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Questions tagged [science-fiction]

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

0
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2answers
131 views

How to find earth's relative position anywhere in the galaxy without any markers or brute force exploration?

The idea is that is to find the ancient seat of power of humans which is earth, but no one knows where it is, there was no transmitter nor any markers that will give the relative position. The catch ...
7
votes
3answers
281 views

Feasability of plasma based garbage recycling into pure constituent elements

Is it possible to build a garbage recycler that turns residues into its constituent elements using plasma and accelerating it through a magnetic field? The technology level is around that of the ...
24
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21answers
5k views

Moving between levels in a gigantic tower-world?

In my sci-fi setting, people live in a gigantic metallic tower. For the sake of simplicity, let's say that each floor, or level, is a circle of around 200 km radius. Levels can be either empty, full ...
3
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3answers
355 views

If humans descended from raptors rather than apes [closed]

In my scifi novel, all intelligent life eventually reaches what we might consider a humanoid form. Likewise, life on other worlds generally follows a semi-parallel evolutionary path, meaning that life ...
1
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1answer
138 views

How to move up to one million Earth-mass planets? [closed]

Inspired by The One Million Earth Solar System. A civilization wants to create a solar system with a lot of earth-sized planets. How would they go about building it? Specifically, how would they move ...
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2answers
174 views

How to travel between planets on the same star system in Sci-Fi? [closed]

We know, that to travel to another star systems, we need to use FTL for traveling. But if you need to travel to another planet in the same star system, what type of travel should be used? Is it worth ...
2
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2answers
155 views

Combat on an alien world [closed]

(I'm copy pasting the opening from my other question here ) I'm currently working on a science fiction comic about humans marooned on an alien world for generations. My question is related to what ...
-1
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2answers
251 views

What could be the list of top 4 superpowers of Earth by 2050, according to current state? [closed]

I design an amateur (indie) sci-fi video game and wondering about which of current states or federations (like European Union) could be the top 4 superpowers by, say 2050. I care about technology and ...
120
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33answers
27k views

What vehicle would be the best one to start a >1000 km travel in a post apocalyptic zombie situation?

In order to define the best vehicle these inputs have to be taken into account: The zombies are the classical ones, "the walking dead" ones are a perfect example (definitely killed only by headshot, ...
0
votes
1answer
111 views

Possibility of a dyson sphere-esque structure with earth physics? [duplicate]

I have an idea for a DS-like world setting mostly set after the year 4200. The Earth was destroyed around 2500 and humanity moved from earth to an asteroid best and built a giant dyson sphere to live ...
1
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6answers
247 views

How might an economy in which multiple planets are involved function?

I created the above illustration to help convey my meaning, here is what everything means so that you can read it effectively: E = Earth V = Venus M = Mars The dots in the lower left hand corner ...
0
votes
3answers
201 views

How can I choose and combine multiple FTL systems in my Sci-Fi story? [closed]

So, I cannot decide which FTL method should I use. I can do it easy way - just call it "Jump" and that's all. But I something more. So I want to combine some methods, like jumps with stargates or ...
0
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2answers
160 views

Effect of 1.5g (Induced hypertension health effects?)

On this planet, gravity faces many fluctuations, but humans spend most of the time in 1.4-1.5 gravity. During these periods (usually lasting about 5-7 days) I was thinking I'd have them increase salt ...
0
votes
2answers
123 views

Could this work as an epidemic?

Essentially, I have a virus which temporarily turns people into psychopaths. This virus is being used by my antagonists to collapse a city. I will be using a lysogenic virus which is triggered by ...
3
votes
6answers
312 views

Would a “perfect” clone ever rebel against the original? [closed]

I'm creating this character that has the ability to replicate herself. Her power works like this: She can make a perfect copy of herself, which means that even her memories, thoughts and feelings are ...
0
votes
3answers
135 views

Effect of a positron beam on a human body

I am planning to make one of my characters in my novel have to have an ability to create positron beams as an offensive ability. I wonder what the effects on regular matter like a wall or a body of ...
4
votes
11answers
474 views

Is it possible for a character to live 17 million years?

I have a human character who had his mind transferred to a computer via a method where his brain was gradually replaced with digital parts to preserve his consciousness. (Depending on your view of the ...
6
votes
3answers
161 views

How to absorb matter and transform it to energy

I'm writing the last issue of my comic and I'm in trouble. My villain is a member of a cosmic cult that wants to absorb everything in the universe to create a conceptual/energy pangea out of space and ...
3
votes
6answers
441 views

How does a time travel paradox actually begins?

A while ago I was conceiving a story about a guy that actually creates a method for viable time travelling but gets stuck in a paradox after using the machine. The background story for this is that ...
8
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5answers
1k views

How could an alien mine exist under a planet's surface without humans detecting it from above?

Imagine a human observation and research facility being built on a planet in a distant solar system. How could an alien colony exist beneath the planet's surface, staying completely invisible to ...
1
vote
5answers
359 views

If aliens exist, do you think that they ever discovered/created their own Math?

Let's say that the aliens exist, do you think that they are smart enough to create their own Mathematics? Or even their own Sciences?
50
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20answers
10k views

Why would people still use pump-action guns in the future?

9 out of 10 action heroes agree: Repeating a pump-action shotgun looks and feels just plain awesome. But besides the rule of cool, why would we still use pump-action guns in a future scenario 100-200 ...
3
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4answers
354 views

VERY dense asteroid belt - possible?

I'm making a game which takes place in an asteroid field that is very dense - I'm talking close enough that one is able to jump between asteroids (provided you have some sort of additional thrust ...
-3
votes
1answer
203 views

What if light didn't decay by a square law, but instead by an INVERSE square? [closed]

I want to build a character that can control a light source's brightness in different ways. I want to see if instead of proportional to $1/r^2$, my light and darkness controlling character could make ...
1
vote
12answers
725 views

How to make a war to end all wars

My alien civilization is at a stage of technological development about 60 years ahead of us. A great war has broken out between the three world powers, with many smaller countries picking a side or ...
-1
votes
5answers
401 views

What would be the human population 200 years after 8 slaves escape?

Okay so in my setting, long story short, it starts off with a group of humans escaping an alien fleet they were enslaved by and conscripted into, and they find an earth-like planet that's smaller than ...
5
votes
6answers
318 views

How Could Zombies fit in a natural ecosystem?

In my world, zombies are quite common, and are considered a part of the wild life. Most of the usual flora and fauna are similar to those in IRL. I have three key questions, but I'll put the other ...
4
votes
4answers
139 views

Is fusion a viable power source for a bio-mechanical entity?

My alien civilization is entering the space age, and have reached the point where they will be sending ships hundreds of light-years away. Instead of generation ships, my civilization is building bio-...
3
votes
2answers
146 views

What would happen if a spaceship had a total power failure in regards to the crew? [closed]

On a spaceship with a total loss of power, say for instance, because of a system failure or something, what would happen to the people aboard? Would they become hypoxic? And would it get warmer or ...
12
votes
4answers
5k views

Theoretically, can time be controlled locally?

I mean can time be controlled within an area or even a small portion of space? I would like to mention time-bombs, which either reverse time in a radius of explosion or take time forward. Also ...
7
votes
11answers
4k views

Effects of stray bullets in space

A battle takes place on the outskirts of a colonized solar system between attacking and defending forces. Would any stray shots have a chance of hitting a ship or station closer to the center of the ...
13
votes
5answers
4k views

Would everything be miniature on a miniature Earth?

If there was a planet half the earth’s diameter, for which every other aspect of the earth was changed proportionally to keep the Earth’s perfect ratio intact (including having the perfect orbital ...
2
votes
3answers
295 views

Army composition in a “Dies the Fire” scenario

For those not familiar with these books: Dies the Fire* and the subsequent novels by S.M. Stirling are a fantasy companion to his Island in the sea of time series where Nantucket is sent back in time ...
1
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2answers
103 views

Is it possible to create an eternal ring of storm encircling a large portion of the earth?

I'm trying to investigate the theory behind this phenomena. I have found answers to creating eternal storms but nothing specific to my world building. I'm looking at a future earth where any known ...
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1answer
181 views

Spherical vs Circular(planar) wormholes; possibility? [closed]

I know that 'they' are theoretical and hypothetical, but please justify deep down to your understanding and I'll try to grab-up as much Origin of Problem: Thanks to the fantasy and fiction, there ...
4
votes
4answers
139 views

Could charged plasma be used as a working fluid to spin a magnetic turbine to generate electricity?

As the title suggests, this is a conceptual physics kinda question. What is the feasibility of using an electrically charged (as in not neutral) plasma as the working fluid in a turbine where the ...
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votes
1answer
118 views

Reason to stay on a doomed spaceship [closed]

For plot reasons, the captain must stay on the ship while his crew (including his wife) get in escape pods and leave. Unfortunately we haven't found a satisfying reason for this yet. What engine or ...
4
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3answers
227 views

What are the pros and cons of a client state based sci-fi empire?

I'm working on building a sci-fi world and I had an idea for how to cut down on the sheer amount of bureaucracy that a massive (say, 200 planets) empire would require. What if the central government ...
24
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10answers
6k views

How much time does Earth need to repel interstellar attack?

Highly inspired by How would we fare against an interstellar RKKV Attack? Lets repeat the setup of the original question: In this hypothetical scenario, in the present day, astronomers detect an ...
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3answers
279 views

I Just stole all of the money in the world. What happens now? [closed]

Using a magical computer virus, I’ve stolen all of the money in the world. All of the cash. All of the money from every checking, savings, retirement account. Every bitcoin, etherium, and doge ...
14
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5answers
1k views

How would we fare against an interstellar RKKV Attack? [closed]

In this hypothetical scenario, in the present day, astronomers detect an object entering the heliosphere, at a distance of roughly 90AU, from the direction of the Proxima Centauri system. Observations ...
5
votes
4answers
167 views

Creature Design Challenge- Extreme Gravity Flying Vertebrate

If you were tasking with creating a genetically engineered flying creature, capable of full powered flight on a (newly terraformed) planet with a surface gravity almost twice that of Earth's, do you ...
7
votes
5answers
2k views

How the world would change if matter replicator technology become possible?Would all goods and services become free? [closed]

How cities and the world would change if matter replicators become reality someday?Will money disappear and all goods and services become free?Would create new products become very easy even if they ...
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2answers
89 views

How to justify the need for human fighter pilots in a future human soceity [duplicate]

Humans have reached a level of technology beyond that which they had ever conceived of before. Their ships are capable of FTL travel using warp technology and they can make small hyperspace jumps ...
-1
votes
1answer
50 views

How Would A Carbosilicate Amorph move? [closed]

How would a creature similar to a carbosilicate amorph from the Schlock Mercenary webcomic move?
-1
votes
1answer
126 views

How weird, bizarre and surreal would a post singularity world appear from the view of an average person? [closed]

If AI get so smart and computers become so powerful that technologies that weren't dreamed even in sci fi become possible and part of everyday life and new kind of materials with surreal looks and ...
2
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2answers
256 views

Could near light speed ship dilate time severely enough to explore other stars with out breaking the light speed barrier?

At a constant 1G acceleration it takes a little less than a year to reach near light speed speeds. Time would dilate locally on the ship slowing time for them. Could the time dilation be pushed to ...
-1
votes
1answer
84 views

Would pollution become so bad in the future that it could change sky color and the planet Earth color? [closed]

I remember that when I was younger I saw sci-fi stuff and art showing air pollution to become so bad that the sky color changed to either redder and brighter or dimmer and dark grey.In other words, ...
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votes
3answers
94 views

How to save a person who has just fell down form an oceanic city? [closed]

So, my main characters, Bryan, Julia, and Logan have been visiting the city of Hydropolis, on the ocean planet of Aquatus V. The city overlooks the most beautiful sight under the sea, a 5,000 foot ...
11
votes
4answers
973 views

Is using mine shafts to control a building's temperature logical?

I'm writing a story where there is a large mining outpost built on a moon. This mining outpost is one large building holding around a thousand people, with an extensive system of passages and mines ...