61–70 of 85 posts
This[0] youtube channel is quite good at explaining how subs work [0] https://www.youtube.com/c/JiveTurkeyCrew
I've heard the sonar ping from a submarine is so powerful that it will kill you if your a diver near the sonar dome.
Oil and Gas exploration in the sea routinely uses extremely loud sounds, because explosive geosensing. Its screwing up cetacean migration and mating. It travels miles and miles.
Articles like this leave a bad taste in my mouth. They venerate the subject and participants involved and leave out the vast amount of detrimental effects they cause. Whales, other marine mammals, and other wildlife are affected by these systems, and they are never considered. The Navy is currently still trying to increase its weapons testing off the coast of the Pacific Northwest, bringing further harm to the alread…
Somewhat related. I went to the Oregon Museum of Science and Industry (OMSI) in Portland last fall and did a tour of their submarine, the USS Blueback. Our tour guide was a retired Cold War-era submariner and he was fantastic . He gave us tons and tons of details about what life and working on an active sub was actually like. It felt like being there, and you could tell he delighted in being able to share his past wi…
Obviously, being a skilled sonarman would seem require a good physical sense of hearing (frequency range, etc.), but as as the article mentions, the ability to recognize patterns is also important. Have there been any studies or analyses to see if there's also a correlation between skill at, say, music (relative pitch, etc.) or language (detecting subtle differences in accents, etc.) and sonar skill?
I'm not normally one to promote Hollywood but the film Greyhound (2020) with Tom Hanks does an _excellent_ portrayal of this technology (albeit slightly more primitive) in fighting German U-Boats in WW2. Well worth a watch if this interests you.
specifically the ones from this image https://www.thedrive.com/content-b/message-editor%2F15972209...
During the holidays we'd pump Christmas music through the sensors. We could do this since that's what the raw data is anyway -- sound. Made for interesting sonar displays as well as background music.
Earlier quoted context omitted.
The book by C.S. Forester that the movie is based on is even more realistic, though the movie is pretty good. To really dig into it, Samuel Eliot Morison's magisterial History of Naval Operations in World War II does a good job talking through the development of both the technology and organization of naval operations. Not all communication was by morse code. We did use ship to ship voice radio, but it was a tradeoff…
To really dig into it, Samuel Eliot Morison's magisterial History of Naval Operations in World War II does a good job talking through the development of both the technology and organization of naval operations. Man, that looks like a hard series of books to actually get a hold of. Either spending multiple hundreds of dollars for a used set, or struggle to find individual copies for $15+ each (a quick google search se…
I'm not normally one to promote Hollywood but the film Greyhound (2020) with Tom Hanks does an _excellent_ portrayal of this technology (albeit slightly more primitive) in fighting German U-Boats in WW2. Well worth a watch if this interests you.
I personally haven't seen Greyhound, but if you found this article interesting, the 2019 French film Le Chant du Loup is entirely about sonar crews on modern submarines. It's definitely a fun movie that seems (to an uninitiated) pretty technically accurate. https://www.imdb.com/title/tt7458762/
