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  2. Snorkel (swimming) - Wikipedia

    en.wikipedia.org/wiki/Snorkel_(swimming)

    Snorkels are attached to sockets on the top or the sides of the mask. The skirt of the diving mask attached to the snorkel is made of rubber, a synthetic elastomer, or latterly a silicone elastomer. First-generation snorkel masks have a single oval, round or rounded triangular lens retained in a groove in the skirt of the mask by a metal clamp.

  3. Snorkeling - Wikipedia

    en.wikipedia.org/wiki/Snorkeling

    The first snorkel to be patented in 1938 was front-mounted, worn with the tube over the front of the face, and secured with a bracket to the diving mask. Front-mounted snorkels proved popular in European snorkeling until the late 1950s when side-mounted snorkels came into the ascendancy.

  4. History of submarines - Wikipedia

    en.wikipedia.org/wiki/History_of_submarines

    A 16th-century Islamic painting depicting Alexander the Great being lowered in a glass submersible. The concept of underwater transport has roots deep in antiquity. There are images of men using hollow sticks to breathe underwater for hunting at the temples at Thebes, and the first known military use occurred during the siege of Syracuse (415–413 BC), where divers cleared obstructions ...

  5. Timeline of diving technology - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_diving_technology

    The timeline of underwater diving technology is a chronological list of notable events in the history of the development of underwater diving equipment.With the partial exception of breath-hold diving, the development of underwater diving capacity, scope, and popularity, has been closely linked to available technology, and the physiological constraints of the underwater environment.

  6. Submarine snorkel - Wikipedia

    en.wikipedia.org/wiki/Submarine_snorkel

    The first Kriegsmarine boat to be fitted with a snorkel was U-58, which experimented with the equipment in the Baltic Sea during the summer of 1943. Operational use began in early 1944, and by June 1944 about half of the boats stationed in the French bases had snorkels fitted.

  7. History of scuba diving - Wikipedia

    en.wikipedia.org/wiki/History_of_scuba_diving

    Scuba diver of the late 1960s. The history of scuba diving is closely linked with the history of the equipment.By the turn of the twentieth century, two basic architectures for underwater breathing apparatus had been pioneered; open-circuit surface supplied equipment where the diver's exhaled gas is vented directly into the water, and closed-circuit breathing apparatus where the diver's carbon ...

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