The Titanic

Traditional subs can be opened from the inside. They have them spinney handle thingys. Sorry for the technical terminology.

I’m no expert but on a sub you can just build a door that’s 6 inches thick and slap a valve on it so you don’t have to bolt/unbolt it every time - makes it logistically easier but nobody would ever actually open the door while under water.

Submersibles don’t have that structural luxury, doors just become vulnerabilities to high pressure.
 
I mean, of course it can’t be opened from the inside when doing so would immediately kill everybody on board. Opening it from the inside serves no useful function. It’d be like having a handbrake on a spaceship.
More the fact that you're sealed into something like a prisoner. Besides, couldn't such a vessel be opened from the inside at a safer depth? They lost comms not long after they began the descent.
 
I’m no expert but on a sub you can just build a door that’s 6 inches thick and slap a valve on it so you don’t have to bolt/unbolt it every time - makes it logistically easier but nobody would ever actually open the door while under water.

Submersibles don’t have that structural luxury, doors just become vulnerabilities to high pressure.
Having a door that opens from the inside on an aircraft is fine because the pressure inside the aircraft at altitude is much higher than the the outside pressure which seals the door shut. It takes tonnes of force to open an aircraft door at 40,000ft.

Under the sea the pressure is much higher than at sea level, so any door would be designed to open outwards, and without an airlock would be impossible to open deep underwater without causing a catastrophic failure to the structure of the vessel itself and the instant death of everyone inside.
 
I mean, of course it can’t be opened from the inside when doing so would immediately kill everybody on board. Opening it from the inside serves no useful function. It’d be like having a handbrake on a spaceship.
You're telling me space ships can't do doughnuts and handbrake turns? Dreams ruined...
 
As a reformed caver/potholer, you'll never understand that sense of exploration unless you've ever been into it yourself. Given affordable chance would I like to see the world's most famous ship wreck? Absolutely.
Can I just say, as someone who has tried potholing you're fucking mental. :-)

Dont think it helped that the first time I went down one it was a Grade 4 and it put me off for life.
 
A submersible operated with a game console controller, the people that got into that death trap must have had more money than sense.
This is my thinking. I absolutely understand why someone would want to undertake such an adventure, I would too. But having had a look at the technology and the size of the thing I wouldn't step aboard in a month of Sundays. It hardly scream safe or remotely comfortable to me, incredibly poor judgement from those on board.
 
This is my thinking. I absolutely understand why someone would want to undertake such an adventure, I would too. But having had a look at the technology and the size of the thing I wouldn't step aboard in a month of Sundays. It hardly scream safe or remotely comfortable to me, incredibly poor judgement from those on board.
Yes I would love to see the wreck but the vehicle used would have to be approved by James Cameron before I stepped into it.
 

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