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Sep 16, 2021 at 10:29 comment added Confused Merlin Please dont forget, that decibel is a logarithmic scale with... a base of 10?. 188dB to 235dB in that case is a difference of 47dB, which is an increase of power of... 70.000 times? Just ballparking here... you will devaste any biological entities sense or hearing when it comes to close to that emitter. If they keep a some distance, they might be okay, but close quater battle against a Anti-Sub-Destroyer with directable emiters? Not a good idea.
Sep 15, 2021 at 19:53 comment added SpencerG @LokiRagnarok I think that is why the biology of the Kaiju is essential. It would be likely that the interior of the animals where the merfolk lived would be impervious to outside sonar waves and harmless to the inhabitants. They are likely safe inside.
Sep 15, 2021 at 19:24 comment added LokiRagnarok @SpencerG That covers the kaiju. What about the inhabitants?
Sep 15, 2021 at 15:00 comment added SpencerG A good point. But a counterpoint is that these things are 4 times the size of a blue whale which can emit calls at 188 Db at the highest. Something 4 times the size might not only be louder but also capable of hearing louder sounds without any harm.
Sep 15, 2021 at 10:17 history answered Confused Merlin CC BY-SA 4.0