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Q&A

Posts tagged underwater

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Q&A Would future combat submarines come with jet propulsion thruster?

We currently have jet engine in flighter jet, space shuttle, some race cars but nothing underwater where breaking sound barrier(air) is concerned. I'm imagining in near future many manned electric ...

5 answers  ·  posted 8y ago by user6760‭  ·  last activity 5y ago by user6760‭

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Q&A Sea creature moving via rotational motions

So we all know that the majority of sea creatures use fins that move either from side to side or up and down to propel themselves. But our boats don't do that. Our boats use propellers - a rotatio...

7 answers  ·  posted 9y ago by Aify‭  ·  last activity 5y ago by Aify‭

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Q&A 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 m...

4 answers  ·  posted 6y ago by CollegeKid‭  ·  last activity 6y ago by CollegeKid‭

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Q&A Would the collapse of civilization make turning into a vampire and colonizing the ocean floor a sane idea?

One idea I've always wanted to try writing is the concept of vampires exploiting their lack of a need to breathe and generally low-maintenance biology to escape the brunt of the sun's rays by livin...

5 answers  ·  posted 6y ago by Jason Clyde‭  ·  last activity 6y ago by Jason Clyde‭

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Q&A Are there any structural materials suitable for production underwater?

One of the points made in a number of recent questions regarding underwater races has prompted me to review one of my older pieces of world-building. Namely: the difficulty of producing common stru...

16 answers  ·  posted 6y ago by Pingcode‭  ·  last activity 6y ago by Pingcode‭

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Q&A 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 w...

3 answers  ·  posted 6y ago by R. Greenlee‭  ·  last activity 6y ago by R. Greenlee‭

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Q&A What changes would be needed for humans to live in an ocean?

Taking genetic manipulation of humans to change them to live in other environments, besides maybe gills what other physical changes would need to be done for a human to spend 95+% time living in th...

3 answers  ·  posted 8y ago by bowlturner‭  ·  last activity 6y ago by bowlturner‭

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Q&A Could modern sharks adapt to live in deep water?

After circumstances make the shallow water in the oceans uninhabitable, great white sharks retreat to the deeper parts of the ocean, about 600 feet down (182 meters) to survive. The sharks can not ...

3 answers  ·  posted 6y ago by Bryan‭  ·  last activity 6y ago by Bryan‭

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Q&A How would an aquatic race develop computers?

Following on from this question and assuming the race in question had developed the ability to create tools how would they approach the need for mass calculation. Our early computers were used to ...

19 answers  ·  posted 9y ago by Liath‭  ·  last activity 6y ago by Liath‭

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Q&A How long could a city last if it were completely underwater?

Let's say there is a city, about the size of New York City, that is made only out of stone, steel, and glass. This city would be completely underwater. Assuming no humans are alive in this city, ho...

2 answers  ·  posted 6y ago by SaneDragon‭  ·  last activity 6y ago by SaneDragon‭

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Q&A Where on Earth is best to build a large underwater lab complex?

Let's say I'm an extremely rich and somewhat secretive research group who wants to carry out experiments and such away from the prying eyes of the public. One of the obvious ideas for the location ...

5 answers  ·  posted 6y ago by TheTimeVoyager‭  ·  last activity 6y ago by TheTimeVoyager‭

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Q&A Could an aquatic mammal develop an eel-like fin as opposed to a fluked structure?

Anatomically speaking, could an aquatic mammal develop a horizontal fin that instead of being localized at the end of the tail extends up the sides in a similar manner to how an eel's fin extends u...

1 answer  ·  posted 6y ago by Cowrie‭  ·  last activity 6y ago by Cowrie‭

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Q&A How can a sunken city, Atlantis disappear from the sonar?

It is still a myth as far as our modern civilization is concerned, Atlantis located somewhere within the devil's triangle and it's inhabitants had struck down many planes and vessels daring to dist...

5 answers  ·  posted 6y ago by user6760‭  ·  last activity 6y ago by user6760‭

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Q&A How do 21st century C.E. submersibles enter an underwater dome swiftly and safely?

Imagine there is a micro-city built on the ocean floor in the pacific ocean covered with a durable dome with a 1 mile radius to keep water out. At this moment let us assume that the dome holds up b...

6 answers  ·  posted 6y ago by user6760‭  ·  last activity 6y ago by user6760‭

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Rigorous Science Sea/Air fighters using current/near future tech?

The Setting I'm doing background work on a story involving a civilization about as advanced as ours materiologically. A significant part of their military operates along the continental shelf zone...

8 answers  ·  posted 6y ago by Gio‭  ·  last activity 6y ago by Gio‭

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Q&A 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 i...

5 answers  ·  posted 6y ago by StandardEyre‭  ·  last activity 6y ago by StandardEyre‭

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Q&A In an underwater society, would the wheel ever be invented?

In a different question, someone mentioned "technology dichotomy", where they said "you can't invent time travel without first inventing the wheel". Then I read the question In a society of flying ...

17 answers  ·  posted 6y ago by Nzall‭  ·  last activity 6y ago by Nzall‭

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Q&A What would merfolk economies look like?

This is a world with underwater merfolks and other humanoids. They have opposable thumbs, so they can use tools humans can use. Lets assume there's different subspecies and races of these merfolks,...

5 answers  ·  posted 6y ago by pimmen‭  ·  last activity 6y ago by pimmen‭

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Q&A How would nuclear fallout affect the oceans?

I'm trying to build a setting in which humankind would have no other choice than to live underwater to survive. Suppose there was a nuclear war in which a huge part of the human population died, ...

7 answers  ·  posted 6y ago by neondrop‭  ·  last activity 6y ago by neondrop‭

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Q&A What is a medieval technology method of underwater enemy detection?

I am writing a DnD module where fishmen are invading island nations. The islands would naturally have adapted to this in some way as the raids have been happening for years. What method would these...

17 answers  ·  posted 6y ago by danielson317‭  ·  last activity 6y ago by danielson317‭

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Q&A Engaging your warp drive while underwater

There have been more than a few questions covering Alcubiere warp drives, many about what happens with one at FTL and a few about using them at sub-light speeds. I'm curious about what happens at ...

1 answer  ·  posted 6y ago by Samwise‭  ·  last activity 6y ago by Samwise‭

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Q&A What alternatives for fire can an aquatic sentient species use?

Since fire doesn't burn under water aquatic alien sophonts will use alternative technologies. The question is, which alternatives to fire can they use? I am interested in all aspects of fire, (hea...

6 answers  ·  posted 7y ago by LordKvasir‭  ·  last activity 7y ago by LordKvasir‭

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Q&A Can underwater Atlanteans make explosives without coming onto dry land?

Is it possible for under water Atlanteans to make explosives? These Atlanteans have no magic but do have gills. They look like normal people other than the gills and webbed hands and feet. They...

2 answers  ·  posted 7y ago by Foxy‭  ·  last activity 7y ago by Foxy‭

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Q&A Is there a maximum size an ocean bound creature could grow to?

Assuming the ocean is deep enough and not overcrowded is there any upper limits to the size a "sea monster" can grow? On land creatures are limited by gravity, they have to be able to generate the...

3 answers  ·  posted 9y ago by Liath‭  ·  last activity 7y ago by Liath‭

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Q&A How could a climate-protection organization breed sapient, tool-developing cooperating Cephalopoda?

I am working on a scenario where a climate protection organization tries to breed sapient Cephalopoda as a help in their fight against climate change. The breeding goals of the evolving species are...

4 answers  ·  posted 7y ago by Olga Maria‭  ·  last activity 7y ago by Olga Maria‭

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Q&A How would an intelligent civilization evolve in the floor of a deep ocean world?

Defining what is a super intelligent civilization: An industrial civilization that invest on scientific progress and that builds and manipulates computers, robots and nano-machines, has effi...

9 answers  ·  posted 9y ago by Victor Stafusa‭  ·  last activity 7y ago by Victor Stafusa‭

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Q&A How expressive is a color-based language?

In the answers to this question I learned that some cephalopods communicate via color: Some cephalopods are capable of rapid changes in skin color and pattern through nervous control of chromat...

20 answers  ·  posted 7y ago by Monica Cellio‭  ·  last activity 7y ago by Monica Cellio‭

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Q&A What is plausible biology of ocean-dwelling, tool-using, intelligent creatures?

I want to develop a water-dwelling, intelligent species that could ultimately reach space.1 My question here is about the biology of such creatures. I want my creatures to live in the water, not ...

8 answers  ·  posted 7y ago by Monica Cellio‭  ·  last activity 7y ago by Monica Cellio‭

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Q&A Mermaid architecture

In most representations of mermaid cities, they either live in implausible magical palaces, or in some more or less elaborate cave systems. Assuming the only difference with our world is the prese...

6 answers  ·  posted 8y ago by clem steredenn‭  ·  last activity 7y ago by clem steredenn‭

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Q&A What types of musical instruments would develop underwater?

Water is different from air, and sound waves propagate through water in a different way than they do in air (caused in part by interactions with the bottom of the body of water). For a society livi...

6 answers  ·  posted 8y ago by HDE 226868‭  ·  last activity 7y ago by HDE 226868‭

Question underwater music
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Q&A What is the highest pressure humans can live in in comfort?

These people inhabit an underwater city. In the city there are pools that connect the dry habitat with the outside ocean, this of course mean that the habitat is unpressurized and therefore the in...

2 answers  ·  posted 7y ago by SilverCookies‭  ·  last activity 7y ago by SilverCookies‭

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Q&A Survivors of a far flung Earth

When the earth is flung out of the solar system as per Josh Pirhi's question, not everyone embarks on a spaceship. Instead, as earth becomes a rogue planet, a group of survivors created a self sust...

1 answer  ·  posted 8y ago by Xandar The Zenon‭  ·  last activity 7y ago by Xandar The Zenon‭

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Q&A What are the considerations for waterproofing a building's first few floors?

My city's founders had the short-sightedness to place it on the coast. Now, for mysterious reasons, the sea level is rising. The municipal government has decided that building dikes is "too Dutch" ...

8 answers  ·  posted 7y ago by SPavel‭  ·  last activity 7y ago by SPavel‭

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Q&A Trade between humans and underwater fish people

In my high fantasy medieval world, the ocean is populated by underwater fish people and land dominated by your good old human. Different type of fish people (shark, whale, turtle, shellfish, etc.) ...

3 answers  ·  posted 7y ago by Juliette Evans‭  ·  last activity 7y ago by Juliette Evans‭

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Q&A Standardized measurement for trade between world with different gravity?

So I was building my world with underwater civilizations and someone raised a question (see here) that I thought was interesting related to trade aspect: how would we have a standardized measuremen...

6 answers  ·  posted 7y ago by Juliette Evans‭  ·  last activity 7y ago by Juliette Evans‭

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Q&A Underwater communication on land and beyond

So I'm thinking about an underwater civilization and everything related to it, and I got to thinking about how they would communicate over extremely long distance. I knew that underwater species l...

3 answers  ·  posted 7y ago by Juliette Evans‭  ·  last activity 7y ago by Juliette Evans‭

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Q&A How would merfolk store and preserve their food?

I've been reading this question about agriculture for merfolk and more specifically the accepted answer. They mention the problem of food preservation only minutely. Now I'd like to pour that thoug...

4 answers  ·  posted 7y ago by D-zap‭  ·  last activity 7y ago by D-zap‭

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Rigorous Science How wide would my cylinder be to allow air 500m below water surface?

I'd like my (very well funded) group of scientists to conduct an important excavation, in-situ with fully breathable air and comfort. I realize a pipe down to the surface would require a pump and ...

7 answers  ·  posted 7y ago by Mikey‭  ·  last activity 7y ago by Mikey‭

Question underwater
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Q&A How could an interested billionaire deploy sensors to as much of the deep ocean as possible?

Consider a billionaire living on earth today. What would be the most effective way to deploy sensors to a vast area of the earth's sea depths? (Sea depths referring to the sea floor, and slightly a...

3 answers  ·  posted 8y ago by Others‭  ·  last activity 7y ago by Others‭

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Q&A Could traffic lights work underwater?

Is it possible for traffic lights to work underwater? Even for a short period of time. I understand that any electronics inside would short-circuit pretty quick. But could it be protected by the ac...

4 answers  ·  posted 7y ago by blue52‭  ·  last activity 7y ago by blue52‭

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Q&A Could amphibious creatures ever evolve hand-like parts?

Could there ever be an incentive for a fish or other aquatic being to use simple tools, like early humans did? Would it be possible for any structure of a current water-dwelling being (for exampl...

6 answers  ·  posted 7y ago by Aaron Franke‭  ·  last activity 7y ago by Aaron Franke‭

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Q&A Urban centers for octopuses

I am imagining a water covered planet. There could be a few pieces of land scattered here and there, but >99% of the planet's surface is water. There are various ecosystems and biospheres where ...

3 answers  ·  posted 7y ago by mlurette‭  ·  last activity 7y ago by mlurette‭

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Q&A Mermaid means of transportation

Assuming we're talking about a world similar to ours with the difference of the existence of mermaids, that are fishes with an upper half visibly similar to a human's, live in the sea, can survive ...

2 answers  ·  posted 7y ago by Lwoorl‭  ·  last activity 7y ago by Lwoorl‭

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Q&A Urban Aquatic Sanitation

In a fantasy world (a D&D setting, basically), how would an open underwater town populated by an assortment of mer-people deal with waste disposal? A few details: the town in question is a part...

4 answers  ·  posted 9y ago by Magician‭  ·  last activity 8y ago by Magician‭

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Q&A What would be the communication range of an underwater species?

It's a commonly known fact that whale song travels huge distances. In fact apparently before the oceans were so noisy they could communicate over 10,000km! However, whales are very big! They can c...

6 answers  ·  posted 9y ago by Liath‭  ·  last activity 8y ago by Liath‭

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Q&A How could an underwater civilization develop fire?

This is the follow-up question to How could an underwater civilization develop electricity?, as mentioned there. In that question, I never addressed how my civilization could have discovered/used ...

3 answers  ·  posted 8y ago by HDE 226868‭  ·  last activity 8y ago by HDE 226868‭

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Q&A How do mermaids perform major surgical procedure underwater?

Suppose the mermaids share similar intelligent and technology with us, they also practise performing surgical operation like we do in hospital. Negate the issue of negligent during the operation th...

3 answers  ·  posted 8y ago by user6760‭  ·  last activity 8y ago by user6760‭

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Q&A Is an "Underwater Metropolis" possible today?

Im sure some are familiar with Bioshock's "Rapture City," a (somewhat) successful underwater city that was able to maintain stability and house an entire population. But, using current technology a...

2 answers  ·  posted 8y ago by Nathan Hardy‭  ·  last activity 8y ago by Nathan Hardy‭

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Q&A What adaptations would an aquatic humanoid species need to develop sonar?

So, I have an aquatic humanoid species that I want to be able to use echolocation. They are extremely similar to humans,with some minor differences, like gills. (The reason I include this tidbit is...

1 answer  ·  posted 8y ago by Xandar The Zenon‭  ·  last activity 8y ago by Xandar The Zenon‭

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Q&A Could an aquatic civilization discover space travel?

Building from this and this, given an aquatic civilization somehow manages to forge tools and build computers, could it build space-faring devices? Also another development that would come earlier...

7 answers  ·  posted 9y ago by SaintSix_‭  ·  last activity 8y ago by SaintSix_‭