Questions tagged [cities]

For questions about cities, their systems and evolution.

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9
votes
7answers
1k views

How big could a meteor crater be without causing significant secondary effects?

I need to wipe out a city. Not a huge one (I won't let them grow beyond a certain limit), but big enough to need to do some pretty serious damage. Let's say something similar in size to Pompeii. (yes.....
2
votes
2answers
101 views

How can an urban street gang develop into a nationwide criminal organization?

Inner city street gangs are often made up of minority groups in disadvantaged neighborhoods. Bloods, crips, latin kings, etc are just a fee of these groups that plague their communities and make their ...
7
votes
3answers
302 views

How bright were medieval cities at night, seen from the sky?

I'm a witch flying on my broomstick over 14th century England. I've got regular human eyes, and my cruising height is 500 metres or up to a kilometre, depending on the weather. Assuming it is a ...
3
votes
1answer
129 views

Speed of civilization change

Imagine one to three persons going back in time to a society like that of the Roman Kingdom (the period before the Republic), and they attempt to reform as well as modernize to an extent (up to the ...
4
votes
3answers
84 views

Considerations on settlements and urban development on a colonized exoplanet

When humans are colonizing a new planet, what are the considerations that need to be made for settlement placement and development? For this particular question, let's consider the following ...
2
votes
4answers
192 views

How can the vagrant mafia use pigeons to deliver messages?

My name is the Bowery King, the ultimate information broker in my City. My plan to take over the criminal underworld involves using homeless people as spies and informants. This network would keep ...
7
votes
6answers
304 views

Practical uses for a city on top of another city?

So I was playing Deus Ex and came across Hengsha, a city so large they built another city on top of it. This got my mind wondering about the practical uses of such a city. Let's assume that the ...
11
votes
6answers
2k views

How could a medieval fortress manage large groups of migrants and travelers?

The Red Keep was built thousands of years ago to defend against the invading hordes. The Red Keep itself is a fortress, the main wall of which blocks off the main pass through the mountains. Over the ...
4
votes
1answer
112 views

How would a civilization that evolved with access to buoyant building materials approach modern architecture? [closed]

In this world, there exists a type of material that has mass, but is incredibly buoyant in atmosphere. 1 kg of this material attached to 1 kg of any other material will be neutrally buoyant at sea ...
18
votes
10answers
4k views

Why do people prefer metropolitan areas, considering monsters and villains?

About fifty years ago, a number of people started to get really lucky. While normal humans when exposed to toxic waste, radiation etc. die, these guys actually managed to exploit previously unknown ...
5
votes
3answers
283 views

What jobs would people work in a frontier railroad town? [closed]

What would people do in 1860s railroad towns? In a place similar to frontier America, it seems towns are built around very clear purposes. A majority of people would follow the town specific ...
14
votes
9answers
7k views

How to hide an urban landmark?

Picture an alternative history Second World War Paris. The Third Reich must destroy the Notre-Dame de Paris, and the inhabitants must prevent this. The French do not have access to anti-air weaponry ...
4
votes
4answers
1k views

Colonizing Earth

After several centuries in exodus, humanity returns to earth to recolonize the planet. Naturally, their first question is the same as mine: Where are the best place(s) on earth to settle? Parameters:...
9
votes
3answers
489 views

Underwater city sanitation

In a vaguely Medieval setting with some limited magic, how would an underwater city handle sewage? Sanitation was one of the biggest limiting factors in the growth of human cities, and being under ...
15
votes
10answers
4k views

Multiple fireplaces in an apartment building?

I was working on a short story set in winter--a good time to contrast the cold, deprived life of the main character, reflecting his mental state, and the warmth and joy of other characters. There is ...
79
votes
17answers
6k views

Random body shuffle every night—can we still function?

Imagine a world where every time you wake up you wake up in a randomly selected body from among the bodies that were asleep at that time. There are some limits—the body should be in at most a roughly ...
9
votes
6answers
314 views

Trading Upstream

I've created a city at the joining point of two rivers, and I'm trying to determine the population ceiling. I'm just going for a general idea of relative size, and so far I've just been making towns ...
6
votes
4answers
487 views

Costs/Income from potential craftsmen [closed]

I run a D&D game in which my players have built an outpost and are now attempting to "staff" it with craftsmen: Blacksmiths, Farriers and the like. I want to give them a "choice" and let them ...
7
votes
3answers
926 views

Could a medieval fantasy world sustain itself by occupying important trade hubs and taxing trade?

The civilization I'm talking about is marked in pink (cities A and B). The trade routes are marked in yellow. Owning the city B (the entire island) means they only need to travel across two ...
0
votes
1answer
101 views

What are the economic effects of an electricity shutdown that lasts weeks in big city? [closed]

How this affects the economy of the big tech industries like factories and the media like radio stations and television? What are the effects that this brings in the life of normal people?
12
votes
4answers
2k views

Calculating City Size based on Population

Question: I'm trying to determine how large (geographically) my city will have to be to accommodate for 1 million people. I have a city that was basically formed by the gods to be fertile land with a ...
2
votes
4answers
217 views

What is a feasible long way transportation system with technology up to 1699?

Exposition One of the biggest Problems my Renaissance city with 2.7 million inhabitants is facing is how two get food from outside the city fast enough to the populous before being spoiled. The ...
8
votes
5answers
4k views

How to get rid of human waste without using bodies of water

A particularly religious people living in a land filled with rivers need to get rid of their excreta. They have disfavoured sewers and dumping waste on water because they venerate oceans and rivers, ...
0
votes
4answers
362 views

What would the effects be if all power grids connected to nuclear reactors abruptly suffered catastrophic failure?

To be more specific, I mean what if every wire, every power cable and transformer on the connected grids to the nuclear power plants all ruptured at once. The transformers literally exploding, the ...
1
vote
6answers
409 views

After evacuation to a new planet, how would a population switch from a barter system to a monetary system with banks?

Okay, context. There's a modern human sub-species (about 9,000) that needs to evacuate earth to avoid genocide from their human counter-parts. They have access to a portal to take them to a new viable ...
5
votes
5answers
323 views

How can a devil reincarnate himself on earth without being noticed?

The devil is alive, and he walks among you. Eons ago, there was a battle between a powerful deity and a devil from the nine realms of hell. The losing devil, to avoid being killed, broke himself ...
1
vote
4answers
138 views

Method of constructing pre-modern shanties

In my world the technology is around the mid 1800s or a bit earlier, and I have a big city with an empire and all sorts of colonialism problems that are minorly irrelevant to this question. What is ...
6
votes
3answers
238 views

What are the elements required for an enclosed prison-city?

I'm aware that variants of this question have been discussed before (such as "how to build a self-sustaining medieval city?"), but my question comes at the problem from a slightly different angle. ...
22
votes
21answers
11k views

How long can my small American city be without Internet access? [closed]

Let us say that I want a somewhat isolated farming city to lose Internet access for an extended period of time. The requirement is that all Internet access into the town have been cut off by some ...
7
votes
5answers
645 views

How could carbon nanotubes help me build supertall skyscrapers?

It is the near-future. Breakthrough, mass produced carbon nanotubes have been invented and are relatively cheap. These nanotubes have the properties that we would expect, and are manufactured in '...
4
votes
3answers
162 views

Ideal Place For Kenya Spaceport?

Its 20 seconds in the future. The space age is truly dawning this time. And I the CEO of a wealthy aerospace company, am looking for the perfect place to set up shop with my new spaceport. I've ...
5
votes
2answers
286 views

3-Level Roadway Engineering

I'm the city designer for a new city we're calling Morrowville. Having some of the worlds top minds, flying cars have been invented, but can only fly a few feet (2-4) from the ground and not everyone ...
9
votes
5answers
2k views

How possible would it be for a whole city (and smaller towns) to be built on water?

The world is flooded and some people have survived and managed to build small towns and even massive cities on the ocean that now covers the world. Is this possible hypothetically? How much of the ...
6
votes
4answers
613 views

Is it feasible to have farmers live in a city and travel out to work on their plots?

Hello and thanks to everyone who answered my other question, it's been really enlightening reading them all (unfortunately as I posted as a guest it seems that account was lost to the void). I've been ...
2
votes
2answers
270 views

How long would it take to be able to live in New York after a nuclear bomb?

If a 50 megaton nuke was dropped in Lower Manhattan, New York, how long would it take for people to be able to live there again? The bomb detonated on the ground. My definition of live is to breathe ...
2
votes
4answers
187 views

Burning Down Chicago

The year is 2100. Internet 3.0 has arrived, with an ubiquitous Internet of Things. Even your wedding band has a fingerprint scanner to make sure it doesn't get stolen. An evil AI has been developed ...
21
votes
9answers
3k views

How to cut off a (unaware and unwilling) city (not an island city) from the rest of the world for a short period of time? (about 12 hours)

How could a group, very possibly militarized, cut off a small-medium sized city from the rest of the world for an overnight period? This includes outside responses like police, national guard, so on ...
1
vote
2answers
82 views

How would we overcome the sinking problem as sediment builds up around urban areas? [closed]

As sediment builds up over the earth, it is compacted into layers of rock, which can be seen in the geological record. However, urban areas typically have good maintenance which washes away any ...
5
votes
1answer
115 views

Winterizing a Municipal Water System

I'm the last person in a large city. Everyone else has left and I don't know when they will be back, if ever. I'm planning on staying in the city as long as I can. I want to avoid, or minimize, a ...
2
votes
5answers
455 views

What would the buildings in a city on a marsh be made of?

In my world there is a city built on a mighty river just as said river opens up into a marsh as it hits the sea. The river is quite wide and deep and when it reaches the city has already crossed a ...
1
vote
3answers
236 views

Mozart city proposal

So here is my proposal for a fictional place I call Mozart city. As could probably be deduced from the name, Mozart and his family run the place. Just to clarify this is in an alternate universe ...
4
votes
3answers
605 views

How many troops would be needed to occupy a city with a population of 2.9 million? [closed]

I have a city that has a population of 2.9 million and an urban footprint around 2,037 square kilometres. For reasons unknown, it's been sealed off from the outside world by a shadowy military ...
1
vote
3answers
1k views

How spread apart were cities, towns, etc. in the Middle Ages given food production capabilities [closed]

There is a video about why certain cities are a specific distance apart and how it has to do with travel capabilities of the time and other economic reasons. I was wondering how this applied to ...
-2
votes
1answer
126 views

What would happen if about 1/6 the world population disappeared? [closed]

I’m writing a story where about 1/6 of the world population is moved out of the world (essentially killed off). The ones killed mostly held positions of power (i.e. Politicians, doctors, lawyers, CEOs,...
0
votes
2answers
4k views

Naming fictional places/ cities/ towns/ etc? [duplicate]

I want to name some fictional places but don't know how. (I'm terrible with names) Are there any websites/ things i can look at to find good ones?
6
votes
4answers
189 views

Convincing a large medieval city of an incoming catastrophe

A tiny subset of a medieval city's million-person population is aware of an imminent magical cataclysm via dreams or visions. They are unaware of each other. Magic in the world is rare and limited. ...
5
votes
1answer
201 views

How long can sewers last unmaintained?

There is a nuclear war. It lasts for 4 hours and most cities are destroyed. How long could a sewer last without maintenance?
-3
votes
1answer
129 views

Why might the UTF combine cities into Megalopolises? [closed]

So, in the late part of the 22nd century all the countries and people of earth combined to form the United Terran Federation. Its capital is in DC, but each former country has its own capital in its ...
6
votes
3answers
2k views

How large is this city and its army? [duplicate]

I'm working in a low-fantasy setting of roughly mid-Renaissance development. Basically Earth-like with some mildly out-there plants and animals, but nothing overtly magical. I see a lot of questions ...
7
votes
4answers
405 views

Arctic City part 1: Electricity

Background Info So a humanoid species has been found in the arctic. Or rather, a humanoid subspecies. That subspecies is Humanoidus Keplerianus Arcticus. They have dense hair all over, sort of like a ...