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The Progenitors are an ancient race of almost infinite technological sophisitication, who mysteriously vanished millions of years ago for no good reason (I don't like TV Tropes, but you are welcome...
My human civilization is facing (much like us) the threat of anthropogenic climate change. For whatever reasons, they are unwilling to take action by reducing the use of fossil fuels and refuse to ...
One aspect of the world I'm conceptualizing is that some employees might opt to work while in a medically induced coma, or work at night while they sleep by using brain implants that induce a type ...
I am designing an alternate world where the meteorite that caused the massive dinosaurs extinction never hit Earth. I am stuck in one point: If the massive deaths of the dinosaurs worldwide never h...
Background This is a Terror Bird: Specifically, this is Titanis one of the largest of the carnivorous Phorusrhacidae; it was perhaps 2.5 meters tall and 150 kg. I would like a terror bird that...
In my book series (link here), there is a character named Rhys. Rhys is a highly mutated wasp whose mutation gave him the following benefits: His armor is immune to most of the medieval-style wea...
I'm trying to make a world where my "humans" have ZW sex-determination system that means sex is determined in the ovum instead of the sperm. Could I just easily hand-wave everything else as being ...
I am writing a fantasy novel centered on an Earth-like planet with icy rings like Saturn. This question deals with certain effects of having such a ring system. Assume the planet is Earth, the r...
As far as I know airships, specifically rigid-airships, do not have an upper size limit other than what is required by practicality and how willing you are to build gigantic airship sheds. But one ...
I have a planet that is tidally locked to its sun. The ocean is shallow (a few hundred meters) and was artificially created in the past by harvesting the system's Oort cloud or outer-system ice a...
I am creating a binary star system with a likeness to the Alpha Centauri system with an outer orbiting planet like Proxima Centauri. On an earth similar planet what would the temperature variation ...
So there's this planet that, several decades earlier, suffered a massive famine and drought that made habitation impossible. Everyone still alive on this planet died, except for 2 escapees, both of...
In all fantasies that I'm aware of, the setting is in the northern hemisphere (noted by frozen north and barren south). So... Could advanced civilizations exist on a continent that's located in the...
Many fictional characters,specially in the anime art have shoulders bigger than any other upper body muscle. Normally the obliques,chest and latissimus dorsi are the biggest muscles in the upper bo...
Question: Could colonial organisms form into a sentient being, something like a human, for example? Could they evolve into beings with thoughts and feelings? A race of colonial organisms taking the...
Earthlings, I live on a world where most places on my planet has four seasons, just like yours does. We also have one sun and one moon, presumably. It's been not even a year since I came of age (2...
What kind of planetary conditions would be required to make a place with really intense winters and summers? Is it even possible? For example on the poles they can go with out the sun for half a ye...
I remember playing this game back in 2010-2011, and In minecraft if you found a waterfall you could actually swim it up vertically, it was difficult but possible. Does this apply to real life to...
In near future a large spaceship is built. It is nuclear powered, has a crew of two dozen, and is propelled by an advanced ion drive like VASIMR. The Variable Specific Impulse Magnetoplasma Roc...
What realistic mechanism could be utilized to allow my drone to hover and move around in a visually pleasing and non distracting way? I am currently working on a short sci-fi film, which, among ot...
In Kim Stanley Robinson's new novel Red Moon the first few pages describe a method of Earth-to-Moon transportation that I had not encountered before. The idea is to use a magnetically levitated and...
I am working on the realism of a fictional planet which has an average temperature lower than that of the Last Glacial Maximum (LGM), and possesses a single large supercontinent rather than distrib...
I'm writing a novel about a (small) group of people with extraordinarily long lifespans. Now I am wondering on the psychological aspects of that, which has been a side-topic here and there in simi...
The scenario Many science fiction novels are concerned with aliens visiting Earth, but what if aliens have no interest in Earth at all and yet they arrive at the Solar system for the sole purpose ...
Writing about suspended cities within a planet's atmosphere! The story itself focuses on the air forces that fight for each of the hundreds of floating city states living in the sky, but that's her...
