All Questions

6
votes
4answers
670 views

What kind of event could destroy a major part of the infrastructure but leave the rest intact?

I have a certain vision for a post-apocalyptic cyberpunk world in which civilization itself is collapsed, but technology and structures are still existant. 98% of human population is wiped out by a ...
6
votes
1answer
1k views

Can we actually “blow up” the sea?

Reading questions of How much TNT needed to blow up Mount Everest and the Moon - and especially the comments below it, I have to ask it: Can we blow up the sea? Detonating atomic bomb undersea may ...
4
votes
2answers
382 views

Consequences of democratic reform

Let us suppose that a state is transitioning to a democracy from an autocracy. We have an unicameral legislature, where the members do not have a single vote each, instead they vote with a number of ...
39
votes
15answers
9k views

Is a jet dragon possible?

Are there any known laws of nature, which don't allow the existence of an animal with following characteristics? Can fly to the altitudes of modern airliners (around 10 000 meters or 32808 ft). One ...
23
votes
8answers
5k views

Could a Mars colony use asteroids as weapons against the earth?

If a future Mars colony declared war on the Earth, would asteroid manipulation be a feasible option as an effective weapon against the Earth from a Mars colony? How would this be accomplished? Are ...
1
vote
2answers
10k views

How much TNT do you need to blow up the moon? [closed]

How much TNT do you need to blow up the moon if you place it exactly in the middle? Just think of the explosion -- that there's no air in space doesn't matter! What do you think is it possible and ...
10
votes
3answers
8k views

How much TNT do you need to blow up Mount Everest?

How much TNT do you need to blow up Mount Everest? Is this even possible and can mankind survive a huge explosion like this? Or would the whole world be covered with dust? And if you can survive ...
9
votes
2answers
654 views

How to build a world that can still be reused if the associated work to be published is rejected?

This is a suggested question by Monica Cellio, who I want to thank for providing. I hope I kept the idea in spirit as possible. How to build a world that can still be reused if the associated work to ...
33
votes
17answers
5k views

What will our great-grandchildren play with? [closed]

Assuming for a second that our future won't be hijacked by shackle-breaking AIs, I'm planning a lighter segment in my story, which unfortunately for me involves children playing. Now you would ask, ...
19
votes
9answers
4k views

Can you use an AI to shackle (control) an AI?

Intro and Context (feel free to skip if TL;DR) This question does not come in isolation. It is intrinsically linked with several previous posts (Challenge of Control and Humans as Pets) that have ...
11
votes
6answers
2k views

The social implications of Life as currency

In my setting (which is roughly early-medieval in terms of technology), magic comes from the Life-energy of all living beings. There are several factors that affect how much of this energy each being ...
28
votes
10answers
2k views

How can I make a net beneficial genetic trait occur only in a small fraction of the population, sustained?

For a species I am working on, there is a specific genetic trait that I want to introduce into the population. The exact nature of either is not important for the purposes of this question, but the ...
0
votes
1answer
73 views

Help with understanding Afghanistan for fictional characters in an RPG [closed]

I wasn't too sure whether this belonged on Writing or Worldbuilding, but I figured this is a better fit. I'm currently doing some thinking for a modern-day RPG with dark supernatural themes, and I ...
9
votes
2answers
2k views

What tool can I use to draw a simple map of a fictional world?

I want to draw a map of a fictional world, which consists of two regions (countries), separated by mountains. Are there any tools which allow you to draw such maps with little effort?
2
votes
1answer
664 views

What does it mean for something to be 'knocked out of its orbit'?

The idea of knocking a satellite out of its orbit is common in fiction, but what does it actually mean.
5
votes
3answers
939 views

Could gas giants exist as a contact binary?

We've discovered stars that are contact binaries. This means that they orbit so close together that their photosphere reaches through their Roche lobes and links the two stars together. This started ...
20
votes
8answers
9k views

Where to Anchor My Space Elevator

Thanks to the recent discovery of handwavium ‡ filaments that can in principle be extruded to any length, we will be able to build space elevators sooner than most people would expect. The ...
4
votes
4answers
381 views

Is a spherical core and magnetic field possible in Cube world

Pretty self explanatory question...can the Cube Earth described at the link below support a spherical core and a magnetic field? How would a civilization that has been living on a "cube" ...
4
votes
4answers
725 views

What would a lunar calendar look like?

First see this great answer on considerations when making a calendar. Consider a human colony on our own moon. Let's assume that the colony is influenced by the Gregorian calendar. Let's suppose the ...
5
votes
7answers
4k views

How could a mummy come back to life?

What conditions would have to happen to re-animate a mummified person to come back to life with consciousness fully restored? What would the conditions of the mummification be and biological/technical ...
37
votes
20answers
9k views

What would be best way to re-melt Mars' mantle and core to revive its magnetosphere

Missing magnetosphere on Mars keeps popping up. Most likely caused by Mars core being cold, mantle not bubbly enough. Mars mantle is dormant, core does not move. What would be good way to get it ...
12
votes
8answers
1k views

How can a world with constantly-moving nomads form?

I've been working on a world for a game I'm making. The basis of the game is that you have to carefully manage your resources, and to keep moving. I'd like to build a world which fits that. These are ...
18
votes
5answers
4k views

How would a civilization that has been living on a “cube” Earth differ from one on a “spherical” Earth?

Another question based off of this one here. Let's say on a cube styled Earth-like planet, there was a similar race to humans. If the differences in the planets were minimal (besides, you know, the ...
1
vote
0answers
290 views

Might non-organic beings exist on an actual planet, as opposed to a moon? [closed]

In the past two years quite a few metallic objects have been observed leaving the dual planet system third from the Sun, such as that pictured here: As is well known, the smaller of the dual planet ...
2
votes
2answers
2k views

Are planets in the same altitude level? [closed]

Maybe this has been asked with another name, but I didn't find it. 1) Are planets in the same altitude level? 2) What defines altitude in the space (universe)? 3) Is the universe a XYZ plane? 4) ...
2
votes
4answers
801 views

What would happen if you attach 2 huge ion engines on the north and south side of planet earth?

I was wondering what would happen if you attach 2 Huge ion engines(I mean really really really huge) to planet earth. They should be attached on the north and south poles. Are 2 huge ion engines ...
2
votes
1answer
270 views

Volcano the size of Australia

What would happen a volcano the size of Australia were to erupt? How high on the extinction-list would it rank? Would it be above the asteroid that hit Earth and killed the dinosaurs? Which known ...
12
votes
7answers
2k views

An interplanetary coordinate system

On earth, we use a simple but effective coordinate system which determines position unambiguously on the surface (GPS achieving accuracy within 1 meter, which speaking as an engineer, is a remarkable ...
7
votes
5answers
2k views

How would todays (handheld) guns/ammo evolve in the far future?

If mankind in ~ 1000 years would still use chemical propellants for handheld weapons and their ammunition, how would they improve, given the following: There has been no dark age, but constant ...
10
votes
9answers
6k views

What size asteroid is needed to move the Sun?

What kind of asteroid does it take to hit our sun out of its current position, even by just 50 meters? And which size does it need to have in order for it to do so? Would it continue to travel ...
7
votes
2answers
281 views

Can two persons have a common consciousness?

Let us consider two persons who can feel what the other senses and know what the other thinks. Now do these two persons have a common or single consciousness?If so,will it do good, if we succeed to ...
7
votes
3answers
1k views

Can a planet with no tectonic plates technically exist and be habitable?

Going off of my other question here, I guessed that a cube planet could work out. BUT, would it be possible for the planet to exist and function as a (relatively) normal planet with life on it without ...
7
votes
8answers
2k views

How to make a world MAD

I have been reading about mutual assured destruction and deterrence theory on Wikipedia, and it got me thinking. What would it take for some of the countries in the world to actually destroy one ...
28
votes
11answers
20k views

Can a nonspherical planet exist and can it be habitable?

In both fiction and non-fiction worlds, that attempt to keep a sense of realism, planets are spherical. Is it possible for a planet to not be shaped like a sphere? If such a planet is possible ...
25
votes
12answers
9k views

Can planets die of old age

I was wondering if planets die after a certain amount of time, perhaps because of decay? If this is the case, how do they die and how long does it take? Do they implode? Explode or perhaps just fall ...
4
votes
8answers
1k views

How could a human learn to talk to “apes” (like from Planet of the Apes)?

The movie Planet of the Apes shows (and in the end explains away) humans talking with the apes in English. Assume we don't want that plot point but the setting is similar otherwise: The human is a ...
7
votes
2answers
776 views

How fast must a planet with 1.27g spin to allow for space elevators?

Obviously the greater a planet's gravity, the stronger the material of the space elevator's cable would need to be in order to support its own weight. However, doesn't greater rotation speed reduce an ...
6
votes
3answers
732 views

A species without pain

In my current setting, one of the main dominant species' is the Golem, former automatons made of assorted materials who gained sentience through some kind of life-giving explosion. As such, though ...
1
vote
1answer
517 views

How could you build a universe [closed]

EDIT : I made significant changes to the question which is by its nature open. Dark energy and its repulsive energy that expanded space at its origin was decisive in creating the playground for the ...
5
votes
3answers
264 views

Evolution into sentience

Given a world where a sentient species already populates, how would the population respond to another, unrelated species evolving into sentience? I think this can be effectively split into 3: Its ...
17
votes
10answers
4k views

What would a Martian calendar look like?

On Earth, the mostly used calendar is the Gregorian calendar. This calendar has many issues though, just to list some: It is not perennial. Each year starts on a different day of the week and ...
14
votes
4answers
4k views

How big would a “Ring World” have to be to orbit a black hole?

In many Science Fiction books and games, there are worlds or planet-like objects that are rings that orbit (or float around in space) (some examples being the Halo (from Halo) or the Ringworld (from ...
13
votes
6answers
3k views

Sapience Pulsar - Could Intelligence Come in Waves?

So imagine this scenario: Sapience (which I define as Human-like intelligence or better) is a relatively common occurence once a life-form is on a specific brain-arms-race path like Hominins have ...
17
votes
3answers
4k views

Are moons always the same colour?

When viewed from their planet, are moons always the same colour as ours? Or is there a variation? What other colours might be possible and what causes the differences in colour?
4
votes
3answers
2k views

How long would a planet take to recover from a large asteroid impact?

As part of my world's planetary history, an asteroid impact has delivered a sizable quantity of a previously unknown metal to the planet Earth. By sizable I mean a deposit large enough to sustain a ...
24
votes
9answers
27k views

Designing a map for a fictional city

I am in the process of beginning to write a fictional book. The book will be set on present day Earth however I want there to be a fictional city. In my head, I have decided the name, that there ...
4
votes
8answers
405 views

Arctic Airships, Part 2 - Navigation

This is the second question in my Arctic Airships series of questions. The first one is Arctic Airships, Part 1 - Generating Electricity. The setting is outlined in Part 1, but I'll rehash the ...
3
votes
8answers
825 views

Buying energy from the sun?

How could an organization force solar energy to be bought from them? Something like: A large structure (in space presumably) fully/partly blocks sunlight reaching Earth, so anyone here wishing to ...
8
votes
7answers
1k views

Does an expansionist, monotheistic religion require a central prophetic figure?

This question builds on these previous questions: What common structures and systems exist in global organized religions? How to explain the co-existence of peace and violence in religion I am ...
16
votes
3answers
4k views

How to fight an Eldritch Abomination

The Situation The fantasy world of Terrearth is once again threatened by the Shadow, a sentient, but completely unintelligible being composed of Absolute Evil, whose sole purpose is to destroy the ...

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