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Questions tagged [water]

For questions that have to do with the liquid form of H2O.

5
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2answers
72 views

Maximum realistic salinity level with thriving aquatic environment?

I'm trying to create a planet which environment is not immediately lethal to humans, (reasonable oxygen level) however after closer inspection turns out not to be specially Earth-like. One issues is ...
4
votes
2answers
109 views

What water generating technology would be required to create a planetary scale flood?

Aqadatio is a planet which is completely flooded. This flood was generated by its own government to get out of debt (long story). The inhabitants of this planet are technologically advanced, more so ...
7
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4answers
578 views

How common is it for a river to enter a valley from a flatter plain?

before I get into my question I wanted to thank everyone for their input in my first thread about the general principles of river drawing. I have taken your comments under consideration and began ...
8
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4answers
292 views

I'm going to have to redraw most of my rivers - what do I need to know to make them true to life?

I'm new here but I've been a worldbuilder for the last decade or so. I'm pretty late to the 'mapping out your country' party and I've only been at it for about 8 months, but I'm starting to see some ...
1
vote
1answer
96 views

Genetic altering to make human lungs strong enough to process water [duplicate]

I am aware that human lungs can't process water due to other reasons, but I am working on a setting that has genetically altered humans of various degrees and one of them can breathe water and air. I ...
66
votes
24answers
16k views

What is the utilitarian purpose of artificial waterfalls?

In sci-fi and fantasy artwork, I often see a city built on top of or incorporating waterfalls: James Gurney's Dinotopia (above) is an egregious example with "waterfall towers". When the city is ...
1
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3answers
157 views

How do I build an ancient moisture vaporator?

Let us suppose a world that exists under a harsh red sun. The entire planet, which may once have been fertile, is, in its current state, covered with desert. The civilization living there, which may ...
0
votes
3answers
165 views

What amount of heat would be necessary to evaporate the oceans? Can his heat threshold be reached if there were no ozone layer? [closed]

The problem in my fictional future Earth was: almost the entire ozone layer disappeared due to a massive release of CFCs in the atmosphere. I was trying to calculate if this would lead to the oceans ...
2
votes
0answers
79 views

Why would somebody want to stop the four elements? [closed]

I'm writing a story about the four elements that are in four people. One controls water, one controls fire, and so on for air and earth. Why would the antagonist want to get rid of the four people/...
2
votes
9answers
1k views

Building my Flat Earth, how to make my Ice walls last for eternity [closed]

In a world where Earth does NOT have gravity (Gravity does not exist). Our oceans are created by Ice walls. Ice walls? How can they exist so long? In the Flat Earth model, the Ice walls are situated ...
7
votes
1answer
627 views

Massive tides and resources

Assuming a situation similar to this, where the moon causes slower but massive tides that slowly encircle the globe. Would the poles be constantly underwater or not underwater (like A or B below)?: ...
15
votes
9answers
3k views

Can a house cut off from the world still have water for a short time?

Related to this question a bit, the house I'm talking about was swallowed into another dimension along with parts of its garden. The house itself stays completely intact, but the piping is cut off, ...
3
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7answers
2k views

Is it hypothetically possible to create a giant levee that is a non-physical forcefield or electronic membrane?

What examples are there in science fiction of molecular shields that can cancel out or "eat" certain molecules--and are they plausible? Is it hypothetically possible to create a giant levee that is a ...
3
votes
2answers
142 views

World in drought - How long does it take for a forest to die without water?

In my world a powerful earthquake produces an opening in the tectonic plates and changes the geography of an entire continent. Most of the great rivers deviate from their courses or disappear, leaving ...
5
votes
1answer
101 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 ...
3
votes
4answers
633 views

What purposes could a technological ruin with a half-mile sphere full of water have served? [closed]

There is a soft sci-fi RPG called Numenera, set on the Earth a billion years in the future, where multiple technologically-advanced civilizations have risen and fallen, and a new human civilization is ...
15
votes
9answers
6k views

Would it be possible to make a water mill without metal?

I'm making a human society that has a lack of metal ore and no knowledge of metalworking at all. However, industry must still continue, metal or not, so I'm thinking about a water mill made out of ...
26
votes
9answers
6k views

Sailing without wind, but with strong currents

Context On my world, there is a lot of water: sea, oceans, ... There are also firm land and islands, so it's interesting to travel on the water. The problem is that there is NO wind at all, and lots ...
6
votes
3answers
450 views

Can you have reduced visibility (due to fog) but an atmosphere that is still breathable?

Is it possible to have an atmosphere that is essentially fog, but still be breathable by humans? I'm basically looking to have an environment where visibility is very low (for suspense reasons) even ...
2
votes
3answers
243 views

Element Handling Justification: Water manipulation

I am roleplaying in a lore where elemental justification is really poor. However, loving a good and strong background, I would like to explain why my character is / would be able to manipulate ...
4
votes
3answers
129 views

A Worldwide Wave

What would have to happen for a giant tidal wave to wash its way around an entire planet? The planet can be like earth, with the same size, mass, and everything else. However the wave must start ...
-3
votes
2answers
99 views

What can cause the formation of a water canopy above the Earth's surface?

Here is a link to the water canopy theory. My question is: how this water could end up there, high above the surface? I was thinking about two possibilities: a comet spreading ice/water as it ...
6
votes
3answers
160 views

Deep Sea Habitat on a Low Gravity Planet

I read somewhere that the lowest depth for a sustainable underwater habitat is estimated to be three-hundred meters. Any lower and the pressure becomes too great for structures that are currently ...
-3
votes
2answers
250 views

Could a 2-litre milk carton be used to knock someone unconscious? [closed]

More specifically: could a 2-litre milk carton like the one pictured below be used to knock someone unconscious via a single blow to the head, or would the carton burst from the force? Here is some ...
25
votes
16answers
6k views

How to make sure humans do not know the meteorological phenomenon rainbow?

You've got to love the rainbow, it's an awesome sight. But I don't want humans to have the pleasure of seeing the rainbow. What change to the earth, atmosphere and so on, is needed so that humans ...
-1
votes
1answer
102 views

Protect 18th century marines weapons & supplies in water

Sometimes to win a war or battle a nation must conduct amphibious operations and such, that require soldiers to enter water. Experiencing this, "X" nation decided to create a branch of marines/naval ...
-2
votes
1answer
56 views

What would cells with a higher water content do to amphibious humanoid organisms? [closed]

Jellyfish are 95% water, humans 70%, frogs about 80%. What would a cell water content of around 80% mean to a humanoid? It is the size of a human adult with a long tail and some external gills. ...
23
votes
5answers
6k views

How could the rain fall slower?

I was thinking about people who once told me that I must feel the rain earlier than them (I'm tall). So I thought of a world where the rain falls so slowly that the humans of different size living on ...
6
votes
5answers
1k views

Foam-like water

What can cause water to be foam-like, in lumps, but still liquid? Something similar to goo (jelly like but liquid and opaque)? I have a planet and such kind of water, which is drinkable and the ...
1
vote
3answers
103 views

What would be the effect of a world with much less water? [closed]

Say a world has, instead of about 70% water (earth), only 25% water. This would be in the form of one ocean, and all the rivers and lakes. The land has about five mountain ranges, and the planet is ...
1
vote
1answer
136 views

A world dominated by hamsters [closed]

One day, a few months ago, I read a post, some one guy talking about a hamster world domination. It was weird but interesting. The post has not especifications, but still, It is funny and interesting ...
15
votes
7answers
5k views

What could cause the world to be almost completely submerged in water, naturally or man-made?

I'm trying to build a world that is almost completely water, but I couldn't come up with an explanation for WHY the world was like this. The world has the same gravity and atmosphere of Earth. It also ...
0
votes
3answers
154 views

What would happen if water froze at a much lower temperature? [closed]

I've stumbled upon few photographs that capture water in all three phases - solid, liquid and gas (well, vapor). And then I thought to myself, there is probably a good reason why life works with water ...
19
votes
9answers
7k views

All of the freshwater on Earth has suddenly vanished - would humanity survive? [closed]

Consider a scenario where all freshwater on Earth suddenly disappeared... Would the planet remain habitable? Definition of water removed: Everything in this chart under the category 'freshwater', ...
4
votes
2answers
110 views

Is it possible to create a giant, water-powered music box?

On another world, there is giant ravine leading into a cave where a sentient species live (Let's call them Cavers). They have limited access to materials; the only resources they have are rocks, ...
2
votes
3answers
309 views

What would be helpful for survival in areas with temperatures just below the boiling point?

I have a planet where the equator temperatures are near boiling point (90˚C or 194˚F) during the "summer". What qualities would an animal need in order to survive these kinds of temperatures to ...
8
votes
3answers
1k views

Could water be separated from a mixture by natural condensing/freezing?

Our colony has landed on a planet which is a complete barren desert wasteland, the surface as dead as the moon but also extremely cold, being quite far from the local star. They have settled at the ...
36
votes
15answers
10k views

What methods might an ancient civilization use to desalinate sea water?

Following on from my previous question here concerning the ancient civilization I have called the Androy and their struggle to survive terrible drought conditions on their planet. After years of ...
1
vote
1answer
111 views

Resources and shelter for water-based fantasy world [closed]

Say there is a fantasy world where land is extremely rare, with only a few islands specling it's surface. The rest of the world, however, is covered in a single ocean. What would a society be like in ...
12
votes
8answers
5k views

Using a quarry as a water reservoir

Our country, which is located in thousands of km2 of plains, needs a way to store water. Dams are not an option due to the fact that there are no mountains. We have retired mining quarries that are ...
2
votes
0answers
110 views

Human dominated by hamsters [closed]

In a world dominated by hamsters, how would people solve the conflict of drinking water shortages?
9
votes
7answers
753 views

O'Neill/McKendree Looping River

Is there a way to design a river system in an O'Neill/McKendree-style cylindrical habitat to passively feed into itself in an endless loop, from one end of the habitat to the other and back again? ...
16
votes
4answers
425 views

Is it possible for a planet to have a liquid ring?

Is it possible for a planet to have a liquid ring rather than a ring made of solid particles? If it is, how long would it be stable for? If not, is there any other configuration of a liquid that ...
1
vote
2answers
289 views

water (like ours) vs. water-ammonia vs. ammonia planets - some questions

In a solar system much like ours, would there be the possibility of a planet of our size that would have lakes, rivers, oceans, etc. that would be composed of either a mixture of water and ammonia (...
18
votes
10answers
6k views

How could an organism store a massive amount of water?

I want to design a creature capable of surviving long periods without drinking water, but I am not sure how that creature could store water. These are my ideas but I am looking for something more ...
9
votes
5answers
515 views

How to manage water in a city 2500 feet below sea level?

In my Pathfinder RPG campaign setting I have two continents separated by an isthmus. An artificial canyon carved through the isthmus from one ocean to another divides the continents. The canyon is ...
5
votes
3answers
118 views

Aquatic Environment: Aquatic Floral and animal fabric

I need you guys to help me out here. I'm developing clothing ideas and I need to understand what animals and plants may be used to create such clothes. Part of a story that I'm creating is a water ...
0
votes
6answers
683 views

Maximum height for a pump [closed]

We have a river at the bottom of a slope. The only arable land nearby is at the top of the slope. We can build a water wheel and turn a screw inside a pipe, so the pipe can lift water up the slope. ...
4
votes
7answers
258 views

How to dry up Earth's water while keeping the planet survivable

In my story I want to create a post apocolyptic scenario where a good deal of the Earth's water has been evaporated or simply drained. Leaving a vast desert. There are suvivors that are attempting to ...
6
votes
1answer
126 views

Balancing Water Vapor and Temperature for Global Cloud Layer

BACKGROUND: I have been working on a game called Rise: The Vieneo Province. Vieneo is a terrestrial moon (all details can be found here) but we have an atmospheric composition we arrived on from ...