this post was submitted on 10 Aug 2024
417 points (97.5% liked)

Technology

59549 readers
3244 users here now

This is a most excellent place for technology news and articles.


Our Rules


  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots


founded 1 year ago
MODERATORS
 
you are viewing a single comment's thread
view the rest of the comments
[–] phoenixz@lemmy.ca 16 points 3 months ago (2 children)

... How do you propose to emergency exit that sub at 1000 meters depth?

I'd say the bigger issue is that he used a carbon fibre body, a material which has great tensile Strength but sucks for this.

They way bigger issue than that is that he glued the metal rear section to the carbon fiber body. Both materials expand and contract differently under pressure, which is not what you want at 3 kilometer deep pressures, especially with multiple descends and ascends. That glue could never keep those materials together, that alone was a disaster waiting to happen

[–] rottingleaf@lemmy.world 5 points 3 months ago

They way bigger issue than that is that he glued the metal rear section to the carbon fiber body. Both materials expand and contract differently under pressure, which is not what you want at 3 kilometer deep pressures, especially with multiple descends and ascends. That glue could never keep those materials together, that alone was a disaster waiting to happen

And people usually consider this when building a barn, doing plumbing in a house. The scariest thing is how can someone who doesn't understand this make a submarine. Real Crassus vibes.

[–] Thetimefarm@lemm.ee 2 points 3 months ago (1 children)

The problem was that if they surfaced away from the support vessel, there was no way to open it to get fresh air. So you could still run out of oxygen and die while floating around on the surface waiting to be found.

[–] phoenixz@lemmy.ca 1 points 3 months ago

Yeah that sounds like less of an issue to me, honestly. That support vessel van be there quick enough, send in airplanes, whatever. You can make a more intricate inside and outside locking mechanism but that'll make your entire submarine a whole lot more expensive