flâneur

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The submarine is a surprisingly ancient technology—at least in its early, primitive forms. The idea is quite simple, that a well-enough-sealed boat ought to be able to submerge and resurface. It's the practicalities that make the whole thing difficult. It is generally considered that the US Civil War was the first use of submarines in combat; these were primitive machines with very limited operating endurance and navigational capabilities. These submarines were more like torpedoes: you pointed them in the right direction and hoped they went straight. The First World War benefited from tremendous advances in submarine technology. A number of experimental designs during the 19th century had built practical experience, especially in Germany, and the Germans apt use of the first modern "U-boats" had a significant military impact. British and US designs made similar advances, and submarine warfare was born. The chief advantage of the submarine is its ability to submerge and maneuver while h

extremely low frequencies 2026-05-09 The submarine is a surprisingly ancient technology—at least in its early, primitive forms. The idea is quite simple, that a well-enough-sealed boat ought to be able to submerge and resurface. It's the practicalities that make the whole thing difficult. It is generally considered that the US Civil War was the first use of submarines in combat; these were primitive machines with very limited operating endurance and navigational capabilities. These submarines were more like torpedoes: you pointed them in the right direction and hoped they went straight. The Fi

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