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They're probably fine... right?
(lemmy.world)
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this post was submitted on 08 Jan 2025
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NonCredibleDefense
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Can you please explain to me, a simple person with no knowledge in that sort of thing?
I'm assuming the sonar emits a loud "ping" sound and the divers would probably deafened by it?
Edit: Holy shit ......
Thanks for all the great replies.
But holy shit ...
Military sonars are so loud that if you happened to be idly floating near one (let's say 500 meters away) as it does one of its weakest pings, your entire body would cavitate into pink mist; it would rupture every organ in your body instantly, all of your bones would fracture in place and all of your blood would boil from the sonars ping causing rapid pressure changes right in front of whatever is supposed to remain of your face.
Imagine standing next to a hundred grenades as they all simultaneously explode, but also pretend you are spared from the heat wave of the explosion and not the blast wave.
Wait a minute
Have we been pulping marine wildlife this whole time? I just connected the dots there
There's two types of military SONAR: active and passive. Active SONAR is using pings and listening for the echo, but it's not very commonly used by submarines. Passive sonar is just listening out for engine noise from ships and prop noise from other submarines. Warships use active SONAR more because they're already noisy and so if they think an enemy submarine is in the area they'll use it to try and locate, but in peacetime it's mostly reserved for training exercises. It's still terrible for wildlife, even if they don't die it's very distressing and disorientating but it's not constantly scanning like a RADAR.