631–640 of 649 posts
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is it really? the wikipedia article says it was first broadcast in 1981
It was donated to the public domain by the creators. If you follow the link to IA it's explained there.
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It was donated to the public domain by the creators. If you follow the link to IA it's explained there.
I don't see it I'm afraid. Yes, it says it's CC0, but that doesn't mean it's actually true...
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They have some type of radio link that works at depth for simple texts messages, but they have to be right above it.
That doesn't seem right, do you have any source? VLF wouldn't stand a chance of reaching that deep and ELF requires extremely large antenna to work. More likely they were using some form of underwater acoustic communication, sending and receiving data through sound instead of radio waves.
This appears to be the vessel in question: https://oceangate.com/our-subs/titan-submersible.html Pressure hull made from titanium and carbon fiber, capable of diving to 4000m (13,000 ft). I recall that one reason SpaceX switched from carbon fiber to stainless steel pressure vessels (fuel tanks) was the difficulty of detecting structural flaws. Can any engineers comment on whether that task is easier for a vessel expo…
The thicker the material used for the vessel the more pressure It will take That's obvious & simple so far
They used carbon fiber and titanium fiber probably interwoven and then glued there is a procedure for this
There's also a nominal, working, and burst value after these vessels are manufactured. Basically established by testing There was no testing on this vehicle non-destructive or destructive That was bypassed
Also I believed it was planned to be a 7-in thick vessel this one for some reason was 5-in thick
Two of the employees from oceangate were sued and dismissed for making issues of the safety of this vessel particularly about the thickness and particularly about the gluing process
(That isn't even that strange in any industry where there is engineers) Especially in R&D situation like this
So you have a material which the mechanics of that material are not fully understood
Being used to manufacture a vessel that's going to withstand unimaginable pressures because of its size every square inch of that vehicle had 4,000 per square inch on it
It's of a certain configuration (shape) Needs to be tested
The other thing I would bring up is I wonder if the gasket failed they're almost at full depth Maybe they didn't change the gasket or they change the gasket and it was of a different physical characteristics
The gasket is used on the hatch which was bolted shut The gasket surface design is very critical at that pressure also
I think you can rule out fatigue because carbon fiber and titanium for that matter have really high fatigue resistance
LJK
This appears to be the vessel in question: https://oceangate.com/our-subs/titan-submersible.html Pressure hull made from titanium and carbon fiber, capable of diving to 4000m (13,000 ft). I recall that one reason SpaceX switched from carbon fiber to stainless steel pressure vessels (fuel tanks) was the difficulty of detecting structural flaws. Can any engineers comment on whether that task is easier for a vessel expo…
(Skip to 18:05 for Rush's explanation of the sub) https://www.youtube.com/watch?v=uD5SUDFE6CA
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David Pogue, who traveled to the Titanic with OceanGate last summer, has said that he was on the control ship when a previous sub was "lost for about 5 hours". Source: https://twitter.com/Pogue/status/1670835763536183297
Jesus. This sounds like this group is just taking billionaires' money while running a death trap. How the hell do you lose your sub for five hours? This should have stopped all trips until they fixed this problem through a combination of technical and procedural changes.
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What’s wrong with game controllers? They are built to be ergonomic and in use for extended periods of time. Also a lot of people are already familiar with how to use them. Not saying we should replace every bespoke interface with a game controller, but using a game controller isn’t necessarily bad either.
Good point. Might be nice to have some redundancy if a game controller is used for a mission critical component, but apparently, the US military approves. https://www.theverge.com/2017/9/19/16333376/us-navy-military...
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And then JJ Abrams put Enterprise underwater, ostensibly to hide it from a stone age civilization. Such a hack. Ruined both of the biggest and beloved scifi franchisee. smh
I still have problems with Voyager and Enterprise landing at all. Besides the maxim that everything is airdroppable at least once.
This appears to be the vessel in question: https://oceangate.com/our-subs/titan-submersible.html Pressure hull made from titanium and carbon fiber, capable of diving to 4000m (13,000 ft). I recall that one reason SpaceX switched from carbon fiber to stainless steel pressure vessels (fuel tanks) was the difficulty of detecting structural flaws. Can any engineers comment on whether that task is easier for a vessel expo…
Carbon fibers are strong in tension. That's why it is good for pressure vessels that are trying explode. Your wrap the fibers on the outside of the pressure boundary. Same concept that you can only pull on a rope, not push it. I'd be interested to see how they are using carbon fibers in compressive applications like deep sea vessels. Is that more of a marketing thing? "Carbon fiber" sounds sexy, so we'll advertise th…
This appears to be the vessel in question: https://oceangate.com/our-subs/titan-submersible.html Pressure hull made from titanium and carbon fiber, capable of diving to 4000m (13,000 ft). I recall that one reason SpaceX switched from carbon fiber to stainless steel pressure vessels (fuel tanks) was the difficulty of detecting structural flaws. Can any engineers comment on whether that task is easier for a vessel expo…
Carbon fibers are strong in tension. That's why it is good for pressure vessels that are trying explode. Your wrap the fibers on the outside of the pressure boundary. Same concept that you can only pull on a rope, not push it. I'd be interested to see how they are using carbon fibers in compressive applications like deep sea vessels. Is that more of a marketing thing? "Carbon fiber" sounds sexy, so we'll advertise th…