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Questions tagged [science-based]

For questions that require answers based on hard science, not magic or pseudo-science, but do not require scientific citations. Contrast with the hard-science and reality-check tags. Do not use this tag as the only tag on a question.

8
votes
1answer
137 views

Minimum tech level to invent core memory

Magnetic core memory was a critical innovation in the development of computers. Per https://en.wikipedia.org/wiki/Magnetic-core_memory it was the most advanced form of memory from about the mid-...
1
vote
1answer
99 views

How would someone who could break the laws of motion apply it? [closed]

I'm working on a "Science Fantasy" story and in my story I'm trying to approach magic from a different angle. I understand this is a fictional work but I'd like to get my facts right nonetheless. The ...
4
votes
2answers
585 views

Can my heraldic dragons fly?

Heraldic Dragons Heraldic dragons are the creations of a mad god, called Anon, designed after the classical six-limbed ones. Measurements: Head+neck length: 180 cm Body length: 180 cm Height at ...
11
votes
3answers
819 views

Gastric acid as a weapon

The dragons in my fantasy world spit fluid from their mouths when threatened, which upon contact causes a burning sensation. I could have this liquid be standard venom, like modified saliva, but I ...
7
votes
3answers
297 views

Scientifically Correct Hanahaki Disease?

For those who don't know, Hanahaki Disease is a fictional disease related to love. It can happen when someone has unrequited romantic feelings for someone, so flowers start growing inside them. The ...
38
votes
22answers
9k views

What would be the ideal power source for a cybernetic eye?

After nearly a decade of development and public prototypes, the Mizaru company is ready to unveil the cybereye. A fully cybernetic eye that provides its user/host with high definition vision, enhanced ...
-4
votes
2answers
109 views

Chemically induced fear [closed]

Secret police in my world want to interrogate subjects but they're very resistant to all techniques.So they want to induce fear in subjects.How they could achive this?
6
votes
1answer
1k views

Can rocky hills similar to the Scottish highlands be located next to a bog?

I've written about these rocky hills with short grass, gravel, shrubs, and big boulders. At the bottom of one of the hills is a big bog. Basically I've designed some buildings to be sticking out of ...
4
votes
1answer
138 views

Can a possible humanoid species capable of changing their sex in a crisis be the dominant species of an entire planet like us?

I had an idea of a concept a while ago. If a planet that for some reason or another had only one giant continent like Pangea, but bigger, for more distinct habitats and giant lakes assuring ...
5
votes
1answer
143 views

Is it possible to create rage virus from 28 Days Later?

In 28 Days Later the Rage Virus causes uncontrollable aggression and changes in personality. Is such virus even possible in principle? I'm not talking about rabies but rather about a genetically ...
10
votes
3answers
199 views

What thickness of atmosphere and strength of magnetosphere would I need for a planet to have a deadly daytime and a hospitable nighttime?

What thickness of atmosphere, and strength of magnetosphere, would I need for a planet to have a deadly daytime and a hospitable nighttime? I'm wanting a planet in which humans can survive on as long ...
8
votes
6answers
451 views

Would it be possible to rearrange a dragon's flight muscle to somewhat circumvent the square-cube law?

The square-cube law holds true only for objects that are similar. In evolution, you can't make big leaps forward, but since most fantasy worlds are created by gods or people who think they're gods, I'...
7
votes
2answers
225 views

Stellaser Part I: Trial by stellar Fire or The best design out of three for a solar powered 5 Petawatt laser?

I´m building a hard-sifi setting and want to use Stellasers (abbreviation for stellar laser) to provide thrust and power to interstellar vessels. This part one is only concerned with the construction ...
0
votes
3answers
134 views

How would two fireballs act when they collide? [duplicate]

A magical fireball is just a large mass of high energy, or rather a chaotic state if excited particles. Normal flames require a fuel that will have kinetic energy when flying in a direction, resulting ...
18
votes
14answers
2k views

Would an alien lifeform be able to achieve space travel if lacking in vision?

Think of this alien life form as something resembling earth bats, placed in a planet with Earth-like conditions. Micro-bats have small and poorly developed eyes. Similarly, this alien species is ...
8
votes
2answers
170 views

Ball lightning projection as an alternative to plasma weaponry

Plasma weaponry is a staple of science fiction, but is often objected to on the basis that it expands too readily. There's no way to effectively deliver it to a target without spending a lot of effort ...
14
votes
6answers
350 views

Flight paths in orbit around Ceres?

In my sci-fi world, mankind has begun colonization of the large asteroid Ceres. It's a mining hub, with a lot of cargo vessels transporting things in and out. Hydrogen peroxide fuel is cheap and ...
23
votes
11answers
4k views

How can I define good in a religion that claims no moral authority?

Faith is defined as a belief in God based on spiritual apprehension rather than proof. Religion and science can be seen to oppose one another due to conflicts between people of those practices. In my ...
32
votes
26answers
5k views

Keeping a retro style to sci-fi spaceships?

In my sci-fi world, mankind has begun colonization of the large asteroid Ceres. There are several established towns on the surface, but most of the population live underground in icy/rocky caves. The ...
2
votes
5answers
221 views

Can multiple similar planets share the same orbit without interfering with each other too much?

Let's go with an example. Three planets, all of roughly earth's size, follow the same orbit around a star with a mass of roughly 1 sun. Basically, all three planets are almost identical to Earth, ...
42
votes
15answers
9k views

For what reasons would an animal species NOT cross a *horizontal* land bridge?

In my worldbuilding project, 2 continents located on roughly the same latitude are connected by a land bridge. Both sides of the bridge are surrounded by a temperate grassland, and the lack of seasons ...
6
votes
3answers
250 views

Anatomically Correct Huldra

Huldra are forest creatures from Scandinavian folklore, best known for their seductive natures. They are frequently depicted as beautiful women, with the additional traits of a cow-like tail and ...
12
votes
6answers
3k views

Lethal sonic weapons

Sonic weapons are frequently used by military circles as non-lethal irritants to deter opponents. My question is; could a naturally evolved organism kill, or at least incapacitate, small prey using ...
9
votes
7answers
421 views

What could justify an animal photosynthesis?

Photosynthesis does not provide enough energy to allow animal activities on its own (see this post for example). But can we think of a species using photosynthesis as a secondary energy source? Here ...
6
votes
4answers
499 views

Uplifted animals have parts of their “brain” in various locations of their body. Where?

Looking at the case of Mike, I realized decentralizing the brain might not be infeasible. The idea is if Horus, the brown falcon, doesn't have enough room in his skull, then why not move various ...
17
votes
6answers
3k views

Doomsday-clock for my fantasy planet

I want the surface of my fantasy planet to be made hostile every few thousand years for long enough to make every species go extinct that breeds on land. The easiest explanation seems to be other ...
4
votes
1answer
113 views

Need some help in creating silicon life in cold temperatures

I am a new person to this but I have been looking at similar questions about silicon life. I'm currently trying to create silicon-based lifeforms on a planet with a surface temperature of about, -36....
4
votes
2answers
147 views

Would direct use of kinetic energy be able to simulate a solid object?

For context, imagine that a human being has reality warping powers based on knowledge. Basically, if you know how something works and what manipulations have to happen for a certain result to occur, ...
2
votes
3answers
128 views

What advantages would a “night watch” of Androids have compared to just the ship's onboard systems?

The industrial company Astor since 2124 has equipped all "Long Hauls" (voyages beyond 3 months) with cryopofs in accordance with a new company bylaw and cost cutting measure (less resources the crew ...
0
votes
1answer
309 views

How could an uplifted falcon's brain work?

In JJBA: Stardust Crusaders, there was a two-parter with a falcon stand-user, called Pet Shop, as the antagonist. The character kinda intrigued me, so I decided to steal it while Araki wasn't watching....
15
votes
4answers
813 views

Dragon forelimb placement

Most dragons (before Skyrim and GoT) had six limbs in total, four legs and a pair of wings. The question is how would a dragon's forelimbs be placed? It's obvious they have good terrestrial ...
0
votes
2answers
118 views

What would our food taste like to a far-out alien civilization? [closed]

In my world, aliens who have been able to create wormhole tech and visit earth to immerse themselves in the culture here. they split into groups and visit the largest cities (NY, London, Paris, ...
11
votes
3answers
417 views

Mutually beneficial digestive system symbiotes

On an Earth-like planet, an intelligent species evolved in symbiosis with another species that lives in their digestive system and act as the microbial gut flora in humans do. What implementations of ...
6
votes
3answers
1k views

Submarine propulsion using evaporation

In a post-post-apocalyptic world with adequately schizophrenic tech, a tinkerer decides to build a submarine engine around a lump of radium, or some other reliable source of heat. But instead of using ...
11
votes
5answers
3k views

Could gravitational lensing be used to protect a spaceship from a laser?

Suppose Ship A is being targeted by Ship B, which intends to use a laser weapon in an attempt to destroy Ship A. Ship A has special technology that allows it to alter gravity (mainly used for ...
9
votes
2answers
3k views

Is it possible to create light that imparts a greater proportion of its energy as momentum rather than heat?

This is yet another question concerning lasers as employed by sorcerers in a particular fantasy setting, but this one pertains to the momentum that photons possess and whether it's possible to ...
9
votes
2answers
161 views

How to blow up water and fly through the wake

I want to achieve the following. Jet + secret base underwater + blow up water with bomb to gain entry to tunnel at bottom of the sea, see image: Say that the depth is 1000m, then Based on calculation ...
4
votes
3answers
174 views

What would a lethal laser attack by a sorcerer look like?

In a magic system that allowed the manipulation of energy by sorcerers, what would a bystander observe during such an attack? Some details are relevant: As I understand it, lasers are visible due to ...
4
votes
1answer
100 views

Could an entirely (or mostly) hydraulic muscular system work in terrestrial vertebrates?

In Invertebrates, Muscular Hydrostat, which is a form of biological hydraulic, is used for locomotion. On Earth, (as far as I'm aware) no system exists where hydraulics perform in conjunction with a ...
14
votes
12answers
3k views

Little known, relatively unlikely, but scientifically plausible, apocalyptic (or near apocalyptic) events [closed]

We know the common tropes for an apocalyptic event: meteor/asteroid hits earth; crazy infectious virus/bacteria; AI takes over; we nuke ourselves; climate change; hostile aliens. But what are some ...
9
votes
3answers
376 views

Can the Meissner effect explain very large floating structures?

James Cameron's Avatar featured floating mountains which stayed aloft due to the Meissner effect; they contained large quantities of the room-temperature superconductor unobtainium, which, due to ...
21
votes
10answers
6k views

Assassin's bullet with mercury

This is something I have been wondering: if an assassin wanted to kill their target with a bullet from a sniper rifle, can they dip it in liquid mercury so even if the bullet itself doesn't kill them, ...
4
votes
3answers
504 views

Can mass be shunted off into hyperspace, but the matter remains?

My question is this: can excess mass be bled off into hyperspace (the large and compact extra dimensions, not the Star Wars-esque swirling vortex), yet the matter remains in our universe? Is mass too ...
6
votes
3answers
317 views

Which edge shape is better to cut things with for a chain sword type/style?

To help you get the idea of what I mean, here is an example of the edge. Imagine the edge can move like a chain sword or chain saw, so don't take it too literally. Don't consider the entire sword ...
30
votes
17answers
7k views

How could indestructible materials be used in power generation?

Background: In this scenario assume technology is initially equal to our own, but a method is discovered to render material indestructible. The affected material is treated as requiring infinite or ...
9
votes
5answers
2k views

Is it possible to map the firing of neurons in the human brain so as to stimulate artificial memories in someone else?

My question is based on the following excerpt from an article I read recently: Since the early neurological work of Karl Lashley and Wilder Penfield in the 1950s and 1960s, it has become clear that ...
8
votes
7answers
270 views

How could a pair of twins be born with different abilities? [closed]

The demon king Sparda had an affair with a mortal woman. This union produced a set of twins named Dante and Virgil. However, a peculiarity occurred between their forming. The one called Dante was born ...
5
votes
2answers
161 views

Creating a scientifically semi-valid super-soldier, addendum: Metabolism

A while back Demigan had a running series of posts about various aspects biological enhancement for the purpose of designing super-soldiers with an element of (pseudo) science behind them. You can ...
4
votes
3answers
228 views

need help building a convincing Airship steam engine room [closed]

Building a world with airships that are powered by steam engines. Big boiler, water tank, lots of coal. Enormous engine room. Propellers, masts with huge sails. There are steam-powered automatons in ...
20
votes
2answers
4k views

A hang glider, sudden unexpected lift to 25,000 feet altitude, what could do this?

This is the third in a series of 5 (at this point) questions. It's not relevant to this question, but for anyone who's curious this was the first, this the second. Conditions for this question are: ...