Questions tagged [science-fiction]

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

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3
votes
4answers
67 views

Biological Features Necessary for a Humanoid to Have a Much Higher Rate of Reproduction?

So for this question there’s a Mad Scientist/Dark Lord that wants to engineer a race that can out breed mankind and carry him to victory. He has access to sufficiently advanced genetic engineering/...
4
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3answers
118 views

New universal units [closed]

I'm working on a series and attempting to create a more universal set of units. For this post, I will simply ask this: Is it feasible to redefine the meter to be the distance light travels in 1 second ...
1
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5answers
137 views

How bright and lit up could cities be in the future?

Technology will obviously make lamps much brighter and with wholly new designs and functions like self-illuminating walls, surfaces and glowing objects. Genetic engineering could also create trees and ...
22
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11answers
6k views

How might my futuristic interstellar civilisation have missed a Dyson swarm on their doorstep?

It's the future. The setting is about as "hard-ish sci-fi" as it is possible to be, with the one big exception of a viable FTL engine. Humans have began spreading out into the galaxy, colonising ...
4
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3answers
187 views

How to explain a planet with visible cosmos at daytime?

So I'm working on a fictional planet which would experience a daytime sky similar to this. This particular picture is from the movie Valerian: City of a Thousand Planets. Fictional alien atmospheres ...
-1
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0answers
63 views

How would the world react to a theme park about Demons? [closed]

This can be considered a revised version of one of my earlier questions, that being the Heaven and Hell one. Before I can ask my question however, I have to give a little info, which my original ...
1
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1answer
99 views

How much DNA half-siblings do share? [closed]

Title is pretty self explanatory, but how much DNA would half-siblings share if they had the same mother ? I'm asking for a very specific reason. I'm writing a book in which some boxes can only be ...
4
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0answers
53 views

How would a Jupiter sized planet impact humanity? [closed]

So while worldbuilding I was pondering the effects of such a large planet on humans and their development alongside magic, technology, society, etc. So the planet is like Earth in water/land ratio, ...
7
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7answers
657 views

Food ingredients in the medieval ages compared to their modern counterparts?

One of my characters (who comes from Earth) wants to open a restaurant in a fantasy world. This world is currently in its medieval era. The restaurant would serve all sorts of modern food; deep fried,...
6
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3answers
73 views

How would the weather and organisms and flora be affected on an Earth-like planet with floating continents?

I am currently writing a script for my graphic novel. My novel is in the fantasy genre and I use energy-based hard magic (that is energy-based magic that has its sort of "science" and rules). So I don'...
7
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13answers
5k views

Effectiveness of a glowing hot tungsten sword against medieval era knights?

A blade made out of tungsten alloy that’s also electrically heated to 3000C. The shape and sharpness is similar to a katana. The user carries a battery pack that provides enough energy for the sword ...
2
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4answers
113 views

Perfect centrifuge crew quarters for a interstellar spaceship?

I want to design a realistic interstellar spaceship that uses centrifugal force for only the crew quarters. But while looking up for designs I found the most common ones are the torus or ring design. ...
3
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3answers
122 views

Would it ever be theoretically possible for future humans to prevent the sun from increasing in luminosity to the point of killing all life?

I am currently brainstorming a hard (like the hardest possible; everything that occurs in the story must at least be theoretically possible) sci-fi story which will take place far in the future. I don'...
1
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2answers
155 views

How to evacuate an entire planet?

Setting: An Earth-like planet except all the continents are joined together like Pangea. The locals are in the medieval era and have the ability to use magic. Magic can level buildings at best, ...
6
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2answers
192 views

Possibility of creating a gun that can permanently paralyze a person?

I'm wondering whether it's possible to create a gun that shoots some kind of shock wave to permanently damage nerve cells and instantly immobilize a hostile target but leave them alive. Would such a ...
9
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9answers
5k views

Which is easier to develop: a piston prop engine or a jet engine?

I’m writing a novel where people from our universe move to another. The other universe is a fantasy one with medieval technology. These people have the help of an advanced AI that contains the ...
2
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2answers
44 views

Plausibility and possible applications of an antimatter-catalyzed nuclear pulse propulsion system? [closed]

How far are we today from using the technique of using microgram quantities of antimatter (say, antihydrogen) to catalyze a reaction in a sub-critical mass of fissile material for the purpose of ...
3
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7answers
197 views

Rights of AIs in far future

We've just started 36th century, humanity is colonizing stars right and left. Technology is well developed, you know, typical Sci-Fi stuff. In 23rd century we finally were able to create true AI. But ...
1
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3answers
206 views

How long or how hard is it to develop a medieval fantasy into a modern or even sci-fi civilization.?

Our universe dies due to entropy, so what do humans do best??? COLONIZE! A near sentient AI found a way to cross realities and because our universe was dead, everyone took the chance. They (about ...
20
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20answers
8k views

Why NOT use surveillance cameras in future world

I'm GMing RPG game based on Stars Without Numbers, but its happening on my personal world. It's in the 36th century of our universe and humans are colonizing planets within the galaxy. In the far ...
4
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9answers
601 views

Balancing psychics powers [closed]

I'm GMing RPG game based on Stars Without Numbers, but its happening on my personal world. It's 36th century of our universe and humans are colonizing planets through galaxy. I have big concerns ...
4
votes
1answer
91 views

What would life (some of it humanoid) be like on a planet with high amounts of silver?

The planet I’m developing has iron in low supply but a high concentration of silver. The planet is habitable for humans and for story reasons the sentient race must be humanoid. Is it feasible for ...
1
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0answers
49 views

Blind man working for a secret organisation gets a super power(Slow Motion vision) [closed]

So there is a blind man (age~25) who secretly works for an organisation. Suddenly one day, the blind man gets a super power i.e HOUSE FLY vision. He can see in slo mo(7 times slower than humans) for ...
8
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9answers
2k views

When (if at all) would an arm cannon be practical?

Having a weapon attached to your arm that restricts the use of your hand is a common design trope in sci-fi-themed video games, such as Mega Man or Metroid. They even appear in the Marvel movies ...
2
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3answers
179 views

Could a world exist where Heaven functions and Hell dosen’t? [closed]

I’m thinking of a kinda weird story idea. Basically, think of Jurrasic Park, but with demons instead of dinosaurs. Basically, this is a universe where the Biblical Heaven and Hell existed, but almost ...
5
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6answers
208 views

How to allow a cylindrical habitat (O'Neill or McKendree) to radiate heat to space?

Background I am trying to find a design for a cylindrical habitat that would allow the enclosed cylinder to radiate heat out to space as does the Earth without using mirrors and windows. Problem In ...
8
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10answers
2k views

How would a Grey Goo robot compute given that it has no fixed form?

This is something that confuses me with amorphous characters, monsters, robots etc... How do they compute when their particles don't have a fixed form? They are in a sense modular robots only taken to ...
3
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0answers
34 views

Could human skin be home to chromataphores, like a chamelion's or an octopus's [duplicate]

Could human skin be home to chromataphores, like a chamelion's? I'm assuming a technology advanced enough to create designer organisms, including designer humans. In other words, tech that will be ...
4
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2answers
75 views

Possible compositions of a rogue binary system?

I am attempting to construct a world that is primarily lit by light filtered through and reflected off of a crystalline moon so that, at its brightest, the planet receives about the same amount of ...
4
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3answers
232 views

Basket of goods in SF

I'm creating a SF-cyberpunk universe. The action is set somewhere in 3600, 1600 years after today. Humanity has colonized several hundred star systems around Milky Way. Even thought there was no ...
33
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19answers
8k views

What would be a legit sounding medical term for Spontaneous Human Combustion? [closed]

I am writing a sci fi novel, which is set 100 years into the future (2120). In it, one of my characters is a scientist and investigates a case of SHC where a victim was seen with flames coming from ...
1
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1answer
60 views

How would it be possible for a kaiju size carnivore dinosaur to survive with no eyes?

So I'm almost done with my draft of a story I'm writing. And I just got a random question popped into my head. Is it possible for Zues (the kaiju size dino) to survive? I already got a little bit of ...
6
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3answers
186 views

Could a species of marine mammal evolve from humans?

I want to write a science fantasy novel about humans evolving into five new species. The five races are: the Groses and Grosettes (they are my Ogres) (their name comes from the french word gros/grosse ...
6
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2answers
268 views

Primer (2004) - Does a time traveler's cell phone ring if both he and his other self exist at the same time?

In the movie Primer (2004), there are two main characters who travel back 24 hours in time using their time machine. When they arrive, both they and their past selves exist in this same town at the ...
24
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18answers
5k views

What are some plausible factors and societal changes that could result in a modern civil war in the United States?

I am working on a short story that will take place somewhere twenty and fifty years from now and I want there to be a civil war occurring in the United States. I have seen a lot of speculative fiction ...
4
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3answers
124 views

What kind of material can act as storage, float and withstand firepower?

I actually rediscovered an old story I wrote five years ago and there was this supposedly synthetic material that can float, be programmed to be directed where to be delivered and can carry luggage (I'...
3
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2answers
164 views

Xenomorph-like creature but with a Base instead of Acid as blood

I'm looking to build a horror type sci-fi game based on the Alien franchise. My question comes in trying to differentiate my alien from the Xenomorphs. I want hurting it with a melee weapon to be ...
6
votes
1answer
110 views

Fictional Space Plague - Pandemic - Does this timeline make sense?

For a book that I'm working on I am plotting out various points in time to make sure my plot is following accordingly. I apologize in advance for the lengthy post. It is a fungus-like infection that ...
5
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3answers
102 views

Science Fiction Fungal Disease - Spore Germination Through Coughing

So I'm working on this new novel with a fungal-like disease that is alien in nature and I have a question pertaining to spore germination. Some background - the disease is fungal-like, but not ...
26
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15answers
8k views

Justification of the trope that mining tools are tougher than military equipments

It seems to be a recurring idea in science fiction that some industrial tools, especially mining tools, are extremely sturdy and reliable to the point that in certain combat situations where ...
0
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1answer
152 views

Could there be something like the Higgs field which gives particles their energy in a similar way to how the Higgs boson gives particles their mass?

First of all, in no way do I have advanced knowledge of particle physics, quantum mechanics, or any other necessary scientific concept for a full understanding of this question. Secondly, this is ...
27
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30answers
6k views

Plausible explanations as to why an advanced sci-fi species can't reproduce?

Basically, I have this story I'm trying to write in which there are an advanced space-faring species of precursors (very original, I know), which have been scattered throughout the cosmos as their ...
1
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1answer
79 views

How massive can a structure get on the inside of a Mckendree cylinder?

Background A McKendree cylinder is a rotating cylindrical space habitat comparable to the more well known O'Neill model. It was proposed by NASA engineer Thomas McKendree in 2000 as an update of O'...
3
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1answer
68 views

what are the signs and effects of two realities combined into one reality

I have posted a similar question where I asked how can two realities mix into one reality in which I received many helpful comments. I realise I should've expanded on the details I posted, so I will ...
2
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1answer
132 views

how can two realities mix into one reality

so I am a humanities student with little knowledge of physics or any science but I want to create a Dungeons and Dragons campaign that I will also use in a novel I'm writing. In it, my campaign's ...
9
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7answers
1k views

How could consciousness have emerged without life?

I am pondering on a work whose main theme is 'consciousness is fundamentally at odds with life and how it works'. Consciousness, sentience, self-awareness etc. values the individual, the self, and the ...
19
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13answers
3k views

Communicating the idea of danger to an unknown alien civilization

An alien automatic "beacon" tries to warn us about some imminent danger. It does so with launching a succession of large "veils" in front of their star so we can detect them via the transit method. ...
10
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7answers
3k views

How would we comunicate with Aliens if we meet them face-to-face? [duplicate]

Let's say that in the near future we come across an alien civilization not much technologically evolved from ours and we decided to send some people to communicate with them. How could we possibly ...
1
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0answers
46 views

Communication Across Planes of Existence [closed]

In a system where there are multiple planes of existence (the center one being ours), I want my human (mostly - not important for this though) main characters to interact with forces from the other ...
1
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3answers
175 views

In a Sci-Fi Novel with Multiple Planes of Existence, How Would You Travel from One Plane to Another?

In this world I am trying to create, as of now, I have tube-like things called Gateways that basically connect four separate planes of existence to one central one (think of a cross, with the cross ...

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