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Duke University Biomedical Engineering Ph.D. Rachel Lance evaluated several prevailing theories for why the Confederate combat submarine HL Hunley and its 8-man crew vanished after sinking the Union battleship Housatonic in Charleston Bay on Feb. 17, 1864. After extensive scale-model testing with air cannons and black powder explosions, Lance says the men were subjected to "blast lung" by their own torpedo and died instantaneously.
Music: Plantation by Audionautix is licensed under a Creative Commons Attribution license (creativecommons.org/licenses/...)
Artist: audionautix.com/