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Tragic Titan submersible’s $62 SanDisk memory card found undamaged at wreckage site
(www.tomshardware.com)
This is a most excellent place for technology news and articles.
being a cylinder there was also greater surface area for pressure points too. i read the articles after it imploded, he reused the sub, after it already has been too deep.
It is also inherently weak. With a sphere it is all compression. With a cylinder you get compression and tension.