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Questions tagged [ocean]

For questions about bodies of salt water large enough to sustain their own internal currents and do not drain to any larger body of water. Covers both currents, navigation, and ecology.

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2answers
77 views

How would a colossal explosion affect an ocean-based planet?

In my book series, a space station called the T-Ray that is capable of causing explosions the size of the Chixculub impact explosion just fired at a planet that is completely covered by a massive ...
6
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3answers
983 views

How Would A Group of Undersea Explorers Survive if Their Food Supply Ran Out?

In my book series, a group of a few hundred explorers are sent from a planet called Ishgabangaloodoo to explore Sea World. Some things to know about Ishgabangaloodoo: Its citizens are referred to as ...
8
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2answers
112 views

How would you go about seeding oceans of Europa with adapted Earth life?

How do you go about building a working Earth-like ocean ecosystem from scratch in Europa's subsurface ocean? On Earth, abyssopelagic species have evolved to live more than 6km below the surface. ...
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0answers
40 views

How would an extra moon affect the tides? [duplicate]

In my world, I'm planning to add a second moon which would be positioned closely to the first. I was wondering what effect would that have on the tides?
9
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4answers
2k views

In a single-continent world, what could cause hydrothermal vents?

In the world I'm building, there is a single continent. However, in the deeper parts of the ocean, there are hydrothermal vents. They're pretty necessary to my story, but I can't figure out why they ...
23
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12answers
8k views

Is it possible to bind multiple ships together on open water?

In Renaissance period, would it be possible to safely bind ships together for extended periods of time? Imagine if there was a fleet of large ships (say, two dozen) that have been traveling over a ...
5
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3answers
154 views

What would happen to the climate if Earth's sea-levels rose 2000m?

This is the first of possibly several posts about the following scenario, in which Earth's sea-level rises 2 km overnight, generating a world map looking like this: Question: What would be the ...
7
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4answers
1k views

How to have high tides in the tropics?

The Bay of Fundy sees the world's highest tides, with ocean water advancing and withdrawing as much as 20 meters or more within a single day. Here is a list of the 50 tidal stations around the world ...
59
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8answers
12k views

Could a submarine built during the cold war maintain pressure underwater for 50 years?

I'm working on an idea for a novel and need to know roughly if this is possible. Ideally, the characters would be able to attach another submersible (usually used for rescue) onto the sub in the ...
20
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7answers
4k views

What would it take for an island to sink and rise yearly and naturally

So I'm writing a book and need help to better explain this island that sinks, more on that in a moment as I give you the basic build of the planet... First, its a world on a very tilted angle. the ...
18
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9answers
5k views

Why build underwater outposts, rather than ocean-surface settlements?

Suppose we've colonized a planet with 99% of the surface area covered by oceans. It has submerged continental crusts, averaging 200-500m underwater, with the average depth of open ocean being 1000-...
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2answers
179 views

How long would it take oceans to evaporate if they stopped gaining water?

How long would it take for the oceans to evaporate if the following were true? They suddenly stopped gaining water through rain/rivers/etc., and External patterns (e.g. atmospheric humidity) were ...
2
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2answers
160 views

Marine Animals best suited for domestication?

What marine or brackish water animals would be best for domestication attempts by a semi-aquatic civilization? Bonus Points for those that get me pet/domesticated sharks!
7
votes
3answers
434 views

What is the maximum height for coral?

I have a type of coral that feeds off of bacteria that love bird feces (or something involving a bird species). It grows large rocky spires out of the water to create a habitat for birds. I need to ...
10
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6answers
307 views

Do moons determine the speeds at which tides move? Is there a limit to this speed?

I'm writing a short story that takes place on an imaginary planet that is 88% ocean. The planet has two moons and one continent that is regularly flooded under 500 to 1500 feet of water. The tides are ...
23
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12answers
9k views

Could a person scuba diving take off his air tank and use it to propel himself?

So, in my story, in a prelude to an epic aquatic fight scene, my main character gets chased by a great white shark. He swims as fast as he can but he can’t escape. Just to clarify, he’s wearing one of ...
18
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7answers
3k views

How do I maximize a planet's wave height (on average)?

Premise I am in the formation phase of a fictional world. I would like one of its notable characteristics to be extremely large waves. On Earth, most of our large waves are triggered by earthquakes, ...
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3answers
91 views

How to save a person who has just fell down form an oceanic city? [closed]

So, my main characters, Bryan, Julia, and Logan have been visiting the city of Hydropolis, on the ocean planet of Aquatus V. The city overlooks the most beautiful sight under the sea, a 5,000 foot ...
15
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4answers
2k views

Could you actually make Sandy's Treedome in real life?

So, I have a question that focuses on a character from a show, Spongebob. Sandy Cheeks lives in a reverse aquarium under the sea in Bikini Bottom, in a dome that looks like this The Treedome is made ...
10
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3answers
3k views

Boats for really tall people

So I'm writing a book that takes place in an endless ocean with islands inhabited by many races, and I'm trying to come up with unique boat ideas for races; well I have most of them, but I would like ...
15
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7answers
2k views

Is it possible to detect or recognize mammals, fishes or any other sea creatures that swims in an ocean from a flying aircraft?

I am working on a story and I would like to know if it's possible to detect or recognize mammals, fishes or any other sea creatures that swims in an ocean from an aircraft with our current technology ...
3
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2answers
203 views

is it possible to detect submarines in a sea from an aircraft? if possible how will it be?

While working on my story, I just came up with this doubt. Is it possible to know or to detect something like a submarine in an ocean from an aircraft with our current technology? I mean to detect it ...
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0answers
66 views

Life on oceans above the sky [closed]

The Leidenfrost effect is a physical phenomenon in which a liquid, in near contact with a mass significantly hotter than the liquid's boiling point, produces an insulating vapor layer keeping that ...
-1
votes
2answers
100 views

What would be the best underwater environment to set up their civilization?

So, on the planet Oceanus, their exist a species, called the Crustaceanoids, who live in an aquatic environment. They are crustaceans, no duh, and are crab like animals. They are exceptionally ...
4
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4answers
121 views

Genetically altering soldiers to be capable of doing missions in an aquatic environment?

So, in the mid 25th century, humanity has become a space faring race, with about 10,000 planets under control of Earth. There are many different ecosystems on different planets, from normal ones, like ...
4
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9answers
278 views

How to sink a small island under the sea with 1960s tech?

So, on the planet of Qualia, a tiny island of the coast of Da’Tora called Saluk has disobeyed Tora VII the Slaughterers rule, which is never a good idea, as you can guess from the name. He stationed ...
8
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2answers
171 views

Is there anything wrong with my plate tectonics map?

Here is a map I just produced of the plate tectonics of a world I'm working on. Does anyone familiar with the subject see anything wrong with it? If you can differentiate between the penciled and the ...
3
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5answers
2k views

I need a way to transfer two men from a submarine to a sunken rocket [closed]

I need a way to get two men from the inside of a submarine to the inside of a sunken rocket 3000 feet under the water without killing the men flooding the rocket flooding the submarine Does anybody ...
0
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1answer
200 views

What could be the energy source of a sentient, supermassive biological entity on an ocean planet?

In exploring the xenobiology and design for an entity (Entity X) in my fictional universe, I wanted to raise the viability of an organism that is so massive, it is visible from the planet's upper ...
6
votes
2answers
200 views

How to keep this artificial water planet from evaporating or freezing?

Piggybacking on this question: Could soft matter infused with nano or pico sized magnets be used to clump together so that we could create environments with it? ...So we have a planet that has lower ...
20
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5answers
3k views

How deep can I make my underwater facility?

In my world I want to create a really deep underwater science facility to conduct weird and unethical experiments in. But I think to myself: How deep could I take such a building? Does it become ...
0
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0answers
67 views

Why would a world have a floating ocean [duplicate]

I'm imagining an expansive body of water that is suspended high above the ground. One that can sustain diverse ecosystems that take advantage of the water to air conditions. What natural or other ...
6
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1answer
187 views

Size and Effect of Ocean Tides on My World

I'm building a world that orbits close in to an M-Dwarf sun. I've figured out a bunch of the physical parameters of the world, I just can't quite get a solid handle on my tides. I know my tides will ...
10
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5answers
282 views

Would Floating Islands Dampen Waves on a Water World?

This is a water world with depths ranging from 2-3 kilometers deep up to vast shallows of only a few meters deep usually around volcanic islands, where there are coral islands not bigger than Hawaii's ...
33
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8answers
8k views

If there are water oceans, must there be oxygen in the atmosphere?

I am trying to create a planet that either has no oxygen in the air, or it has very little; i.e. not enough to sustain humans without the use of a breathing apparatus. Large portions of the planet (...
8
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2answers
704 views

Life in extremely low gravity water

Let's assume the planet has only one half the mass of the moon and is covered by shallow ocean. To eliminate water pressure at extreme depths, assume the ocean is also quite shallow, with a maximum ...
26
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5answers
5k views

How reflective is blood?

If you were on a raft in say, an ocean of blood, and it was very still, would you be able to see the stars of the night sky reflected in it? Would you be able to see your own reflection? How far down ...
0
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4answers
384 views

If all the water on earth were to be displaced into the atmosphere creating a water canopy, how thick would it be?

If the water on earth were displaced to surround the earth in the atmosphere to create a water canopy, how thick would that canopy be? I apologize I should have been more specific in my original ...
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4answers
158 views

In a world 2x the size of earth would sentient aquatic life be more probable?

The idea is in a world with 2x the gravity (which follows from 2x the size), gravity would have less an impact in the oceans. Does that follow?
15
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8answers
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 ...
4
votes
4answers
242 views

Could a giant floating self-supporting city survive a thousand year voyage?

One of the main plots in my world is that a huge ship arrives in a strange group of isles. This ship a gigantic city that completely self-supports itself with farms, houses, gardens, parks, and even ...
7
votes
2answers
354 views

What are the conditions of an Earth-like, water-ball planet?

I'd like to explore some details on a so-called water-ball planet (i.e. a planet in the habitable zone of a sun, covered by a 100 km deep ocean). I am particularly interested where life could develop ...
61
votes
9answers
13k views

A 40km diameter alien saucer is floating 2km above the ocean for a long time. What are the effects on the sea ecosytem below?

Twenty years ago, a 40km diameter alien saucer came to Earth, and stopped 2km above the Atlantic ocean, somewhere near the midpoint between Casablanca, Morroco and Natal, Brazil but over international ...
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votes
5answers
201 views

Fleet defenses against massive creatures [closed]

In my fantasy world, humanity thrives on massive migratory fleets, moving in large numbers between the sparse islands. However, there are massive creatures that live in these places in between, ...
19
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10answers
3k views

How to keep a ship's crew healthy in a fantasy renaissance setting?

So, in the age of sail, there where hundreds of dangers lurking in ships, mostly in the form of sickness such as scurvy, and I'm looking for a way to have sailors in a similar technology level as ...
5
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4answers
613 views

Maximum Ship Size with Seasickness?

What is the maximum size a ship can become without negating the effects of waves to the point where seasickness is no longer a problem? The larger a ship becomes, the smaller the rocking effect waves ...
3
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2answers
201 views

Tides on a Water World

How would waves and tides work on a planet that is completely covered by Ocean? It would have: Oceans of Similar depth to Earth's Atmosphere extremely similar to Earth's Same type of star and ...
2
votes
5answers
273 views

What would happen to Earth if it were eclipsed for nearly 10 days?

What would be the major changes that could happen if Earth experienced a solar eclipse caused by a fictional planet for a minimum of 10 days? Mainly what would happen to the oceans and flora in such ...
18
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9answers
7k views

Could a jellyfish be bio-engineered to convert salt water into fresh water?

For my future world, I've decided that coastal cities need fresh water and there isn't enough of it to go around. I don't know how jellyfish work. Is it feasible or completely impossible for ...
3
votes
3answers
593 views

How can two planets merge into another, bigger planet?

In my universe, there are two ocean based planets floating in the space. I would like to merge them together with a realistic way. What event would cause the planets to merge into a bigger one? (Sorry ...