I suspect that not one in a thousand Americans is familiar with the work of the National Advisory Committee on Aeronautics, and that is truly a tragedy, because the committee had an outsized effect that played a critical role in winning the Second World War, and shepherding the US into the Jet Age.
The first class of nuclear submarines were a learning experience for the Soviet Navy. The November class boats experienced numerous difficulties and accidents, culminating in what has been described as a potential “Underwater Chernobyl."