Questions tagged [science-fiction]

For questions relating to worlds with a setting of common science-fiction.

Filter by
Sorted by
Tagged with
22
votes
17answers
5k views

In the far future would weaponizing the sun or parts of it be possible?

Lets assume we are dealing with a futuristic setting set several thousand years in the future with major galactic empires controlling thousands of systems and producing all sort of things that we can ...
2
votes
2answers
214 views

Enhanced Nuclear Fission Weapons: Casaba Howitzers VS Nuclear-Pumped Laser

So, after finding the answer to why not all fissile material is used in a nuclear fission bomb (being blown in multiple directions), I thought that to solve this, the blast should be more focused and ...
4
votes
1answer
262 views

What kind of wounds would a pulsed laser weapon really create?

Lasers and other heat-based weapons in sci-fi are often misrepresented in how they deal damage. A common reaction to heat based weapons like lightsabers, laser rifles and plasmaweapons is to say they ...
6
votes
2answers
175 views

Deuterium Fusion Reactor + Direct Energy Conversion - what sort of stuff would this sort of reactor need?

Looking at 3D Modeling a Deuterium Fusion laser-based reactor that outputs to a direct-energy conversion (tube or something?) based off Halo lore. (WIP fan project of mine, modeling a UNSC ship from ...
2
votes
2answers
478 views

Possibility of forced thinking [closed]

Would it be possible to electrically trigger the brain to do certain things? For example, if you shock a muscle in just the right place, it contracts. Could a similar practice be done on a brain to ...
10
votes
4answers
1k views

Does this magic system violate the laws of physics?

I’m writing a story and the summary is extra universal aliens going to war with each other The magic system used is Clarketech known as the void system it’s more or less based on this formula Magic = ...
1
vote
1answer
51 views

Each industry in a town (maybe a bigger area) controlled by a single robot and its team? [closed]

In the future, after some apocalyptic events and a lot of bad luck, humankind has risen thanks to robots. In the town where the story happens, each industry (paper-making industry, wood industry, etc) ...
-1
votes
3answers
243 views

Anatomically Correct Cthulhu [closed]

I am interested on writing an anatomically correct Cthulhu, made by HP Lovecraft. Some information we know about him: Can make people go insane just by the sight of him. "Sleeps" for ...
1
vote
2answers
123 views

When can I have my megastructures? [closed]

I'm building a science fiction setting. The present is just like ours. Some time in the middle of the 21st century, humanity invents technology that allows travel to nearby stars within months. By the ...
8
votes
3answers
386 views

How big would this space station have to be?

Imagine a world very similar to Earth (and about the same distance from its star as we are to our star (it's the planet from my other question). But in another solar system (let's say in Alpha ...
6
votes
3answers
1k views

Can you modify children's DNA after they are born, and if so, up to what age? [duplicate]

My story is Dystopian placed after a nuclear fallout, in a small group of isolated cities with futuristic technology. The plotline is that the government is kidnapping children with disabilities, ...
17
votes
10answers
3k views

How could a subterranean alien lifeform develop space travel?

I have a sentient lifeform populating an Earth-like planet in terms of gravity / composition. But since that world is close to an old K Type star, the atmosphere is evaporating and letting UV rays ...
9
votes
12answers
3k views

Defending a planet's surface from ships in orbit

For a story I'm writing I'm planning a large-scale battle between human mercenaries on the surface who will eventually come under attack by hostile alien forces. At first, the fight will feature small ...
6
votes
4answers
246 views

Using pre-steam technology how can a large bore tunnel be used to drain a lake from below?

General scenario A planet similar to Earth but with only 1% of Earth’s water supports a civilization with pre-steam levels of technology that live near a river on the south side of a mountain range. ...
4
votes
2answers
138 views

How to build a massive canal system with the aid of limited magic that does not substantially affect anything else?

Previously I have asked about my desert world Skara Could canals solve H G Wells Martians water shortage problems? To recap: For current purposes such a world would have gravity and atmosphere ...
5
votes
3answers
193 views

Biological EMPs, are they possible?

It could be argued that we already have biological EMPs in the form of solar flares. But what I'm looking for is a sort of a half baked idea for a planet the had life forms that produce natural EMPs. ...
5
votes
2answers
467 views

What would be their physical limitation if human could fly?

In my world, humans have the innate power to fly. This is a supernatural power, like superheroes, so there's no scientific explanation. However, they still need oxygen to breathe, G-force is still a ...
2
votes
6answers
563 views

In this universe with these technologies would HUMAN infantry still be useful for the military?

In my previous question about galactic empires the subject of human infantry was not the main focus so it was not discussed properly. And so I think it needs to be covered as I'm really trying to ...
1
vote
2answers
131 views

Ability of frozen embryos to withstand many Gs, and the cosmological event horizon for a laser-powered sail ship?

I'm writing a book about a civilization started by humans who sent a laser-powered sail ship with AIs and frozen embryos to the edge of the cosmological event horizon (the furthest we can travel ...
10
votes
5answers
3k views

Huge lasers firing into orbit and eye damage; how to prevent mass blindness?

There are a few uses for ground-to-space lasers in science fiction settings. One is the laser broom, used to shoot space debris until it deorbits and burns up. Another is beam propulsion, or sending ...
5
votes
6answers
1k views

How would a treaty forbiding the use of automated weaponry change space combat?

Background and Goal I'm building a science fiction setting for a game that will have a lot of space combat focused around fighters. One thing I wanted to avoid was letting the setting drift towards ...
3
votes
12answers
2k views

Humanity is an FTL capable empire with great technological capabilities, what will our fighting machine or machines be like?

First I love the whole desperate infantry squad against a sea of trouble premise of so many stories. Even when some of them is set in the future. There is the rub. How on earth would I have a setting ...
4
votes
3answers
213 views

Composite Organic Armor

So, to lead, I've been developing a sort of faction that is entirely organically based that is capable of producing things such as advanced infrastructure like city level energy production, complex ...
2
votes
0answers
61 views

Realistic clone tank design for long-term post-mortem effects [closed]

Let's say you have your stereotypical sci-fi/video game clone tanks: people, in translucent goo (preferably glowing), grown to physical maturity in a glass container. Let's presume the tanks are ...
6
votes
4answers
312 views

Yellow sky with a breathable atmosphere?

The main character in my novel-in-progress is an alien whose home planet has a yellow sky. This planet orbits Altair (an A7 main-sequence star) and has a nitrogen-oxygen atmosphere similar to Earth's, ...
5
votes
5answers
378 views

Plausibility of Materials Lasting Millions of Years

I've seen a lot of articles and even questions here which talk about how long modern human artifacts will last. Mostly it seems to boil down to modern materials not having great longevity, though ...
11
votes
8answers
2k views

'Speed Bumps' as a Lethal Trap in Space Ship Combat

Deceleration as a weapon In a very interesting question about the scale of distance useful for a space opera game, I was inspired to consider the use of deceleration as a weapon. Considering humans ...
6
votes
1answer
109 views

Interstellar Space Near Future Betelguese Supernova

I recently saw some new estimates about when Betelguese will go supernova and it got me thinking since a worldbuilding project I'm in the early stages of could plausibly see it happen given the ...
2
votes
3answers
90 views

How to alter geological landforms on Earth

I want to use Earth for my setting, but also want to alter its continents and tectonic plates to look more fantastical than before. If an ancient alien terraforming fleet arrived and was able to ...
10
votes
10answers
890 views

Proper combat distance scaling for a sci-fi space opera tabletop setting

I'm making a completely homemade tabletop system with the intent of generating a hardish scifi, more sim-like experience for my friends. I've settled on no FTL and all space battles would be ...
29
votes
27answers
4k views

Why would sentient weapons be created?

So, I am working on a space opera setting. I really like the fantasy trope of sentient weapons or weapons that choose their wielder and transplant that into a sci-fi setting. My concept is that the ...
19
votes
5answers
4k views

Would it be possible to hide a spaceship for 30 000 years in a cave on Earth?

I'm writing a novel, and my protagonists are going to find a small spaceship that was placed in Europe during the arrival of the first humans in Europe. The Neanderthals would have still been there. ...
6
votes
4answers
1k views

What is a material that might be missing on a planet that the inhabitants of said planet need to go pick up on a gas giant nearby?

I have this Earth-like planet that is running short on materials, like minerals and gasses, and they have a big spaceship that is able to gather materials from a gas giant that orbits the same star ...
6
votes
16answers
6k views

I want my aliens to arrive at the edges of the solar system. They would arrive in a week. What do I need to have?

Space is 3d. Which means complications when we introduce FTL travel and in imagining the fleets and their position. But in my story, FTL is easier beyond the reach of the sun and after the last planet,...
14
votes
4answers
2k views

Would pressurized vehicles operating near the surface of Venus float?

So the setting is that we are several hundred years in the future, and scientists are sending humans to the surface of Venus in reinforced vessels similar to submarines or whatnot. We will assume that ...
0
votes
2answers
88 views

Universal Time | Time in Space seen by Intelligent Life Forms or Aliens [duplicate]

How would several intelligent life forms, aka. Aliens or Foreigners to us, who roam around space (in something I would call space ships) and have never seen or heard about earth interpret time? How ...
7
votes
1answer
322 views

Can a Mad Science Experiment Involving Men and Horses REALLY Create a Realistic Centaur?

Lately, I've been looking at Google images of "centaur skeleton", but they don't look that convincing to me. The problem is whether or not the last human lumbar vertebra would be the right ...
15
votes
4answers
2k views

Population Size of a Colony With a Large Gender Disparity

This is my first post on this site, so please bear with me. I am working on a series of stories about an interstellar colony with a large gender disparity. Namely the initial population was made up of ...
10
votes
13answers
5k views

Is a space station using a Dyson sphere like structure to power itself invincible? [closed]

Let's assume we have this super advanced civilization that actually goes around making Dyson spheres around stars. The purpose of this is to capture all the energy of the star and be a hub of the ...
13
votes
12answers
4k views

What is the optimum shape for a space warship which primarily uses rockets for offensive weaponry?

So, I was thinking about this question which I asked a while back, and it occurred to me that the "natural predator" of such ships would be missile and fighter carriers which unleash swarms ...
3
votes
7answers
783 views

Firearms and weapons in space

Lets assume the setting is multiple civilizations all around the universe, each owning at least one of a planet, a huge mother space ship or a space fleet. If for some reason there would be a conflict ...
4
votes
1answer
104 views

Fusion With Non-Isotopic Hydrogen?

It's my understanding that the sort of fusion that goes on in the sun takes four hydrogen (H-1, one proton and one electron) atoms and crunches them down into a single helium atom. Not knowing a ...
1
vote
4answers
346 views

How would an efficient University look like in the future?

The setting: About 150 years from now. Brain Computer Interface (BCI) has completely changed society. Seamless integration with computers and AI makes enhanced people capable of complex, parallel ...
3
votes
3answers
266 views

A sensible universe for a fictional story [closed]

I wouldn't call this scientifically accurate, but would like some opinion on sensibility of the idea. As part of a story about two time travelling engineers, they discover that their own universe ...
19
votes
19answers
5k views

How could primitive people destroy or severely damage a very large very modern building?

In my story, there are a large group of technologically backwards Earthmen who wish to remove a futuristic Martian arcology from their ancestral land. The Earthmen do not have any 20th or 21st century ...
0
votes
2answers
120 views

Can time travel result in another person? [closed]

One of my characters goes back in time (and to an alternate realm) by sixteen years, then returns to her original realm a year before she left (so after spending fifteen years in the alternate world), ...
9
votes
4answers
420 views

How many people can my Spire world support?

Alright so I have this big colony ship/artificial world and I need to figure out what kind of population it can support. I’ll cut right to the chase and give you the details. Length: About 1,000,000 ...
1
vote
4answers
607 views

What would be possible if my character was able to manipulate electricity [closed]

I am outlining and plotting a novel about someone who is able to manipulate electricity (as in electric currents, charges, etc). Sadly, physics isn't my forte so I was wondering what exactly is ...
1
vote
1answer
134 views

Which professions/backgrounds can make better slaves for an improved alien society in case of a selective termination? [closed]

Let's say that an advanced alien society somehow annexed or conquered earth for its natural resources. Then they discovered that these "human"s consume so much resources and they need to be ...
-4
votes
1answer
108 views

Doxxing users on the Dark Web [closed]

I'm not a hacker, but one idea has intrigued me. Imagine the story is set in a contemporary version of our modern world, and the main character is a brilliant hacker who wants to create a virus that ...

1
3 4
5
6 7
37