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Tragic Titan submersible’s $62 SanDisk memory card found undamaged at wreckage site (www.tomshardware.com)
submitted 10 months ago by to c/technology@lemmy.world
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cross-posted from: https://piefed.social/c/datahoarder/p/1386675/tragic-titan-submersibles-62-sandisk-memory-card-found-undamaged-at-wreckage-site

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[+] -6 points 10 months ago (1 child)

Nobody said GPS (except for you). Location data does not mean GPS.

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  • [–] 5 points 10 months ago* (3 children)

    Ok, so tell me how you are going to get a location fix underwater, in the dark, with no landmarks to orient yourself, in constantly shifting currents?

    Even the Navy's most advanced nuclear submarines have to surface to get their location. This thing was a carbon fiber tube with an Xbox controller and an idiot designer.

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  • [–] -5 points 10 months ago (2 children)

    You use your starting point as a baseline and keep track of the movement of the craft.

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  • [–] 5 points 10 months ago* (last edited 10 months ago)

    Dead reckoning which is usually hit or miss on the surface but better than nothing. Probably worse under the water. It's why all these subs that dive to Titanic have to drop down until they hit the floor and then swim around until they find a landmark that points to the ship. They only have a rough idea of where they are when they get to the bottom.

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