygen. If oxygen is compressed to 10GPa, it turns into a dark red solid O8. If this...
I know that practially all other terrestrial invertebrates are inherently limited in size, primarily by their exoskeletons, and by their respiratory systems, which impose upper thresholds on their ...
I had an idea for a race of humanoids significantly larger than normal humans, but the females would need larger breasts than humans, for feeding bigger babies, obviously. How could their bodies ad...
In a universe where humans can take elective surgery to render themselves ruminents, what would be the effect of that surgery in regards to weight? To keep things simple: The surgery involves th...
Context In one of my stories I am having a villain try to bring back the beauty of the giant arthropods in the Carboniferous period by genetically engineering his own personal, mega-pseudo-arthrop...
Will be possible in the far future to use megascale engineering to create an artificial hollow moon to give Earth a big moon in the sky like in billion years ago? Since it would be hollow, it would...
The Earth-like planet I'm working on is the culmination of years of labor by the galaxy's best scientists. It consists of fully artificial ecosystems, and is, for all intents and purposes, like Ear...
A flaw very often pointed out in your run of the mill genetic terror story is the instant effect of genetic changes. What would it take for a specific change in the specimen to actually appear (ne...
I've been trying to explain the origins of a fantasy world I've been constructing. So far, I have the idea of a Promethean (advanced race of aliens) Penal ship crashing (probably from an internal u...
I am trying to think of a natural event that causes very big impact to human lives - massive movements of people, shift of power, etc. This event happens in a medieval period on an earth-like plane...
I have been thinking about which mutants from Marvel are most realistic and Zeitgeist comes to mind. Long story short, his power is weaponized acidic vomit. He can spew it a few meters away at will...
I'm developing a tree that has a peculiar fruit. Instead of having water in said fruit, there is nothing but sugar. The tree pumps sugar into a hollow orb which slowly "bakes," caramelizing into an...
I know it looks like a lot of topics but hear me out here. I am not talking about some nonsense explanation for this ability but more of an evolutionary process. Imagine that for numerous generat...
If one had three humanly habitable planets with the same gravity but different atmospheric densities due to composition, namely Earth, one with a denser atmosphere (about 1.5x as dense) one wit...
If Earth instantaneously reverted back to when the only organisms were small microscopic creatures in the sea, would evolution happen the same exact way creating the same animals and species? Was c...
I apologise in advance for the graphic nature of this question. I guess it just had to be asked. I am looking for a way to make the feces of my alien vertebrates some color other than brown or gr...
So, in my story, in a prelude to an epic aquatic fight scene, my main character gets chased by a great white shark. He swims as fast as he can but he can't escape. Just to clarify, he's wearing one...
Premise I am in the formation phase of a fictional world. I would like one of its notable characteristics to be extremely large waves. On Earth, most of our large waves are triggered by earthquake...
My question is how a species, given sufficiently advanced technology - could block out all - or most - visible light to a generally earthlike planet without rendering it uninhabitable. The only c...
How could a humanoid race and/or a human subspecies develop eusocial behavior? It's more common in insects like bees, but the naked mole rat is a eusocial mammal, so it's possible, any thoughts on ...
Firstly, I'm sorry that this is a rather horrible question to ask! Would it be possible to keep a whale alive whilst harvesting its fat or blubber? These whales would be living in captivity alread...
Ideally using today's technology, or that of a few decades in the future, how might scientists engineer an island, floating in the sea1 fulfilling these criteria? it is large enough for humans to...
The moon in question is composed entirely of a radioactive substance, and showers the earth with strong radiation. It is responsible for a particular kind of cancer that causes the cells to multipl...
So there is a mountain range. It is about 3000 miles long, 500 miles wide and the average height is 5,000 m. Now there is still quite a lot of land and I don't want to make everything behind the mo...
Is it possible to calculate/estimate the size of a star's heliosphere? If so, how? I am working on a semi-near future, sci-fi novel. As part of the technology base, humans are able to travel betwe...
