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Paul Bert from France and John Scott Haldane from Scotland, conducted scientific research on water pressure and our bodies limits concerning safe compressed air diving. At the same time, new technologies allowed for the development of air pumps, scuba regulators and other diving gear New arrival North Face 2 in 1 Gore Tex Jacket Women Green outlet shop equipment. Throughout the 20th century, inventions in diving gear equipment improved. Swim fins, masks and other scuba gear became available. In the 1950's the public began to take interest in scuba diving. Scuba gear shops began to open up and the first wet suit was introduced. Today, scuba diving is accessible to almost anyone with only a modest investment in equipment. Anywhere you want to dive you can usually find a dive shop online to buy like in Joe Diver America. Then, in 1960 the National Association of Underwater Instructors (NASD) was formed to oversee the safety and certification requirements for scuba divers.