this post was submitted on 08 Jan 2025
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NonCredibleDefense

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[–] CommissarVulpin 120 points 2 weeks ago* (last edited 2 weeks ago) (3 children)

Wait a minute

Have we been pulping marine wildlife this whole time? I just connected the dots there

[–] recklessengagement 111 points 2 weeks ago

Yep. Its fucked. Literally drives whales to beach themselves.

https://en.m.wikipedia.org/wiki/Marine_mammals_and_sonar

[–] [email protected] 88 points 2 weeks ago (1 children)

Like 10,000 dolphins were killed in the black sea in 2022 because of sonar.

[–] TheBat 14 points 1 week ago (1 children)

That's fucked. Hopefully aliens do the same thing to Earth soon.👽

[–] [email protected] 55 points 1 week ago (1 children)

Hey, man. Why do you hate dolphins so much that you want aliens to kill another 10,000?

[–] TheBat 7 points 1 week ago (1 children)
[–] Anticorp 2 points 1 week ago (1 children)
[–] [email protected] 3 points 1 week ago

Aw, we don't have a Lemmy switchroo link tree yet.

[–] jagungal 48 points 2 weeks ago

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.