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- Timeline of invention (28171 bytes)
3: ...s ambiguity, the date of the first practical, fielded version of the invention is used here.
60: * [[Odometer]] : [[Ancient Rome|Rome]]: [[Archimedes]]?
66: ...ntury BC|200s BC]]: Compound [[pulley]]: [[Archimedes]]
74: * [[1st century]]: [[Rudder|Stern mounted rudder]] in [[History of China|China]]
83: * [[9th century|800s]]: [[Black powder|Gunpowder]] in [[History of China|China]] - Scuba diving (6342 bytes)
1: ...d '[[SCUBA]]' is an acronym for "Self Contained Underwater Breathing Apparatus", but it is grammatical...
3: ...y [[Jacques Cousteau]] and the "closed-circuit" [[rebreather]].
6: ...historian [[Herodotus]] (and quoted in numerous modern texts).
8: ...d he had drowned. Scyllis surfaced at night and made his way among all the ships in Xerxes's fleet, cu...
10: ...arine life. Until humans found a way to breathe underwater, however, each dive was necessarily short a... - Diving Glossary (6254 bytes)
4: ... keep track of the students, watch the gear, provide assistance when required.
5: ...hout stops, in a pattern resembling a spike, in order to retrieve items or due to poor [[buoyancy]] co...
8: ; [[Carbon monoxide poisoning]] : usually due to compressor maintenan...
9: ...: is due to incomplete elimination of carbon dioxide
11: ... the body causing symptoms ranging from rashes to death.
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