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7
votes
4answers
1k views

Is it possible to have a solar system where none of the celestial bodies seem to be rotating or orbiting?

Individual tidally locked planets or moons are a relatively common topic, but I was wondering if it would at all be possible for an entire solar system's celestial bodies to orbit and rotate at just ...
-1
votes
5answers
279 views

Maintaining an advantage in a world of infinite acceleration capabilites

Technical Suppose that someone showed up very few years ago and started selling out spaceships ships are capable of arbitrarily high acceleration, the drive is integral to the hull and moves the whole ...
5
votes
3answers
145 views

How Do I Make Trappist-1g Habitable (in a fantasy setting)

This question is not about terraforming! (or atleast not technological terraforming) I am writing a fantasy story set in the (real) Trappist-1 system. I am trying to faithfully keep most of the ...
5
votes
4answers
324 views

What would be the color of a CO2 atmosphere

So I want to make a planet with an atmosphere made of 99% CO2 1% N2 It also has a pressure of 1 bar. Its star is like our sun. There is not that much dust. It's 27.5 A.U away from it's star. What ...
6
votes
7answers
1k views

Why can't you keep casting Wish [closed]

In my D&D game, the spell wish doesn't work after you cast it a certain amount of times. The relevant portion of the wish description (emphasis mine): Finally, there is a 33 percent chance that ...
2
votes
2answers
149 views

Sprinting Downforce on Titan

Since Titan has high air pressure, but low gravity, could settlers there wear wings or other methods of downforce (passive or active) on their suits/clothes to keep themselves grounded while they run? ...
3
votes
4answers
162 views

Warm blooded Desert Dwellers

How could a race of warm blooded, hair covered humanoids maintain their body temperature of 43.7’c when their arid homeworld has temperatures ranging from 32’c in winter and to 78’c in summer, and ...
1
vote
0answers
43 views

Fire-monster Pouch Development

Kapowch is a kangaroo-like creature infused with Fire magic, which naturally leads to certain problems with its pouch, no matter how you slice it. First of all, even if it’s open like a real kangaroo’...
3
votes
1answer
80 views

How to write character who was the ability to manipulate diamagnetism?

I am trying to adapt a character who has Diamagnetic Manipulation abilities (https://powerlisting.fandom.com/wiki/Diamagnetism_Manipulation) into my own universe. Although I know superpowers do not ...
1
vote
1answer
59 views

Rubberizing's Effects on Giant Caterpillars

Giant caterpillars vs. Plops = Giant caterpillars > Plop It appears, since giant caterpillars lack bones and possibly rigid parts in general, they could serve as a viable Plop predator despite ...
2
votes
2answers
96 views

Would it be possible to accelerate the evolution process of select animals? [closed]

I am talking about the advanced species in the Great Apes family. By accelerating the evolutionary process, I mean to gift apes with greater intelligence. We would be using science, possibly some ...
3
votes
7answers
325 views

How would being able to resurrect dead soldiers affect warfare?

How would being able to resurrect dead soldiers affect warfare? The setting is the same as last question Line/Square formations with automatic rifles and sentient vehicles?. The thing is in the ...
-4
votes
1answer
99 views

Would it be possible to genetically engineer wings onto humans? [closed]

This is entirely hypothetical, but there is human gene editing equipment. It is hypothetical because the wings would not work, unless they were ultra-light and the wingspan was 60 feet.
6
votes
4answers
2k views

How would an osmium core affect life on a planet?

I seek to have one of the setting's worlds be smaller than earth but is also conveniently earth-like in its gravity, 1g at the surface. A possible solution to this has been to have its core be made of ...
5
votes
2answers
137 views

Obtaining laser

I did some research on electric dragons and found a post asking about it, in it there was a answer that mentioned an apparently chemical laser used to ionize the air and allow the electric discharge ...
-2
votes
0answers
10 views

How much force should be applied in a car to allow it to climb a wall? [migrated]

I know this is a weird subject to talk about, but don't mind too much about specific numbers. Let's just say that this vehicle has a mass of your choice (a normal car, for example) and has a turbine ...
0
votes
0answers
76 views

Is this convergence? [closed]

If there are points A and B in space, If an object travels a distance from A to any other point between A and B, does that count as converging? The reason why I asked this question is to clear a doubt ...
3
votes
5answers
533 views

How would a rebel group best utilise ww2 era planes/equipment against a modern state/dictatorship? [closed]

For context: Modern United States, UK and several other countries have been taken over by a totalitarian dictatorship plotting to revive a Lovecraftian god(This happens later, does not affect this ...
1
vote
3answers
135 views

What sort of reward system can we create for society that pays in money? [closed]

If you look at current markets you see that people create and sell products or they sell services or labor. If we allow ourselves the freedom to imagine the future what other ways besides doing ...
4
votes
1answer
147 views

Little Mermaids: Will They Survive?

No, this question is not about creating a subspecies of mermaid that all happen to look and act like a certain Disney princess. Not at all, in fact. You see, mermaids in my setting are capable of ...
20
votes
5answers
3k views

Feasibility of Giant Butterflies as Predators

I have asked multiple questions about giant caterpillars, now it's time to account for their evolutions. Sure, giant flowers could and probably would exist in Alendyias; an Engorger dying in a flowery ...
40
votes
11answers
10k views

An engineering enigma: the useless "wings" behind giant robots. What is their TRUE purpose?

An engineering enigma: the useless "wings" behind giant robots. "Bold design choice." "What? I like anime." "Worst-case scenario, we'll end up with the world's most ...
9
votes
7answers
2k views

If Christopher Columbus hadn't reached the Americas, when would they have been (re)discovered, with wide, international trade networks? [closed]

To my understanding, Christopher Columbus's plan to sail around the world and reach Asia was widely considered a doomed journey (not because most educated people thought the earth was flat, but ...
4
votes
3answers
169 views

Line/Square formations with automatic rifles and sentient vehicles?

Is there any reasons a line/pike-square formation would be used with soldiers equipped with automatic rifles with bayonets? The army also has sentient vehicles that can transport troops and fight on ...
3
votes
4answers
120 views

What would make a species of sentient starfish rationally and ethically choose between sexual and asexual reproduction? [closed]

Starfishs or seastars have sexes( they are either male or female) but they can reproduce both sexually and asexually. The latter is possible using fission or fragmentation. In this planet there is a ...
5
votes
2answers
94 views

Could the dna/gene stealing abilities of bdelloid rotifers be feasibly scaled up for larger creatures?

To summarize the bdelloid rotifers, they have genes in their dna that have been incorporated from other kinds of organisms which have also given them functional/useful adaptations. I want to design a ...
3
votes
7answers
1k views

Maintaining an advantage in a world of reactionless drives [closed]

Suppose, because I can't be bothered explaining the exact setting, that someone showed up tomorrow and started handing out spaceships with reactionless drives to anyone who asked for them. These ships ...
6
votes
4answers
139 views

Flash Flooding on Titan?

From what I’ve researched, Saturn’s moon Titan is believed to have a methane cycle throughout its seasons. Particularly, during the winter season, methane rain falls, filling Titan’s lakes and rivers. ...
18
votes
9answers
5k views

How would people detect a 1 year time jump between star systems?

Scenario: A wormhole is created between Sol (earth) and a planet in Alpha Centauri. Travel through the wormhole appears instantaneous from the travelers perspective. However, the wormhole has a one ...
2
votes
4answers
707 views

Realistic combat AI [closed]

The idea of combat robots is simple, they are robotic soldiers that don't eat, don't sleep and don't rest, but they never touch the issue of the AI they employ. The AI of a combat robot must meet the ...
0
votes
1answer
82 views

Anatomically correct amphisbaena

Amphisbaena is a creature from greek mythology. It is a snake, with another head at the end of its tail. I have a world in which I'm adapting various dragons to be scientifically viable. I've already ...
2
votes
2answers
127 views

A car propelled by a turbine air jet has acceptable efficiency?

So, I know that there are vehicles that use gas turbines as their engines, but they are connected to the wheels. What I'm asking is that if a turbine with reasonable size (small enough to fit in a car ...
-2
votes
0answers
65 views

Electricity through space

Anything can be a conductor given the right circumstances, lighting is a good example of this, so when we eventually get a moon base or humans on Mars, could we transport electricity using space ...
3
votes
1answer
38 views

Can a creature who uses anguilliform swimming swim in an up and down motion like cetaceans?

I am working on a xenobiology biosphere project, and I have a clade of creatures who evolved in the wetlands. They are disconnected entirely from life on our world, although they follow the same ...
0
votes
1answer
101 views

Can the use of lightning weapons be considered a war-crime? [closed]

Note: Just assume that there is also a Geneva convetion in this scenario because it is basically our earth in a few years in the future. So, I just found of this news that the US had developed an ...
3
votes
1answer
160 views

Determining the Best Wild Anklebiter Predator

The natural sequel to Making a Predator For Wild Anklebiters, which was inconclusive. You see, Wild Anklebiters are chimeric monsters-being equal parts flower, worm, and leech-with a rather ...
0
votes
1answer
85 views

What kind of sounds would a creature from the void make? [closed]

For a place I call The Void, its a place filled in darkness with no elements on the galactic periodic table, what sounds would it have? Especially the entities in the Void called VoidSpawn being ...
1
vote
4answers
2k views

Is an almost entirely water-based planet stable enough to stay as a planet for long enough for complex life to form?

Imagine an earth mass that consists purely and entirely of water that orbits a star similar to ours at a similar orbital distance to Mars(or whatever distance would be sufficient for the planet to ...
2
votes
4answers
326 views

Werewolves change gradually according to the phases of the moon. What made people think they only change on the full moon? [closed]

The werewolves in my story change gradually, being fully human on the new moon and being fully wolf when the moon is at its fullest. They only lose their minds on the night of the full moon. If that ...
4
votes
2answers
96 views

What would a heterozygote advantage against rabies look like?

Some heterozygote advantages in humans are: People with sickle-cell trait are resistant to malaria, but people with sickle-cell disease tend to die young. Depending of the source we believe, people ...
-4
votes
1answer
126 views

PTSD from death by knife [closed]

Say you have someone who died due to their throat being cut with a knife. It was by someone they were familiar with, but not exactly a friend or someone they really trusted. They get resurrected with ...
4
votes
1answer
154 views

Where can lithium be found in the Solar System?

My question is pretty straightforward, beside earth, what celestial bodies could hold exploitable quantities of lithium-7 and lithium-6? I understand that lithium is a scarce element in our universe. ...
9
votes
3answers
2k views

Dam in the Mediterranean

I am looking to write a story where part of the Atlantropa project goes through. Now I know about all the issues with it: the soil is covered in salt and unusable, it raises sea level in other places, ...
2
votes
1answer
121 views

What kind of weathering on which kind of stones would produce fantasy style rock formations?

What kind of natural or artificial weathering would have to go on to produce fantasy-like formations, what kind of geography and geology would have to be going on? I'm talking about formations like a ...
0
votes
4answers
215 views

What weapon would this aircraft use against drones? [closed]

I need a weapon pod for anti-drone use to be mounted on a plane. The plane's performance is (roughly) equal to the Japanese Ki-10 biplane, but without all the extra combat bits attached (guns, ammo, ...
16
votes
11answers
4k views

Medieval airship nomads

In a medieval society, an ethnic group lives most of their lives aboard airships. These airships are rudimentary, perhaps holding only enough room for a single family. They consist of slender wooden ...
4
votes
1answer
67 views

What are the buoyancy capabilities of super-heated Helium?

In some questions here (and in other sites), when the subject of a floating spaceship is addressed, I always see someone suggesting super-heated Helium of Hydrogen. However, I can't find anywhere ...
1
vote
3answers
121 views

How big would a artificial island have to be to bring about massive economic and ecologic repercussions for the rest of the globe

If someone were to create an artificial island by digging into the mantle and using nuclear bombs to cause islands to form, then how big could an island have to be for the world to be in danger or for ...
1
vote
2answers
75 views

necrobotany and necromancy - bringing the dead back [closed]

in the story i'm writing, there are different types of energy that can do different, but related things. Green energy is the closest to earth magic (think control over plants, but it can also be ...
5
votes
7answers
2k views

How do I make a steam engine work - with next-to-zero hydrocarbons, or, for that matter, biomatter - to use as fuel?

Let's say that my colony ship crash-landed on an atmosphere-less planet. Sure, there might be sub-surface pockets that have evolved primitive life, but sulfur and phosphorous are at a premium in the ...

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