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One rule: it cannot be caused by aliens or AI invading the planet. But it is okay if an alien race causes the destruction in any other way. It's an Earth-like planet. I need the effects of the des...
As stated in the title: is there any realistic way to either evolve (in our evolutionary past) or acquire via genetic engineering an immune system better than what we already have? I tried to do so...
I thought of this question when I heard Einstein's statement on WW3, and I wondered if humanity was setback, would North Americans have any mounts that would rival those of the rest of the world? (...
A universe-destroying parasite is set loose, and basically earth is placed under magical quarantine. (Think of it like the world is wrapped in magical cellophane.) My question is, how would earth's...
So, I find almost every video game funny. I mean, in the big picture, how many theoretical physicists did you see toppling interdimensional empires, punching elder gods in the scrotum, and killing ...
I've been experimenting with a fantasy world that is flat, with the sun fixed in place over the centre. The day-night cycle is provided by the sun dimming and then brightening again. Most of the re...
I wanted two characters unaffected by the heat and gravity to be close to a super massive black hole within the accretion disk, at times moving in orbit and at times completely still. Stars and p...
I wanted to create a scene where two god-like characters are talking or fighting on a planet or fragment of planet to which they've teleported that's about to be obliterated by a black hole. The c...
I've been poking around similar posts, but none seem to contain the information I'm looking for. I'll try to keep it brief. In the year 20XX, some powerful organizations are trying to "land" an as...
My story has a race exactly like humans, except they grow to be on average 9 feet tall. One of characters belongs to this race, but she is considered a dwarf to her people. This causes her to live ...
Background We know about the can-and-string telephone. There are various claims about the maximum distance over which this is effective. Let's say 100 feet is possible without too much loss and...
The hero saves the captured giant, and as a reward, the giant presents the hero with a magic ring... However, the ring is made for giant fingers, so the hero decides to wear it as an armband instea...
I'm creating a new setting for a novel. I'd like to build a world where the interaction between the planet and its satellite/satellites can generate a normal tide excursion around 6/8 metres. Furth...
This question has been asked in similar forms on this site already with some good answers like here: What Color Can the Sky Be? How could the sky be orange in a breathable atmosphere? What woul...
I'm designing the type of ships an amphibious race could use for long distance travel, like a floating house, following oceanic currents. I imagine it shaped like an iceberg, with more structure be...
I once show a picture depicticting the idea of an ultimate solar system: Image Copyright Sean Raymond In this solar system there are 8 planetary orbits, each containing 52 equal-mass, evenly-spa...
The Hegemony is in need of superconductors for their fleets of stratospheric craft (stratocraft for short) as well as many, many, many other applications. I recently read metallic hydrogen is a the...
As an ancient organism whom currently occupies a large chunk of a planet beneath the surface, I have a pesky issue with an invasive species. These humans have decided to colonize my home, mistaking...
I once saw an experiment with mice, where they connected the bloodstream of a younger mouse to the bloodstream of an older mouse. And the older mouse became "younger", or at least healthier. If I ...
FTL (Faster than Light) travel exists,taking around 88 hours 48 seconds to travel 1 light year. FTL communications also exists and takes only 53.28 seconds to travel 1 LY (Light Year). Jumps longer...
A creature in my story was largely inspired by the xenomorphs of the Alien franchise. In wondering how long it would take one of these creatures to grow from conception to maturity, I decided to lo...
Premise and research I am simply trying to find a reproducible framework for use with creature-design. In my research I have found the larger an animal is, the more likely that animal is to break ...
If someone in the 14-15th century world had the knowledge required to build an engine for use in locomotives and ships, what kind of engine could be made using technology that already existed back ...
In my story the inhabitants of Earth are near extinction. They want to make a capsule of a bunch of human DNA and blast it toward the Andromeda galaxy. They take 1 oz of every blood type still liv...
So in my world it is the future and ALMOST ALL NATURAL METALS are gone. They needed power to get delivered in some form. One scientist thought up a solution: Human hair. The science community was ...
