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There an atmospheres in which I can live, like Earth's. There are atmospheres in which I can float, like if it were a really heavy gas. Is there some atmospheric composition where I could both be a...
I have a fictional map for an Earth-like planet, with Renaissance-era humanoid populations. Also, Luna, that is, the exact same moon that we had, pre-Space-Race, is orbiting the planet. My map jus...
You won't miss and definitely won't be among the stars. Set in late 22nd century A.D. we are constructing a space elevator that would physically connects Earth and the moon, the lift will be using ...
In my story, I have a small extended family of 30 to 40 individuals ranging in age from 0 to 50 who are on the run from Chinese and Japanese forces in 1400AD. No place in Asia is safe for them. By...
The idea of uploading one's personality and consciousness to a computer is a semi-common science fiction trope. It has been suggested as a way to essential immortality. In a story I'm working on, ...
After writing this question, I came up with a new question. Consideration The considerations are mostly similar to the linked question (reading it is highly encouraged, as I am trying to post as...
Earth is more massive than Mars, so people on Martian soil would definitely suffer some health issues due to weaker gravity. Blood circulation is badly affected as heart muscles starts to deteriora...
In the year 2099 A.D, humans made a major discovery. There is a rich source of fossil fuel buried beneath layers of Martian soil. It is estimated that the coal deposit that was discovered could fil...
This has been considered other places on the net, but I thought it would be good for the hard-science challenge, since it is often an example of the subtle difference between soft and hard science....
Throwing big rocks at planets is so passe and any asteroid tug can do that now. The Intergalactic Arms Reduction Treaty forbids the intentional bombardment of a planet's surface with large asteroi...
An alien spaceship the size of an Empire State Building experiences a technical issues with its cloaking device, their duty technician needs 24 hours to repair and meanwhile the alien wants to avoi...
The spud gun uses air pressure to shoot a projectile - unusually a potato - at high speed towards a distant target much similar to todays revolvers. The only difference is that there is no gunpowde...
It seems that my ability to create interesting creatures is limited by the need for sexual reproduction, which is absurdly useful, but also rather limiting, method of sharing genetics. I acknowled...
We are in a future where genetics has advanced to a point where arbitrary modifications can be done to living beings. Now a geneticist wants to make a flying human. That is, he wants to modify a hu...
A really simple question - if you built a space elevator then you continue building past the geostationary point to put tension onto the tether. Now if you keep building out further and further the...
Let's say that the world has successfully converted and only depends on renewable resources for our home energy needs. In fact, we have a massive surplus - currently in the form of raw electricity ...
This question is a sort of follow-up to Samuel's previous world map question, Creating a realistic world(s) map - planetary systems. Lots of science fiction stories involve journeying to nearby st...
In this question about a Mars battle set up in 2100-ish, we decided, that the best battle devices would be drones. In that setup the whole "drone" thing was hand-waved, but I would like to know if ...
An x-ray binary is a binary star system consisting of a star and a stellar remnant. As matter is ripped from the star and is then accelerated into the neutron star/black hole by its gravity, x-ray...
It's been 21 years Ms. Frizzle has been doing her best to educate the masses. Even with all the knowledge available provided on the internet, not only do people not take advantage, they choose to ...
This question asked about aliens launching meteors at major metropolitan areas on Earth, but explicitly excluded the accuracy of the meteors from the question. In this specific scenario aliens ...
I have a story in which a King, knowing his kingdom will fall, would like to have a scorched earth policy. The King would order all residents to begin salting the earth to ensure nothing there can ...
I want to put a circular city in geostationary orbit. The city will have a radius of 20Km. I was thinking of using quantum trapping/levitation to achieve this. Here's what quantum trapping is: ...
By Colonies 'in' the outer solar system I mean the various moons and space stations past the asteroid belt. Currently the Hegemony has established bio domes, mining stations, and a few large scale...
Pretend I'm writing a story about a world exactly like our own. Real world physics, no magic, modern technology. Suddenly an eccentric world leader comes up with the idea to replace the melting gl...
