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Inspired by this answer: Suppose there is an enormous dragon sleeping underground (let's not worry about the biomechanics of how such a creature could exist). One day, it wakes up, shakes the eart...
I was thinking of a hypothetical species of snakes that join together for protection called Ladôni, due to their habit of mobilising in massive beds which make them resemble a large multi-headed s...
Judging by our own planet we know what the effects of a moon on a terrestrial planet are. We also know that if a planet has two moons on the same side you would get insane tides and that two moons...
I was inspired by geckos which can sever their own tails. I wonder if a creature which has such an ability, especially with a high regenerative power to grow its body parts, can sustain itself ove...
If a person is sent out of their hermetically sealed community and in the process becomes immune to a deadly disease. When the person returns will the immunity make them a carrier and infect/kill a...
Eureka! Our hero just discovered the secret of time travel, but what to do with it? "I know!", he says. "I will travel back in time as far as I can and hand them a modern firearm. They will learn h...
I understand that particles such as tachyons don't really exist and are unlikely, but say for the sake of this question they do. Would these particles bond or interact with atoms? By interactions I...
If your ship just got trapped inside the event horizon of an super massive black hole, could the ship "accelerate" back out with an alcubierre drive?
So my character (16 yr old girl) got a deep cut (inches across) from a dagger across her torso and is knocked unconscious. (She falls onto her back) She had just enough time to contact her friends ...
Here is what we know of Earth: Mass: 5.972 sextillion metric tons Diameter: 7,917.5 miles Density: 5.51 grams per cubic centimeter Rotation: 24 hours Revolution: 365 days Core: 760 miles wi...
Long ago, I asked a question on how to make possible turning the nine realms of Norse mythology--Midgard, Asgard, Vanaheimr, Jotunheimr, Alfheimr, Hel, Nidavellir, Niflheim and Museplheim--into nin...
Imagine if you will a star comparable with our sun and a planet like earth orbiting at roughly the same distance around this star as our earth around the sun. Would it be possible to place a plan...
Some of you may know my mutant thread, and guess what? It's back. I'm wondering if there is any biological means to improve muscular power without greatly increasing the volume of said muscle. My...
Is it possible, due to asteroid mining activities, for a space-fairing civilization to produce a dust ring around a very large asteroid (Ceres)? In my world, there is a lot of ore processing being...
I will keep this short: I am writing a story about a Society with lots of Superheroes, and I want them to discover that they have powers after inhaling some sort of chemical. I want this to be pre...
An artificial endocrine gland is cultured in the lab and is to be inserted in a person. This gland functions by secreting special substances in the blood stream. It needs to be placed in a positi...
Consider such a tidally locked planet: Many issues with tidally locked worlds have been discussed, but I'm not clear on how the water cycle for an otherwise Earth-like tidally locked world, woul...
What would be the specific conditions required for a planet to be a more ideal version of Earth? I want the world to have a much larger proportion of land covered by lush jungle and forest ecosys...
Some follow-up thoughts on this question... Hydrogen isn't very soluble in water. Oxygen is more so, but still sufficiently insoluble that most oxygen-breathing Earth creatures use special oxygen ...
I know there are similar questions on here already, yet this is different because I don't care about traditional farming in this question. Environment This meant for food production on interplane...
The Dreamlands are a vast, alternate dimension that can only be entered via dreams. They are divided up into several sections, all of which are inhabited by monsters who serve the idiot elder god A...
I have a rather odd setting where one of my characters gets cursed/blessed with indestructibility, more specifically all of her cells have stopped degenerating and dividing and they all are now imm...
I am an aspiring science-fiction novelist. I am experimenting with a world I'm trying to create and I wanted a couple of expert opinions on Atmospheric composition; 53% Nitrogen 27% Oxygen 3% Xen...
The artificial womb has become a reality, freeing many women from the 9 month burden of carrying a child. Unfortunately, it was not the liberating game changer that feminists hoped it would be. The...
What would it take to build helicopter blades that can fold in several parts? This is the continuation of a question on Aviation. Unfortunately, there have been no use case for this for existing h...
