Comments by "Mikko Rantalainen" (@MikkoRantalainen) on "How Sonar Works (Submarine Shadow Zone) - Smarter Every Day 249" video.

  1. I agree 100%. The fact that he was so sure that the non-classified manual contained the info that he offered to fetch the manual was great. As was the fact that his supervisor waited for the actual manual and verified it. I do software for living and I do verify code written by others even though I trust them because people make mistakes every now and then. It's not about not trusting their knowledge, it's about assuming they are human.
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  2. I assume that this question was part of the clipped away part but here it goes: Can they use external sound sources for passive sonar? Meaning, when they hear a ship with diesel engine, can they use the sound from the diesel engine to detect the enemy submarine nearby using passive sonar from the sound waves bouncing away from the enemy submarine? Also, considering that fighters now use AESA radars, can they do something similar with active or passive sonar today?
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  3. XO seemed to be pretty relaxed guy until your questions got closer to classified stuff. Then he went totally tight slipped.
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