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Banging sounds heard during Titan search, according to internal government memo

cnn.com

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Re: Banging sounds heard during Titan search, according to internal government memo

#61

Post by silisili »

evgen wrote: post #58
silisili wrote: post #56

Earlier quoted context omitted.

well sure, that was kids. We only remember that kids were trapped, barely if at all the adults involved. If that cave was just full of random divers, we'd probably not heard of that one either.

And the Chilean miners trapped for a couple of months back in 2010? The fact that all I need to do to remind you of the event is mention 'Chilean miners' should be sufficient evidence to prove an exception to your proposed rule.

I'll half concede, fair point.

It was a lot of people (more than 30), and IMO wasn't covered as heavily as say, the Thai cave or this may be.

There is definitely a disaster angle news latch onto, but it's pretty rare for a group of adults this small. There are small plane crashes with more fatalities multiple times a year...

And it can't be the 'missing people' angle, there are like 400k kids every year reported missing with less than milk carton coverage...

Re: Banging sounds heard during Titan search, according to internal government memo

#62

Post by moltar »

totetsu wrote: post #33

What is it about this type of story that is so attention grabbing? Kids trapped in cave, Plane missing in jungle, etc etc. Is there a name for this? Pragmatically speaking, this is of little consequence to most people, there are greater human tragedies going on, there are more catastrophic engineering failures happening, more egregious negligence,.. something about the unknown element of it.

Overt misdirection?

Brown noise?

Re: Banging sounds heard during Titan search, according to internal government memo

#63

Post by red_trumpet »

totetsu wrote: post #33

What is it about this type of story that is so attention grabbing? Kids trapped in cave, Plane missing in jungle, etc etc. Is there a name for this? Pragmatically speaking, this is of little consequence to most people, there are greater human tragedies going on, there are more catastrophic engineering failures happening, more egregious negligence,.. something about the unknown element of it.

Isn't that like basic story telling? Someone goes on an adventure, then a catastrophe happens and now we are at the most thrilling part: will they make it out alive? And this is a real story, playing out in real time.

Re: Banging sounds heard during Titan search, according to internal government memo

#64

Post by rasz »

HWR_14 wrote: post #9
AustinDev wrote: post #3

Wow, this is the worst possible situation, if true. They're likely to run out of breathable air long before they can be rescued. I'm hoping they make it out but, I personally would have opted for an implosion if I was in the same situation. The suffering they're enduring, if actually alive, is pretty rare. I can't imagine what is potentially going through their heads. If they are alive the 8 hour delay from Oceangate…

They have another ~30 hours of air. The biggest hope is that they are not terribly deep trapped near the surface and can be located in that time.

Much more if cannibalism set in.

Re: Banging sounds heard during Titan search, according to internal government memo

#65

Post by rasz »

gene91 wrote: post #24
mpreda wrote: post #23

I wonder why the submersible was not equipped with redundant "self surface" systems. I imagine the overall density of this submersible to be close to that of water. Such that dropping some amount of ballast (like the metallic rails underneath) may lighten it enough to self-surface. In addition, some emergency "baloons" may be fitted, inflatable in an emergency by CO2 capsules to resurface. And an emergency system to…

Not sure whether it’s applicable here. But when learning scuba diving, we were taught (or rather reminded of, from middle school physics) that a balloon would become bigger as one gets closer to the surface. A balloon 90m under water will be 10X the size when it’s at surface. Therefore, using a balloon for emergency surfacing will lead to a monotonically increasing acceleration rate (which means you’ll going be too f…

Use a bell shaped contraption instead of a balloon.

Re: Banging sounds heard during Titan search, according to internal government memo

#68

Post by numpad0 »

silisili wrote: post #40
totetsu wrote: post #33

What is it about this type of story that is so attention grabbing? Kids trapped in cave, Plane missing in jungle, etc etc. Is there a name for this? Pragmatically speaking, this is of little consequence to most people, there are greater human tragedies going on, there are more catastrophic engineering failures happening, more egregious negligence,.. something about the unknown element of it.

In this case, it's because everyone on board was filthy rich. If it were me or you, we'd be sleeping with the fishes without mention.

None of Chillean miners were filthy rich.

Re: Banging sounds heard during Titan search, according to internal government memo

#69

Post by ak_111 »

nologic01 wrote: post #42

If they are indeed banging they should use morse code to communicate something

Interesting idea, I actually can't think of anything they are able to communicate that would aid in their rescue. They could probably signal if they are close to the surface, they won't be able to provide much more information on their exact location I think.

Re: Banging sounds heard during Titan search, according to internal government memo

#70

Post by Mandatum »

yayitswei wrote: post #50
jamesralph8555 wrote: post #13

Earlier quoted context omitted.

Its not the pressure, but the fact water blocks radio waves. Submarines can’t get GPS signals or transmit their location. Submarines have to rely on other means such as IMUs to track their own location.

What about a signal flare that floats to the surface?

I believe at a certain depth some things compress, density increases, buoyancy becomes negative - and they sink.
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