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> I read somewhere once that a sensor, sonar or hydrophone, in UK waters could detect the sounds come from a New York harbour, which gives an insight into the d

> I read somewhere once that a sensor, sonar or hydrophone, in UK waters could detect the sounds come from a New York harbour, which gives an insight into the distance sounds can travel underwater, but considering all the noises that can be detected, having sound processing abilities, a little bit better than something like Dolby Noise Reduction, is the key part of the underwater arms race. In a typical attack sumbarine, a substantial amount of the ship's volume is dedicated to acoustic sensors: https://media.defenceindustrydaily.com/images/SHIP_SSN_Virginia_Block-III_Bow_Mods_lg.jpg https://media.defenceindustrydaily.com/images/SHIP_SSN_Virgi... This arms race is very old, and the state of the art even 20 years ago is pretty impressive.

darkclouds 3y ago
403 forbidden link with your link but the wayback machine lets me see it. https://web.archive.org/web/20230123071023/https://media.defenceindustrydaily.com/images/SHIP_SSN_Virginia_Block-III_Bow_Mods_lg.jpg https://web.archive.org/web/20230123071023/https://media.def... Detecting (background) radiation is the new state of the art and improvements in tech seen in peoples mobile phones. https://icecube.wisc.edu/news/press-releases/2017/11/first-look-at-how-earth-stops-high-energy-neutrinos-in-their-tracks/ https://icecube.wisc.edu/news/press-releases/2017/11/first-l... https://www.youtube.com/watch?v=XwKKOPd-5cU https://www.youtube.com/watch?v=XwKKOPd-5cU https://www.royalnavy.mod.uk/news-and-latest-activity/news/2023/may/26/20230526-royal-navy-and-imperial-college-london-team-up-to-work-on-cutting-edge-navigation-system https://www.royalnavy.mod.uk/news-and-latest-activity/news/2...