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I'm trying to find a justification to the sea level on Earth decreasing by a large amount (in the range of 1000 / 2000 m). The change would begin during the Modern Era or in the future, and last l...
Imagine a habitable, water covered, small earth-like orb in space. Let's call it P. From its surface, you see 2 large glowing masses, different sizes, in the sky, let's call them Bs. They are not s...
I have a primarily marine creature that needs to be able to move around effectively outside of water yet still be extremely flexible. My idea is having an anatomy based largely on bony disks simila...
Some fish mouthbrood. Some amphibians mouthbrood. Crocodilians carry their babies in their mouths to water. Is there a reason why there are no instances (that I know of) of terrestrial animals that...
The world I am creating is in a swamp that contains larger than life bugs; this includes fireflies. What I ask is, could the bioluminescence of their glow somehow be harnessed or used as a light so...
Say we have an intelligent species whose body plan is inspired by walking insects (ants, beetles, etc.) and reptiles (particularly lizards). More specifically, let's say they have four legs (I th...
For practical purposes I think about something in line of Cessna 172. As it was the most produced aircraft, then it must have hit some sweet spot or be near it. atmosphere with barely noticeably ...
I wanna build a habitable desertworld which is a gas giant moon. The desired and already semi-fixed parameters are: mass between 0.4 and 0.25 Earth-masses only 10 to 30 percent global ocean cover...
Part of my story will be set on a planet where a culture similar to that of the Old West has arisen - cowboys, frontier towns, homesteaders, etc. In order to make this development more plausible, I...
I've been thinking about dwarfs and their depiction in classical fantasy for while now and concluded that I find it unrealistic and lazy. Some research showed me that the current fantasy dwarfs hav...
Carbon monoxide (CO) is a colorless, odorless, and tasteless flammable gas that is slightly less dense than air. So begins Wikipedia's article on carbon monoxide (CO). To the best of my inte...
Let's say we have an Earth-sized planet and the same general solar activity and climatology. However, the continents are much smaller, and it's effectively impossible to accomplish travel between t...
Let's assume that for whatever strange -- probably magical -- reason, the Moon was suddenly and instantaneously replaced by a planet identical to Earth in terms of mass and size. Its orbital path i...
Without going into unnecessary detail, one of the races of my world believe that the land itself is a dead god, and that by resurrecting it, it will ascend to the cosmos and carry the faithful upon...
A homoculus is an artificial human being that is created through the magical science of alchemy. These creatures are born in artificial wombs by a dark ritual that requires various materials, and t...
I'm writing a science fiction novel where a linear accelerator buried underground has to explode. Above the linear accelerator is an enormous server room which ideally would be heavily damaged. Ato...
The ISS uses port and starboard to differentiate between the two sides of the station. (The Harmony node photographed after it was attached to its temporary location on the International Space St...
Suppose that there is a substance that is produced in nature by an organism. This substance is rather desirable. The reason this substance is desirable can be anything: Whether it is because it is ...
So based on the question can pumice stone be use as castle material on water? I wanted to take pumice and use it to construct a floating road, so my Lava People can safely travel from one volcanic ...
If a great division occurs, sealing two warring cultures apart for many generations, my only explanation so far is a tectonic shift. I imagine water flooding between a long split. But as I understa...
I am thinking about a game where people will shoot out in space, with different features. However, an integral part of the game is no spraying/spamming bullets. I don't want to have it in a fantasy...
How can I protect a ringworld (which creates 1g artificial gravity and has an earth-like atmosphere) from the things that earth's magnetic field protects us? (using real-world physics)
Melange, also known as "the spice", is a fictional drug in Frank Herbert's famous Dune series, which has many benefits (and some drawbacks). In this series of questions, I'll try to see how many of...
I'm writing a short story that focuses on an area with high thermophile activity, like a hot spring. There are known thermophile viruses, but thermophiles aren't able to transmit these to humans be...
I am currently in the process of making a world, and am trying to ground it in scientific fact as much as possible. The world is a hard magic setting, and while fantastical creatures exist, they ar...
