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So I've been playing Xenoblade Chronicles 2 and one of the effects that is used through the game (and the series really) is that ether (the game's version of mana) can often be seen floating in the...
Premise I would like to create a world that is rendered nearly impossible to navigate by natural circumstances. In my particular world, a thick jungle covers the whole planet from pole to pole; th...
If the moon were three times the distance from Earth would it still be visible? I mean: how far away would it need to be to fade out into the darkness of space? My guess is that it would no lon...
We know that the inner and outer core of our planet is made up of heavy, valuable metals in high concentrations. So, what if a technologically advanced, space-faring civilization wanted to mine tho...
Setting: Earth, 5 million years in the future (see note 1). Continents are still recognizable but sensibly altered by tectonic movements. Climate is drastically changed. Civilization does not exist...
Imagine we had an easy way to produce antimatter, we could use it for interstellar travel, deadly weapons or more; but I've thought: How could we use it to produce electricity? As Antimatter annih...
Jane was different from the other kids. While all the other kids were playing with fire, Jane played with ice. Now, Jane has grown up and is an accomplished scientist or engineer in your discipline...
By active night-vision I mean that it emits light in a wavelength other animals can't see, but it can perceive that wavelength, so it can see even in zero-light conditions. Being able to emit lig...
I have often heard/read/watched in fantasy about dwarves drinking mead and lots of it. I recently learned that mead is made from honey which requires bees and flowers which require sunlight. I doub...
Hello everyone, I finally forced myself to sit and draw a landmass. Is pic-related a somewhat realistic representation of a landmass? The dot is a meeting point of 3 tectonic plates (the less vis...
My first post here, and it's more about destroying worlds than making them. Consider this scenario: An earthlike planet where a powerful magic spell has been cast, protecting all positrons from a...
A wormhole usually helps us to create a shortcut to a distant object through a higher dimensional space. Can the time factor in that higher dimensional space differ from our three-dimensional spac...
I'm making a continent with a large valley, "the Great Valley is like a wound in the continent". Swamps are the dominant biome in this valley. It is surrounded by cliffs and inside of it I want the...
I am working on a story and came up with a doubt regarding an explanation given for time travel using wormholes as portals. The below given is taken from Wikipedia link: https://en.m.wikipedia.org...
Assumptions One habitable world in each system (blue sun system and yellow sun system). The two worlds are fundamentally Earth-like. The native humanoid species on each world are genetically comp...
In terms of real world science, if a necromancer was looking to raise long dead corpses for a magical horde, what region or climate or type of area would they be most likely to find bodies that wer...
So I am designing my aliens flash-freeze-on-target mechanism and now I am wondering what would be the more practical use for these flash freezing powers, as a predator or prey. These creatures are...
I have a superhuman character with the ability to fire tightly packed "bullets" composed of electrons at very high velocity and over a distance, say a few meters at a minimum. I know that normall...
My question is fairly straightforward, but answering it is proving rather difficult. The scenario is on a planet with some water. The surface is dominated by deserts, both hot and cold depending o...
I have a character who ends up jumping backwards in time by 24 hours. Essentially nothing else changes, but the character has their jPhone in their pocket at the time of the jump. How functional sh...
I'm building a sci-fi world set a couple hundred years into the future. If humans were to suddenly discover FTL space travel (which are handwaved away as generic sci-fi warp speed or something) in ...
Assume we are dealing with a society similarly advanced to our own but thanks to finding some data-stores of advanced technology are far more capable at genetic engineering. With that extra geneti...
On another world, there is giant ravine leading into a cave where a sentient species live (Let's call them Cavers). They have limited access to materials; the only resources they have are rocks, m...
In my story, a planet of low-tech natives in the midst of war are abruptly brought into contact with a much more advanced empire. There are many historical precedents for this kind of event, and oc...
If I genetically modified a human to have a foxtail of roughly 1 metre length through the use of handwaved genetical engineering - would this have an effect on his diet? Of course an additional ap...
