Questions tagged [science-fiction]

Allows for fanciful, creative or imaginative solutions based on or rationalized by Real World science, but not necessary limited by Real World science. Entirely magical solutions must use the magic tag instead. This tag should not be used with the science-based, hard-science, or internal-consistency tags. This tag should never be the only tag on a question, because this tag frames how a question should be answered, not the topic.

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2 answers
130 views

Biological Electroreception/Electrogenesis (Electrolocation) In Air Medium

So i got inspired by the electrolocation senses of some water animals that can be passive like sharks that only detect the electric signature of other animals, to active like electric eels that ...
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53 votes
8 answers
11k views

The Earth is teleported into interstellar space for 5 minutes. What happens?

Humanity has just developed a star drive and begun sending their first probes, and have now discovered an unstoppable force of doom approaching to destroy the solar system. Their only option is to ...
0 votes
3 answers
53 views

Could 2 versions of a person from alternate universes be different ages? [closed]

Pretty much what the title says. I have 2 characters who are technically the same person, just from different universes, but for multiple reasons they have to be different ages. Can this make sense? ...
26 votes
22 answers
5k views

Ideas for a human convenient, long term date system spanning many trillions of years

I have reached the stage in my latest science fiction epic (in form if not quality!) whereby I need to start solidifying the date system and setting the history of the universe concretely. The date ...
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0 votes
2 answers
82 views

Biology — A group of humans that magically became aquatic [closed]

In my setting, some humans hundreds of years ago became aquatic due to magic (the same setting has vampires pretty much like in the original Dracula novel, who descend from one guy who became a ...
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1 vote
3 answers
306 views

Given that an ocean did not touch the ground, how would the way waves function change? [closed]

The Premise An earth-like world (gravity, 1 moon, distance from star) Oceans do not touch the ground (ignoring the how for this premise, but for consistency we'll say it's floating atop 1 km of air) ...
10 votes
4 answers
3k views

Is there a way to generate energy using a planet's angular momentum?

The most common answer is "tidal forces" "wind" since all of these are by-products of the planet's Coriolis force. Or there are rnd into generating energy from the earth's magnetic ...
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4 votes
2 answers
89 views

Could a photosynthetic plant form a symbosis with fish in an oceanic environement to get nutriets from the sea bed?

On Earth their are thousands of animals with symbiosis with plants such as honey bees and flowers. However for this question I'm focusing on a very specific kind the one that leaf-cutter ants have ...
12 votes
2 answers
2k views

A person has composite memories from countless pasts - how would you detect this with modern medical equipment?

So in this scenario our character is just a regular man in his 30's. Multiverses exist, and our character exists in countless other universes, each variant of himself having different life experiences....
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3 votes
3 answers
960 views

How plausible would a planet-sized theme park be? [closed]

In my scifi lore, there is a giant theme park built for larpers, cosplayers, and furries(not antromorphic animal species, but the people who dress up and like the style), their target audiences. The ...
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4 votes
2 answers
201 views

What life (magical and non-magical) would survive and thrive in an air pocket under 1000 meters of water? [closed]

Background and Setup --This is a fantasy world, where something to the tune of thousands of years have passed since a magical calamity occurred, giving rise to the creation of a magic dust (Vyxium), ...
12 votes
10 answers
2k views

Planetary Rule: How possible?

It is an established science-fiction trope, especially in something like Star Wars, that entire planets will be run by a single government. When trying to worldbuild, I began to think about how one ...
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2 votes
1 answer
122 views

Is it (somehow) realistic to give space dwelling population some noticeable physical changes that would make them different from regular humans? [closed]

My biggest points are lower muscle mass because of the lower g (gravity) in an artificial habitat and fragile, less dense bones. They would also get sunburns quicker, because most of the time they are ...
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4 votes
4 answers
214 views

Where should I put the bridge of a warship? [closed]

I am currently designing spaceship for my world. I want to use good ol' physics, so no handwavium here. I assume that my crew will remain in weightlessness during maneuvers. Since there is no up and ...
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1 vote
2 answers
191 views

Ideal height for space marine super soldier? [closed]

Let’s say you want to create a powerful genetically engineered group of space marines. The main changes we’ll be making are, in order: increased musculature increased bone strength Increased eyesight ...
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-1 votes
1 answer
68 views

Would the Clarktech form of magic overlap with X-Men style Mutants, if both coexisting in the same world? [closed]

"any advanced technology is indistinguishable from magic" Arthur Clarke. In many fictional worlds, magic can be explained by science. You can call this form of magic Alchemy, Thaumaturgy, ...
3 votes
1 answer
104 views

How much territory would a 200-450 kilogram solitary Carnivorous Dinosaur need to survive in a jungle, forest, woodland or similar environment?

I’ll give you all some context here. In, the story that I’m writing, two characters are investigating a scientist who is responsible for unethical practices or is not properly following known ...
6 votes
12 answers
4k views

What would be the best way to kill an Albertosaurus with only stone age weapons?

https://en.m.wikipedia.org/wiki/Albertosaurus Going to have my male human protagonist kill an Albertosaurus with stone age weapons. However as this is in self defense I was just curious to know how ...
7 votes
6 answers
627 views

How do you differentiate a time machine from a disintegration chamber? [closed]

In settings where time travel is possible but only backwards in time (Terminator), how did the scientists that developed the machine know that the subjects sent back in time actually were time ...
8 votes
8 answers
4k views

What is the largest animal that a person could kill with stone age weaponry 66 MYA? What is the biggest one they can kill in self defense?

So basically two people are transported back in time to 66 MYA ago with just their clothes on their back, a month of rations and the time machine that sent them back. They're going to spend the next ...
1 vote
3 answers
118 views

would this Lenz law based inertial dampener work?

Basically this "Inertial Dampening" systems works like a magnet falling though a cooper pipe https://youtu.be/5BeFoz3Ypo4 But replace the falling magnet with a crew capsule surrounded by a ...
1 vote
1 answer
141 views

Possibility of Crystal Breath Weapons [closed]

Dragons are well known for their breath weapons in fiction, and there are four main types of breath weapons in my world that I am trying to make more scientifically accurate. I am focusing mainly on ...
2 votes
1 answer
324 views

Could a quantum computer be integrated into a biological medium?

I'm working on an idea for an AI in a short story and have been circling around the idea of a biologically-integrated quantum computer — think, diamond qubits suspended in a biological medium (goop?) ...
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3 votes
3 answers
1k views

Could my world have a month long eclipse

So there have been question similar to this, but the answer that I have found isn't quite what I want, because they are specific to that world they are from. This world is an earth-like planet, with a ...
3 votes
4 answers
846 views

Monomolecular wire bolo rounds: how to make it work?

In the near-future story I'm developing, I've tried to incorporate all kind of somewhat-credible technology into weapons and gadgets. I had the idea of what's basically two shotguns fused together, ...
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2 votes
2 answers
94 views

Possible alternatives to nebulas as a celestial smokescreen

I've been trying to find celestial phenomena that could act like nebula often do in Sci fi shows, i.e., A phenomena where a ship can hide from other ships A phenomena which is difficult but possible ...
-1 votes
4 answers
229 views

Simulation Computing Loophole? [closed]

The story i'm working on is set on a near future where brain-computer interface has evolved enough for people to control virtual bodies in real time and feel every physical stimuli from the virtual ...
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2 votes
3 answers
145 views

Hearing effects of shifted time perception.(Bullet-Time) [closed]

Edit: It has come to my attention that "Critical Flicker Frequency" only applies to vision, but the perception of time of animals is measured by this method and i didn't know how to phrase ...
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3 votes
2 answers
155 views

Self-Sharpening Monomolecular Edge

In my research while trying to incorporate monomolecular edged blades in my story, i saw that a monomolecular edge would get instantly dull after cutting anything, but then i saw these depleted ...
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13 votes
8 answers
3k views

How could humans repeatedly lose their latest memories

My story requires a team of human explorers on a far-away planet to repeatedly lose their latest few months worth of memories through some natural phenomenon (or perhaps equipment malfunction) while ...
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17 votes
10 answers
5k views

Would it be plausible for a laser weapon to pass through glass and retain its destructive power?

So, the characters in my story are trapped in an abandoned city in a glass dome at the bottom of the ocean that has suffered damage from some sort of bombardment. I'm currently trying to work out the ...
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8 votes
5 answers
2k views

Disease that rapidly kills and replaces cells - severity of symptoms

I have conceptualized a disease that rapidly kills cells in the human body and replaces them with modified copies over a period of 7-10 days. After this time, every cell in the infected person's body ...
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-1 votes
1 answer
96 views

A device to negate time dilation believability [closed]

In this setting spacecraft are able to approach the speed of light and are equipped with a device to negate the time dilation, this allows things to go horribly wrong if this device fails plot wise. ...
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3 votes
5 answers
358 views

War and Conflict within a O'Neil Cylinder

I have an idea for a story I'm brewing but I want to know if such things are possible or even plausible. The basic idea is that the O'neil cylinder was created after a failed attempt of colonizing a ...
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8 votes
8 answers
2k views

Idea for a more "efficient" brain?

So if my incredibly basic understanding of how brains across animal species work is that the brain is compartmentalised into a bunch of different sectors that handle things like sight, language, fight ...
1 vote
1 answer
136 views

If the USA was hit by a bombardment of nuclear warheads, what would the landscape look like?

In my world, technology that could alter a living creature's biology (later called Lazarus Tech) became incredibly popular in many places, until the overuse of the technology cause countless millions ...
5 votes
4 answers
562 views

Colour of the sky on a moon with an thin artificial atmosphere

On a moon with an thin artificial atmosphere (think force field filled with Earth-like atmosphere), would the sky be a blue colour or have a blue tinge, or would the thinner layer of atmosphere (about ...
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6 votes
15 answers
3k views

Is there any practical reason to keep a primitive civilization on an artificial habitat

A planet with an early civilization (Middle age like) is doomed to be destroyed by an unstoppable event. So an advanced civilization decides to do a planetary evacuation to save the species and their ...
1 vote
1 answer
81 views

Human precursors design powered armor for invertebratre Cephalopod slaves that have lungs too, up-right or octopus-form?

https://ibb.co/Fqmb4tH. I couldn't use the upload option as its saying server issue. That is the picture of my cephalopod. I'm trying to come up with an idea for power armor for my octopus species to ...
2 votes
2 answers
127 views

Electric Arc Discharge Plasma and other forms of Plasma tech as a weapon

I'm making a weapon for my character which looks like a sword or is used as such but is segmented to give it whip like flexibility (restricted movement for safety) when needed. Each segment has metal ...
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-2 votes
1 answer
166 views

Performance Comparison of Some Common Sci-Fi Propulsion Systems

Want to share some performance comparison I've done recently. How does a torch ship compare in interplanetary travel to a reactionless drive? How does a reactionless drive compare to a boost drive? ...
28 votes
26 answers
6k views

Why are my combat spacecraft crewed?

In my universe, humans are pretty good with AI and have some experience in space combat, as nations fought for resources. Regarding the world, humanity remains in the solar system and is in space ...
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3 votes
3 answers
201 views

A potential way to use "space mines" to guard a moon or small planet

Space mines have a glaring problem which is the fact that space is really big, But I have devised a space mine which could be used to defend a moon or small planet. My space mine would be Casaba-...
10 votes
7 answers
2k views

What would an alien spaceship need to have to be undetectable to us with our current technology

This alien spacecraft would be orbiting around earth at 300-400 km, it has a similar size to the ISS, and it has to be undetectable with our current technology. I assume that it would prevent emitting ...
3 votes
3 answers
729 views

Any tips for finding other practical uses of tech in your world [closed]

In sci fi, writers tend to make a new technology to solve a problem, for example artificial gravity for spacecraft via gravitons. But seldom do they use the full application of gravity generation (...
1 vote
2 answers
139 views

Using Diamagnetic repulsion to help negate the affects of weightlessness

I had an idea of a chamber that an astronaut would use when they would sleep that would allow their body to experience a gravity-like force to negate the negative effects of weightlessness, (Bone or ...
4 votes
0 answers
89 views

Phantom Field Creation (Negative Kinetic Energy Scalar Field) [closed]

I'd like to create a scenario a few decades to a century in the future where an experiment (attempting to create a wormhole to Luna on Earth via quantum foam mining) gone wrong causes a phantom scalar ...
6 votes
3 answers
191 views

Could black holes be used as a particle accelerator

I was originally was thinking of using the Jets emitted by black holes to create antimatter, however those might not fit the setting I want, due to the fact they are don't seem to occur commonly in ...
2 votes
3 answers
214 views

Would it make sense for an Interstellar government to use the half life of common radioactive elements as a measure of time? and to make calendars? [closed]

For example, can we use the half life of Polonium or Uranium to measure time and produce something similar to a calendar?
12 votes
2 answers
3k views

How much force would be required to destroy the Earth

say someone punched the ground (Earth) with infinite strength, how much force would they require to destroy/ vaporise the earth? Or an easier question how much force would someone need to induce $3.2 \...

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