Still vivid in the memory of most Americans is the tragic 1927 sinking of the submarine 54, whose trapped crew died while a rescue fleet vainly tried to raise the ship in no feet of water off Provincetown. Rescue might have been possible if there had been some quick way to cut an escape hatch in the ship. Now such a device has at last been developed. For more than a year the U.S. Navy has been performing wonders in rescue and harbor-clearing work by means of an amazing underwater torch which cuts thick...
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