5 ms·

235db! Apparently also kills wales and dolphins. https://physics.stackexchange.com/questions/93222/could-submarine-sonar-kill-a-diver https://physics.stackexch

• VBprogrammer 6y ago
  The only saving grace is that they only use it as a last resort since sending out that kind of noise would let everyone in that hemisphere know exactly where you are.
• Anechoic 6y ago
  Keep in mind that's likely not related to the dB sound pressure level in air that we're all familiar with. dB is a logarithmic ratio to pressure to a reference. In air, that reference is 20µPa, acoustic pressure in water typically uses a different reference (1µPa). There is also an adjustment of 36 dB to account for the higher impedance of water. So 235 dB in water is roughly 173 dB SPL -- still loud, but many orders of magnitude lower. [0] https://fas.org/man/dod-101/sys/ship/acoustics.htm https://fas.org/man/dod-101/sys/ship/acoustics.htm
  • GCPGCP 6y ago
    This is what you can expect https://www.youtube.com/watch?v=sCmyZYYR7_s&t=90s https://www.youtube.com/watch?v=sCmyZYYR7_s&t=90s This diver was near a sub base for training.
    • MrBuddyCasino 6y ago
      Comments say this was very likely not a sub‘s sonar.