What was the name of the man who played a key role in the development of the reactor the powered the first submarine to complete a submerged transit of the North Pole?
Zalman Shapiro: Zalman Mordecai Shapiro (12 May 1920 – 16 July 2016) was an American chemist and inventor. Zalman Shapiro:  He received 15 patents, including a 2009 patent on a process to make commercial production of diamonds cheaper, and played a key role in the development of the reactor that powered the world's first nuclear powered submarine, the "Nautilus".
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