'To withstand the pressure over 14,000 feet down, the submersible Alvin's hull is this metal, about 2 inches thick'
titanium
METALS: To withstand the pressure over 14,000 feet down, the submersible Alvins hull is this metal, about 2 inches thick
To withstand the pressure over 14,000 feet down, the submersible Alvin's hull is this metal, about 2 inches thick
To withstand the pressure over 14,000 feet down, the submersible Alvin's hull is this metal, about 2 inches thick
METALS
titanium
METALS