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I'm working on a scenario where one person can be at two places at the same time, kind of like a mirror version of themselves where the original person controls both bodies even though the two bodi...
I am writing a story, and it takes place in a solar system way far off from our own. One of the planets, Veynerth, is a dry, deserty planet, but in certain areas there is high volcanic activity. Ho...
You've got to love the rainbow, it's an awesome sight. But I don't want humans to have the pleasure of seeing the rainbow. What change to the earth, atmosphere and so on, is needed so that humans ...
I am including some dragons in the universe I'm building. Now, I have already decided that only baby dragons will fly, but I am having some problems with breathing fire. My current design: Dragons...
I watched this video. A network of pipes blows air at the bottom of a bathtub filled with sand. The sand behaves just like water. Objects can float or sink in it. Children can play in it. So, my c...
Let's say there exists an Earth-like exoplanet which orbits a normal star, with a similar process regarding the evolution of life on earth, yet the star became a red giant during said evolution. A...
If I were to use handwavium to raise a volcano in the middle of the sea, would it contain metals or ores large enough to be extracted by normal means, like mining with a pickaxe? Everything apart ...
To generate heat electrically inside a balloon for lift would a 20 watt LED light or a 20 watt heating element make more heat to lift a small closed hot air balloon droid and solar cell? Having a ...
Immediately after the apocalypse, a call went out for able-bodied adults in what was considered a noble death sentence at the time: go out into the radioactive wastes and begin to neutralize the fa...
Say that an apocalyptic even takes place, a genetic disease wiping out most of humanity in a matter of years. So, there are no bombs, nuclear winter, or any sort of event that messes up the environ...
Imagine a animal with eyes that are a combination of arthropod compound eye with vertebrate eye,I visualize this like a eye with the sclera covered in a layer of compound eyes,or compound eyes with...
Here's the situation: Mars has been colonized in the near future "“ tens or hundreds of thousands of people live on Mars. For political reasons, EarthGov is against sending weapons to Mars; and, ...
Setup: We are in a alternate timeline where there is a Counter-Earth that always stays perfectly on the exact opposite side of the Sun from our Earth. It has about the same size and mass as our pl...
I'm thinking of a planet in a Goldilocks zone similar to Earth's, with a similar atmosphere, and similar atmospheric pressure and temperature at the surface. Gravity would be variable, based on the...
I want to create a convincing world where gunpowder is a rare and expensive commodity, allowing swords and plate armour to still be used effectively despite the world having current level of scient...
Tl;dr: Humans create a composite image out out what each of their eyes see Humans process the two images into one using their visual cortex Humans can't see infrared because of a lack of photorec...
What could cause the continents to drift much faster than is today. I mean, much faster. Let's say it should take about 1-2 million years from this to this
As explained in this question, current rotary wing aircraft cannot surpass the speed of sound because of retreating blade stall and the fact that the sonic boom would literally rip off the rotor. H...
Lightning is abundant in some places in Earth. Attempts had been made it collect it. Laser triggered lightning below is the closest attempt. By the time it reaches the ground most of the powe...
In my world, humanoid races are an afterthought added by the gods only after they'd spent millennia treating the world as their personal canvas, designing it however they found most interesting. Th...
I imagine a biological creature, let's call it 'Marco' for now. Marco can vomit living slimes that survive by attaching to the ground and by doing photosynthesis, at first soft can be shaped and...
May be the wrong site, but researching for a writing project... What effect would there be on a group of humans living in a lightless and cramped environment (assume underground) for nearly 800 yea...
Could a natural satellite in geosynchronous orbit be used as a counterweight for a space elevator? Does the counterweight need to be of approximately the same weight as the anchor? If so, I suppose...
Basically: I want a highly viscous atmosphere but I want people to be able to walk around. I was thinking earth's gravity * 0.6 or similar. I was thinking that an atmosphere of Sulfur Hexafluorid...
Does matter, physical things that can be observed and measured by our five senses, have wavelength (or phase) the way that radio waves do, and if so can that be manipulated somehow? Let me explain....
