An anonymous reader writes "You may have heard that China sent a manned research sub down to the ocean deep this summer, marking a personal depth record of 5,000 meters (next year it will aim for a world record of 7,000 meters). Here's a story about the sub based on an interview with its designer in Wuxi, China. It's got some interesting new details: the designer had never actually seen a submersible before he set out to build the deepest diving research sub in the world; all the stuff he's built before has ended up in warehouses because the Chinese government only funded technological development, not use."
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