Who invented scuba technology in 1943?
1943. French naval officer Jacques-Yves Cousteau and Air Liquide engineer Emile Gagnan develop an autonomous diving system with a demand regulator, the scaphandre autonome. It would soon be called “Aqua-Lung,” after Cousteau coined the word for English-speaking countries.
Who invented air tanks?
15th century: Leonardo da Vinci made the first known mention of air tanks in Italy: he wrote in his Atlantic Codex (Biblioteca Ambrosiana, Milan) that systems were used at that time to artificially breathe under water, but he did not explain them in detail.