there are so many variables at that depth. doing searches, the sonar sound images. down 200 meters the sound that penetrates is minimal compared to the sonar image sounds they are sending down. it s like a ping-pong ball hitting a table. going down 1,000 meters where the titanic sits is like the worst area to penetrate. in fact during the cold war submarines hid there because it s so hard to locate and identify and track any vessel in that area. surface searches with sonar and other technology, that makes it very difficult. they need to track and identify.
Mit Strohhut und Gitarre
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Doppelausstellung auf der Museumsinsel: Das Leben in der Antike war voller Musik - Kultur
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