To withstand the pressure over 14,000 feet down, the submersible Alvin's hull is this metal, about 2 inches thick
[DOC] [TLE] Jeopary Questions page 1050 - WRITERS AT REST - TriviaBistro.com [PAR] METALS: To withstand the pressure over 14,000 feet down, the submersible 
Alvin's hull is this metal, about 2 inches thick  THE "M.E.