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.

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5
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3answers
58 views

How could one armor/defend against this hypothetical kinetic shell?

I know that this is an oddly specific question, but it was something I was wondering In my setting, lots of space navies field a hefty amount of kinetic weapons because energy weapons are highly power ...
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5answers
240 views

Powerful tail swipe with as little muscle as possible. How?

If you look at flying animals, they usually have small tails. For instance, giant pterosaurs. Now dragons tend to be portrayed with more devloped tails. For my dragons, their tails, and the bony spade ...
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How can a troglodytic society democratize braille literature?

Premise The surface of my world cannot support life. The inhabitants of my world sustain themselves off troglophauna and aquifers. I'm leaving the mechanics of where energy comes from in this shadow-...
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0answers
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Effects on World Climate without (Most of) northwest and central Europe

So I'm considering creating a fantasy setting heavily modelled on Earth with the exception that most of what we consider Northwest and Central Europe is replaced by sea. I decided to as a reference ...
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1answer
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What Would the Climate Be Like on this Extreme Alternate Earth?

In an alternate universe, Earth orbits not one sun, but two. As you can see, both stars are orange dwarves, each one only 40% as bright as our sun. All the same, this alternate Earth orbits from ...
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1answer
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Autonomous homonculi vs mass-produced homonculi, which one would be more restricted by the Geneva Convention?

I needed monsters for my story, but with each added "quirk", dragons became more and more like overgrown, but well-behaved, flying housecats with scales. And I also didn't want them to be &...
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2answers
173 views

What would be the ideal of beauty in a world of a completely female human species?

This is a very hard question, if well the future and sociocultural interactions are hard to predict and many times could be wrong, but with the enough antropologic investigation comparing historical ...
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2answers
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In This Picture, How Far Can One Binary Orbit the Other?

In an alternate Milky Way in an alternate universe, there is a cluster of stars so dense that nights are over 60 times brighter than our full moon. In that cluster is a solar system presented (albeit ...
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Evolution of sexual parasitism in a species with small and intelligent females but large and “brute” males?

So, I had this idea about a sapient alien specie paritally based on the reproduction of the schistosoma A flat worm specie in which the male is notorious bigger than the female, and this have a ...
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9answers
205 views

How could the sword be a viable weapon against modern technology, with the advantage of science-based superpowers?

The atmosphere in the Judging Hall was stretched so thin that it seemed like it would snap at the slightest blink of an eye. On one side of the hall sat the Master Judge and his guards, his hand ...
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3answers
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How can a civilization tell that their “Sun” is actually a black hole emitting hawking radiation?

Imagine a primordial black hole so heavy that it is a blackbody and there are many planets orbiting around it, there is a moon thriving with intelligent life orbiting a gas giant. I am wondering would ...
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2answers
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The best type of reconnaissance for modern dragons?

My dergs: About the size of a large draft horse, 12-meter wingspan, human intelligence, able to talk in human languages. Scales are very tough, but an armor-piercing round from an M2 Springfield bolt-...
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4answers
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Detecting an escaping Earth

Suppose that, some day, for reasons, the Earth is mysteriously accelerated prograde until it reaches escape velocity. It then starts a trajectory that will take it off of the solar system. It might ...
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5answers
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Would it ever be possible to “vaccinate” against feelings/ideas/beliefs?

If we think of some world views as viruses... Would it hypothetically be possible to create a vaccine for this or, in another way, make a person immune to these views? I'm thinking racism, xenophobia, ...
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0answers
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Orbital Warfare Maneuvers

So lately I’ve been re-rereading (again) some of the articles on Atomic Rockets and I was metaphorically struck by the idea of orbital combat as presented on the site. To summarize, it involves using ...
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2answers
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Difference between F type stars and our sun

I'm writing a science fiction series. I have an intelligent nation of reptilian people who live on an Earth-like planet orbiting an F-type star. This nation needs to bask in the sun. How will the ...
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3answers
111 views

How could death hold its value if resurrection is widely available?

Sadly, plain resurrection is much simpler and scientifically more plausible than traveling back in time. However, time travel has the intrinsic drawback of erasing the progress you've made after a ...
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1answer
51 views

How could hydrogen in a vacuum be removed/extracted?

What reactions or process could remove hydrogen from the vacuum without compromising it, then from there a way that animals could do it, the vacuum is in a rigid space, but hydrogen still seeps ...
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2answers
105 views

Effects of a Rapid Fire Nuclear Weapon on the Environment

One of the weapons I'm planning on having a character use in a sci-fi world is a rapid fire nuclear autocannon. While the strategic use of nuclear weapons is common on inter-galactic battlefields, an ...
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3answers
2k views

What happens to corpses left in a desert for many decades?

Consider a hot desert with temperatures between 30-40 degrees Celsius year round and 100 mm of precipitation annually. Suppose some corpses are placed on racks and predators are kept away. Sand is ...
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0answers
89 views

Would dragons be able to purr?

My dragons have a... "difficult" personality. They're very catlike. Sure, they're more like KrimsonRogue's cat (somewhere around chaotic good). But, if I want to make my dragons smug, blue-...
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2answers
133 views

How plausible are underwater trees?

In the process of developing an ocean world setting for my fiction, I have often pondered whether to give the sapient species of the world access to some form of wood or other resource from underwater ...
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1answer
41 views

How would Filter Feeding Fungal Forests affect the ocean ecosystems

So, I'm asking this on behalf of a seeded world project. There are no corals, sponges, kelp, or anemones in this world's oceans (although there are seagrasses); instead, all those roles are taken up ...
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2answers
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Which countries/organizations are most likely to ensure survival on a freezing Earth?

I am writing some fiction about a freezing Earth. My previous questions about it were mostly about the physics aspects of it. Now after watching the Snowpiercer movie, I'd like to explore a human ...
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1answer
74 views

Effects of a Super High Velocity Cannon on a Planet

In the 23rd century, humans are at war with a technologically advanced alien species. Humans discovered a method of faster than light travel during early stages of this war when an alien capital ship ...
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1answer
54 views

Feedback/help on planetary density?

I’m at a bit of a wall here. I have numbers for mass, radius, and gravity for my planet (Neogaea), but the density is escaping me. Mass: 1.31 earth masses Radius: 1.027 earth radius Gravity: 1.25 ...
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2answers
75 views

Tidal Effect of Twin Moons

In order to account for an immense amount of technological and cultural disparity, I have been attempting to figure out ways that the world in a setting could be extremely hostile to travel. The idea ...
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1answer
74 views

What technology would a probe need in order to become a self-sustaining colony-constructor?

In a science fiction setting, in the not-too-distant future, people want to send robotic probes out into space - both to explore and to set up boostrap space colonies. They need to be designed to be ...
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2answers
166 views

How Would a Six-Winged Angel Fly?

This image by the DeviantArtist "jerica128" presents what I believe to be the best demonstration of angel anatomy: Source for the image above That said, they are actually not the only ...
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3answers
95 views

How would airbubbles/moonpools be achieved in a deepwater marine mammal civilisation?

I am developing an ocean world for a story involving marine mammals, and the biggest issue I cannot settle on is whether to have deep or shallow civilisations. The main concern is that their ...
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2answers
2k views

What would make a plant's leaves razor-sharp?

Imagine a field of plants that when walked through cuts human skin. Unlike a Stinging Nettle, the leaves would have to have razor-like edges, without the trichome hairs. The leaf edges should cause a ...
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3answers
149 views

How do you make scientific progress happen in the presence of superpowers?

With superpowers, people would lose the desire to build machinery as superpowers can perform most purposes, and people would be less interested in studying the environment than wielding superpowers (...
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2answers
192 views

How Precisely Can a Space Cannon be Targeted?

If I have spaceships that are firing some variety of cannon at each other - MAC, laser, particle cannon, doesn't really matter the type - at extreme range, then even if the gun itself were somehow ...
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2answers
606 views

How would a black lightning storm work?

"If you shine a low-pressure sodium lamp on a yellow sodium flame, the flame will be black." I shamelessly stole the above text from somewhere but it whetted my curiosity. I am wondering if ...
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5answers
240 views

How to incorporate scientific development into fantasy/sci-fi?

In the Avatar the Last Airbender manga/comic and Avatar The Legend of Korra, scientific advancement took over industrial work replacing bending. Eventually nuclear weapons would be found (as well as ...
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7answers
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How to get blue sand

I want to have a blue furred species native to a desert in the world I'm building, so the obvious way to have that is to have the sand of that desert be blue so they are camouflaged. I could just say ...
5
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1answer
118 views

Could a world exist without autotrophs, but have heterotrophs?

I was watching Biblaridian’s biosphere videos and he said it is believed that heterotrophs evolved before autotrophs. This gave me a cool idea: what if a (my) world had heterotrophs, but no autotrophs?...
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0answers
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Are these ocean currents realistic for a planet that rotates 16 times slower than Earth?

Ocean Current Map: The straight red lines are 60* North and South, and the straight blue lines are 30* North and South. The curved blue lines with an arrow represent cold currents, while the curved ...
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2answers
76 views

Could a human sized creature with a skeletal structure similar to a gibbon's be bipedal?

Would a creature that's 180 - 210 cm tall walk and run comfortably upright for long distances if they have shorter legs than humans, no lordosis and arms (though shorter than a gibbon's) whose wrists ...
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8answers
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Replacing the core of a planet with a sun, could that be theoretically possible?

We have a sun that is like ours, does not matter I think because of scaling. That sun is completely encased in large rock formations like that of a planet. Basically if you replace the core of a ...
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2answers
537 views

Would Venusian Sunlight Be Too Much for Earth Plants?

This is Chris Wayans's map of a terraformed Venus: While there have been questions in this Stack Exchange on how to make Venus more livable for us humans, one question stands glaringly absent, and ...
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2answers
210 views

How far would a goblin-powered plane go?

There are a few flying questions lately and this got me thinking. Someone suggested that a centaur might power a plane via a bicycle. I don't think this would work out, since the centaur would be very ...
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3answers
168 views

Applying this kind of physical magic to walk on air

I have a magic system with very specific physical rules (hence why the question is science-based), but I need help working out a specific scenario. Also feel free to suggest better terminology where ...
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3answers
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I need a systematic way to consider all crucial factors when building different kinds of near-future cities

I'm crafting the worlds and cultures of my own Alien societies and a near-future human world (near-future Earth), it's the first time I've attempted this in detail. Everything I've found so far about ...
8
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5answers
253 views

How fast would I have to flap my arms in order to fly?

Suppose I am a super-being. From the outside I look and act exactly like an ordinary human. My flexibility of limbs is the same as that of a human so I can't shape-change or bend my arms unnaturally. ...
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3answers
76 views

Science-based WMD styled weapons? [closed]

I've been thinking about possible super weapons for a little while now, but I'm not really sure of any ideas that could fit into a semi-realistic setting. One idea I had was firing out a slug of ...
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7answers
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What would martial arts for dragons look like?

So, since my dragons have a lot of limitations that are needed for flight, I thought it was to make them some strengths. Two that still remain are their intelligence and long life, which can result in ...
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2answers
149 views

How would mermaids protect themselves against electricity?

There are some underwater electric beasties, in the sea. And, in a fantasy world... nature is always worse. My thoughts and ponderances So, let's say the mermaids do have rubber, for simplicity. Great....
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2answers
164 views

Can a rogue planet have a habitable surface due to geothermal heat?

I am making a rogue planet. Right now it is a super-earth with a lot of radioactive materials in its core. It rotates very quickly as well. However, it needs to be habitable. And not just the deep ...
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1answer
73 views

I need help with the scale for an island

Okay, so I have an island where the story will be based in and around. It's actually more of an atoll, similar to Bikini or Kwajalein in the Marshalls, with the island parts being in somewhat of a ...

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