Kit Rhett Aultman@meohw @rooster So, first lesson here...I need to type slower when using my thumbs. And what I meant is that the most impressive features of a submarine are all about how they know where they are and where other things are when they're at depth. You can't really "see" down there. You don't have GPS. Active SONAR gives away your position so you try to avoid it. Communication is completely different.
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