Where is the marina treanch?

Answer 1

First of all it"s the Marianas Trench, not marina Trench. Marina trench sounds like a dry-dock basin! giving the various meanings of Marina. The Marianas trench is the deepest spot in the Pacific ocean. the Bathyscaphe Trieste l went down there in l960 and later in l962 still a manned submarine depth record. Sub was crewed by Jacques Piccard(son of the inventor, who was a Swiss!!) and a Lt. Donald Walsh of the US Navy, obviously a submarine officer. The vessel was jointly made by the Terni naval shipyard in Italy and the actual diving-bell like crew capsule, subjected to the highest pressure strains, (at 36,000 feet down!) was fabricated by the German Krupp industries, familiar to many as a Gun manufacturer ( Big Berthas). So the Nato powers got together in a joint venture- Italy , USA, and Germany, down you go!