101–110 of 179 posts
I wonder if an active sonar array would be desirable. It would of course be easy to locate the beacons but they would probably be relatively cheap. Also, that much sonar noise would probably be bad for marine life. Would it give us capabilities we currently do not have?
> Instead, the battle of submarine silence has mostly revolved around obscure technical problems of fluid dynamics, since one of the loudest noises made by submarines is the cavitation around the screw. Cavitation is loud, but usually only happens if they're running full out. What they're really listening for now are reactor plant noises. > I don't know if this is true today, but at least years ago the low-noise desi…
Huh, I wouldn't classify any of those propulsion trains as pump-jets (and I never heard them called that aboard said vessels ;-P), but wikipedia seems to agree with you. They're ducted propulsors, a direct evolution of the classic submarine prop that integrates a pressure-increasing shroud and stator vane assembly. A "pump jet" classically involves some sort of centrifugal pump element or at least a vectoring mechani…
An excellent read but one thing caught my attention: > The Navy did not withhold information on the detection for four days out of some concern for secrecy. I think it's more likely than not that the statement is correct, but what gives the author the authority to make the claim so definitively? The author's bio indicates he's a consultant and there is no indication of direct involvement in this or any other SAR effo…
What could also be possible is that US has improved its sensory technology, and while its known that the US is capable of listening to the sea, they may have some new edge they want to keep obscured from the likes of russia.
I’m just some guy, but it struck me as a possible way for the US to flex on the russians, especially right now when Putin is threatening to use nukes, and the US, by the book wouldnt want to because the US may not know where all of russias nuclear subs are supposed to be. It was a great opportunity for the US military apparatus to turn on a sort of fog of war machine… for all we know intelligence may have told the likes of James Cameron and Rob Ballard to say they got early news from their navy friends.
An almost mandatory entertaining article, whenever topics about cables, ocean floor, submarines come up: https://www.wired.com/1996/12/ffglass/ "Mother Earth, Mother Board" (stories about laying undersea cable and the history of wiring the Earth up" (or unpaywalled: https://archive.is/ICkHe )
Reminds me of the intro to The Expanse, where they wire up some celestial bodies as well:
https://www.youtube.com/watch?v=5Y4wuVfV5G4
The song also gives me the chills.
> this writing is so clear and good > Today, IUSS automatically detects and classifies both submarines and wales. Do the British know ?
I made this point several times on social media during the Titan incident but it fell on deaf ears; it seemed crazy to me that people were accusing the US Navy of some nefarious cover-up regarding possible acoustic detection of implosion.
Anyone who’s ever worked with any type of signal analysis would be aware of the huge uncertainty involved; the idea that we could positively identify the specific destruction of the Titan remotely was ludicrous on its face.
That aside, even if the Navy was 100% certain, would you want the search for your loved ones called off because someone heard a noise? Of course not. You search for people missing at sea until you find them or until the point where any reasonable hope of finding them is gone. That applies to billionaires as well as anyone else.