High school kid builds a fully-functional one-man submarine

DamnGeeky: Justin Beckerman, an 18-year-old student at Mendham High School in New Jersey has built himself a fully-functional one-man submarine, which he has taken up to six feet underwater. Justin has been building miniature jet-engines, remote controlled cars and vacuums etc from household scrap since childhood, and his fascination for subs has got him to attempt it twice before, but this one is perhaps his best attempt at it.

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