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2. Diving watch - Wikipedia

   en.wikipedia.org/wiki/Diving_watch

   NOT suitable for scuba diving. Diver's 100 m: Minimum ISO standard (ISO 6425) for scuba diving at depths NOT suitable for saturation diving. Diver's 100 m and 150 m watches are generally old(er) watches. Diver's 200 m or 300 m: Suitable for scuba diving at depths NOT suitable for saturation diving. Typical ratings for contemporary diver's watches.

3. Diving helmet - Wikipedia

   en.wikipedia.org/wiki/Diving_helmet

   US Navy Diver using Kirby Morgan 37 diving helmet [1]. A diving helmet is a rigid head enclosure with a breathing gas supply used in underwater diving. They are worn mainly by professional divers engaged in surface-supplied diving, though some models can be used with scuba equipment.

4. Dacor (scuba diving) - Wikipedia

   en.wikipedia.org/wiki/Dacor_(scuba_diving)

   DACOR Corporation was a former American manufacturer of scuba diving equipment which was founded in 1954 by Sam Davison Jr. in Evanston, Illinois as "The Davison Corporation". Since its foundation. DACOR was one of the five early American diving equipment manufacturers. Together, they were: DACOR; U.S. Divers (Now Aqua-Lung)

5. Navy diver (United States Navy) - Wikipedia

   en.wikipedia.org/wiki/Navy_diver_(United_States...

   Additionally, there is a scuba diver qualification primarily for those stationed on submarines to serve as sub divers in a limited capacity. Navy scuba divers are also trained at NDSTC at a 5-week course. Their duties consist primarily of conducting occasional inspections on the submarine they are stationed on. Scuba divers maintain their ...

6. Salvage diving - Wikipedia

   en.wikipedia.org/wiki/Salvage_diving

   US Navy diver dredging an excavation site during an underwater recovery operation, searching for personnel who went missing during WWII off the coast of Koror. Salvage diving is the diving work associated with the recovery of all or part of ships, their cargoes, aircraft, and other vehicles and structures which have sunk or fallen into water.

7. Athletics at the 2020 Summer Olympics – Men's 200 metres

   en.wikipedia.org/wiki/Athletics_at_the_2020...

   With his score, De Grasse finally moved into the top 10 of all-time in the 200m, a status foretold six years earlier with a wind-aided 19.58 while competing for the University of Southern California. Bednarek, in second, ran 19.68 to claim a tie with Frankie Fredericks (second behind Michael Johnson at the 1996 Olympics).