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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.
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.
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 ...
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.
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.
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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