Timeline Of Diving Technology
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overboard. The Persians could not find him in the water and presumed he had drowned. Scyllis surfaced at night and made his way among all the ships in Xerxes’s fleet, cutting each ship loose from its moorings; he used a hollow reed as snorkel to remain unobserved. Then he swam nine miles (15 kilometers) to rejoin the Greeks off Cape Artemisium.
The use of diving bells is recorded by the Greek philosopher Aristotle in the 4th century BC: “…they enable the divers to respire equally well by letting down a cauldron, for this does not fill with water, but retains the air, for it is forced straight down into the water.”
1300 or earlier: Persian divers were using diving goggles with windows made of the polished outer layer of tortoiseshell.
15th century: Leonardo da Vinci made the first known mention
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