Is it possible to ?

[AuntyEthel]

I can't give an intelligent response because all I'm thinking about is an entire nation of Aquamen.

 

[Genta8]

Rapture thread much? And it would simply be somewhat of an island that you then let sink a bit into the ocean. Actually, I think there is an underwater hotel already if that counts.

 

[Danny Ocean]

I can't give an intelligent response because all I'm thinking about is an entire nation of Aquamen.

No no, Seamonkeys.

They don't actually die. They have their heaven under the sea.

 

[AuntyEthel]

I can't give an intelligent response because all I'm thinking about is an entire nation of Aquamen.

No no, Seamonkeys.

They don't actually die. They have their heaven under the sea.

Huh? I'm talking about everyone being like Aquaman. Having a mullet and no superpowers, y'know? Not Seamonkeys or Seamen or anything.

 

[Ronwue]

Is the earth covered in cities? No. Till that point there is no reason to build in a hostile environment in which a leak would be a very very bad thing.

 

[Xpwn3ntial]

Is it possible for mankind to build a city underwater and how would we do it?

To be honest my theory would be the exact way we build normal buildings, but after making the domes or what ever the roofs going to be like they would drain the inside and depressurize it.

That theory's logical but I don't like logical I prefer making it up, so whats your plan of making a city underwater?

That works until a certain depth. My best guess would be 150 feet.

 

[Xpwn3ntial]

Is the earth covered in cities? No. Till that point there is no reason to build in a hostile environment in which a leak would be a very very bad thing.

We need the rest of that land for farming.

 

[Erana]

I'd prefer an aquarium ceiling, frankly.
Though the possibility for geothermal energy is awefully enticing...
No! We must not disturb the delicate ecosystem and those adorable crab thingies!

 

[seamusotorain]

Its possible but I have to say theres no challenge. What I'm looking forward to is a ship that can support an entire city

I think this is more of a choice between "Waterworld" and "BioShock"...

It depends on how deep the city is, I suppose.

 

[RAWKSTAR]

I say that we need to go underwater SOON, because half of the world will be anyway. I am in the Midlands of the UK, and if science is correct, I am safe.

Lets here it for being British!
I live in Wales on top of a mountain, I know Im safe... and scared shitless of water.

 

[Sennz0r]

We'd need some clear substance that could withstand the pressure (no one wants pretty much an underground non mobile submarine). Power would also be a problem. Also looking at problems with flooding and water seeping would be hugr. So would be finding food other than fish, plus transportation between the surface and the sea bed would be extremely hard or inefficient, then theres the fact that that this city couldn't have much recognizable use. Tourism? It's deep so you can't see shit and for fishing (or sea kittening) it just doesn't merit the building of an entire city.

This is of course referring to deep sea. Something a few meters below sea level could make a very nice tourist spot, barring flooding.

I love the reference there xD Pray it doesn't become something frequent though, or you'll be playing right into PETA's hand.

As to your question what use it would have: I'd think it'd be pretty awesome to live under water. Plus marine biologists would have a field day (or should I say lifetime) down there.

 

[Simalacrum]

sounds like something that could theoretically be possible, but would cost trillions of dollars (or whatever currency they'd use), and won't happen anytime soon.

 

[Nivag the Owl]

My faith in humanity will be totally restored if that happend. It would require a hell of a lot of oxygen though so I don't think it will be happening this century But that's still such a cool idea, I hope it happens NOW.

 

[mokes310]

Give Andrew Ryan and a few of his favored scientists a large amount of money and tell him to get cracking.

It would be funny to find someone named Andrew Ryan, hand him a dossier out of the blue, and demand that he began work on such a project. For example, getting in his face about it at a coffee shop, or something along those lines.

 

[Abedeus]

Until people find a way to make O2 from H2O, there is little chance to live in such a city. Sure, you can build it, then sink it to the bottom, but what's the point? You would die of pressure or lack of oxygen.

 

[GunslingerUK]

You all speak of this cost, ever heard of finance?