Thanks to World War I and the advent of the submarine, U.S. naval divers mastered how to make and survive deep ocean dives. But by the 1930s, they were still trying to figure out how to successfully rescue survivors from sunken vessels. They finally
Thanks to World War I and the advent of the submarine, U.S. naval divers mastered how to make and survive deep ocean dives. But by the 1930s, they were still trying to figure out how to successfully rescue survivors from sunken vessels. They finally