this post was submitted on 20 Jun 2023
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Explain Like I'm Five

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Why is it so hard to find the lost Titanic tourism submarine? (feddit.de)
submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/explainlikeimfive
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(inspired by a question on reddit, I'll post a reply too)

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[โ€“] 3rdBlueWizard 7 points 1 year ago (1 children)

The sub apparently had a regular "I am ok" ping as well as a way to transmit text messages. How did those work? And if they worked, why couldn't they do more?

[โ€“] [email protected] 1 points 1 year ago

I haven't found an explanation, but photos show a trailing cable. The only two options I can think of that could work are

  • cable (probably fiber, either way, a physical connection either to the mothership or a buoy)
  • sonar (you can modulate data onto a sonar ping)

The reason why they stopped communicating is now (likely) known - looks like the sub imploded.