Discussion
Whilst watching the Abyss last night, a question dawned on me -
If you are in a submersed station with a moon pool, is the water pressure on the surface of the moon pool the same as outside of the station? I.e. if you are 1 km underwater and the pressure outside is x (and would crush you) would that be the same as in the moon pool?
Or am I completely missing something here?!
If you are in a submersed station with a moon pool, is the water pressure on the surface of the moon pool the same as outside of the station? I.e. if you are 1 km underwater and the pressure outside is x (and would crush you) would that be the same as in the moon pool?
Or am I completely missing something here?!
Murray993 said:
wouldn't the pressure in the room need to equal the water pressure in order to stop the water flooding in. In that case u'd need to be in a pressure suit before you enter the room containing the pool (if the pool is open to the ocean).
Bingo. The air pressure would be in the hundreds of PSI, or more, depending on the depth of the station.Zod said:
so presumably, the Abyss was (unsurprisingly) a load of b
ks, becasue you would have needed an airlock betwee the moonpool chamber and the rest of the base at the very least.
The air in the whole structure would be at the surrounding water pressure so an airlock wouldn't be needed. If there was an airlock it would mean that they would need to go through decompression each time, negating the idea of a sub-sea structure. ks, becasue you would have needed an airlock betwee the moonpool chamber and the rest of the base at the very least.Edited by Gareth79 on Monday 20th July 16:15
Zod said:
so presumably, the Abyss was (unsurprisingly) a load of bks, becasue you would have needed an airlock betwee the moonpool chamber and the rest of the base at the very least.
I think the craft in The Abyss was completely underwater like a sub, so it wouldn't need one as the whole place would have to be pressurised.ks, becasue you would have needed an airlock betwee the moonpool chamber and the rest of the base at the very least.Wouldn't the amount of pressure needed to keep the water out depend on how deep they're supposed to have been? I'm not sure if you ever know that in the film.
Zod said:
so presumably, the Abyss was (unsurprisingly) a load of bks, becasue you would have needed an airlock betwee the moonpool chamber and the rest of the base at the very least.
Unless the whole base was pressurised, which would make a great deal of sense as then you would not need to build the thing out of incredibly thick steel since the atmosphere inside would be at very nearly the same pressure as the sea around it. The added bonus would be that if the base was holed for whatever reason the worse that would happen would be the air leaking out slowly - lots of time to fix it.ks, becasue you would have needed an airlock betwee the moonpool chamber and the rest of the base at the very least.The trade-off is that, on returning to the surface, you need to go through very long decompression (weeks perhaps) to avoid the bends.
You wouldn't actually use 'air' as we'd know it, it'd be some kind of blend of helium, nitrogen and oxygen more suited to high pressurisation.
Very interesting stuff on 'sealab' if you google it.
You can stay in a hotel underwater if you like:
http://www.jul.com/frontpage.html
It's not that deep, but it is pressurised enough to allow for a moon pool.
?
http://www.jul.com/frontpage.html
It's not that deep, but it is pressurised enough to allow for a moon pool.
Zod said:
so presumably, the Abyss was (unsurprisingly) a load of bks, becasue you would have needed an airlock betwee the moonpool chamber and the rest of the base at the very least.
So, it's got aliens, who control water to make "air probes" that can explore the station, and a diver reaching huge depths by breathing liquid air, yet you are concerned that the moon pool airlock may have been slightly far fetched ks, becasue you would have needed an airlock betwee the moonpool chamber and the rest of the base at the very least.?Gareth79 said:
Zod said:
so presumably, the Abyss was (unsurprisingly) a load of bks, becasue you would have needed an airlock betwee the moonpool chamber and the rest of the base at the very least.
The air in the whole structure would be at the surrounding water pressure so an airlock wouldn't be needed. If there was an airlock it would mean that they would need to go through decompression each time, negating the idea of a sub-sea structure. ks, becasue you would have needed an airlock betwee the moonpool chamber and the rest of the base at the very least.Edited by Gareth79 on Monday 20th July 16:15
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