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Questions tagged [water]

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

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2
votes
3answers
414 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 ...
5
votes
3answers
142 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
109 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
174 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 ...
-2
votes
2answers
351 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 ...
41
votes
31answers
16k views

A way of getting the water to the top of the tall building without electricity?

First, let me explain the situation. Post-apocalypse setting, a group of humans (let's say around a hundred of them) have to find safe places to live at, protected from animals, bandits, and other ...
-1
votes
1answer
109 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
62 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
115 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
149 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 ...
16
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
202 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
8k 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', ...
5
votes
2answers
125 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
325 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
11k 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
130 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 ...
13
votes
9answers
6k 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
111 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
900 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? ...
19
votes
4answers
814 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
513 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
574 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
150 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
1k 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
273 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
132 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 ...
5
votes
7answers
745 views

Getting large amounts of water to the Australian outback

I want to build a city in the desert outback. It needs drinkable water for its citizens, what's a few different ways to get it? (pipes from coastal areas, desalination of salt lakes, etc) What are ...
16
votes
3answers
2k views

A planet with all of its water underground

Question: Could a planet contain all of its (vast) oceans underground? I imagined a planet with no surface oceans - and no water cycle above ground - but where life was still possible. My initial ...
14
votes
11answers
3k views

How to create tides in a small sea?

I've done a bit of research and small bodies of water don't have significant tides, even the Mediterranean doesn't have particularly large tides. So how can I get bigger tides on a small body of ...
2
votes
2answers
332 views

Effect of multiple tons of dry ice being dropped bomb-like into lake near a city

I have a bomberplane capable of carying a nuke. A large nuke. Let us say that I don't like the idea of wiping a city from the face of the earth. Instead, I decide to mass-produce solid CO2, and drop a ...
3
votes
2answers
192 views

Would it be possible to have fresh water in a world where there was a major volcanic eruption which destroyed all civilisation apart from one city?

For an area in a world I am creating, 300 years prior to the present day, the northlands were destroyed by major volcanic eruptions. Would it be possible for there to be water accessible to a party ...
2
votes
1answer
817 views

A world without surface tension

I was wondering: what if a planet (such as earth) suddenly had all surface tension removed (mainly in water, because all carbon based life forms need it.). What would happen?
0
votes
1answer
139 views

Deep Water Weapons/Vehicles [closed]

Edit: The original question had too many offshoots and was too broad. I hope this new question is better formatted. I am working on a concept where Earth is unintentionally "invaded" by aliens from ...
13
votes
11answers
4k views

What rules can limit magical teleportation? [closed]

In my story, some people have the power of teleportation. I have constructed it in a way in which for teleportation to occur, it needs to be a water surface. All one needs to do is to see the ...
5
votes
8answers
610 views

Can a city in a flood plain be maintained for centuries if it is built on stone blocks?

This question is part of a series that includes mosquito prevention and agriculture. The environment is a rain forest basin, similar in many ways to both the Amazon and the Congo. There is a mighty ...
5
votes
5answers
3k views

How would it be possible for an island to sink into the sea?

In the novel I'm writing, there is an island that sinks below sea level and rises up again at a later date. How is it possible to do this, while both keeping the surface of the island dry when it ...
-3
votes
1answer
153 views

We broke all the river dams. Does it reverse environmental damage/climate change? [closed]

A group of humans, called the Dams, became sick of political feuds involving water. They were completely tired of the wasteful wars the countries fought for water resources. These wars had created a ...
13
votes
6answers
1k views

Liquid water on both sides of a tidally locked planet. Feasible?

I'm brainstorming for a rocky planet with similar mass to that of Earth's, orbiting a red dwarf star. It is tidally locked with no natural satellites, yet I'm bent on having liquid water on both sun-...
0
votes
2answers
123 views

What would be the benefits/ problems with a continent wide underground aqueduct system?

Let's imagine America some years in the future where technology has advanced to the point where we can easily create a nation wide underground aqueduct system. Pavement is porous and allows a certain ...
2
votes
3answers
466 views

What technology can create water on an airless, desert planet?

Planet has these characteristics: Half of the planet is always on day, and other half is always night (it rotates at the same velocity as its orbit) There are no underground water sources; it's all ...
47
votes
19answers
9k views

(How) can I provide reliable water sources in a world of flying islands?

I have humans who live in a world filled with floating islands. These islands span all heights in the planet: from the core to the upper atmosphere. The problem I have is that most of these islands ...
9
votes
2answers
2k views

How to build a floating farm?

This is one of a series of questions also discussing mosquito prevention and city building. There is a civilization indigenous to an area like the whitewater flooded forests of the southern half of ...
4
votes
7answers
588 views

Water supply in medieval realm

I have this medieval world with this big realm. Its climate is dry and warm and the main issue is what to drink, how to do the hygiene, agriculture etc. They have no access to seas nor mountains. ...
5
votes
4answers
459 views

City on a Cloud - how to build an effective water supply?

The Utopians are a wise and benevolent civilization with Ancient Rome-like technology. Unfortunately, they are so peaceful that they are constantly on the verge of being conquered by the neighboring ...