Richard Branson ‘s not the one one desirous to explore that other 70 percent of the arena. Triton Submarines has designed a 3-passenger sub capable of dive 36,000 feet, reaching the deepest a part of the sector’s oceans. And while Sir Richard envisions a spaceship-like craft, Triton’s design evokes old skool bathyspheres: it’s a pitcher globe. In fact, water pressure poses a significant engineering challenge after you descend seven miles below the outside — the last manned sub to succeed in that depth had just a single, small window made from plexiglass. The present design uses borosilicate glass (like those transparent displays we, um, saw through some time back) that really grows stronger as depth pressure increases; it took eight months of careful heating and cooling to provide. Assuming the glass holds, this will take about 75 minutes to succeed in the ground of the sea. Anyone considering a test run should have a look at the PR video after the break, showing Triton’s other submarines in action.
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