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On 21 April 1949, a Kittiwake crewman, gunner’s mate first class, C. M. Prickett established a new open sea diving record when he dived from the decks of the Kittiwake to a depth of 501 feet while in the Panama area. [1] Departing Balboa on 31 May 1949, Kittiwake arrived at Norfolk, Virginia, on 6 June to continue duty with SUBRON 6.
A cave diver running a reel with guide line into the overhead environment. Cave diving is underwater diving in water-filled caves.The equipment used varies depending on the circumstances, and ranges from breath hold to surface supplied, but almost all cave diving is done using scuba equipment, often in specialised configurations with redundancies such as sidemount or backmounted twinset.
Drift diving – Scuba diving where the diver is intentionally transported by the water flow; Inland diving – Diving in waters inland of the coastal high water mark. Reef diving – Recreational diving on a reef Artificial reef – Human-made underwater structure that functions as a reef
Remotely Operated Vehicle KAIKO reached the deepest area of the Mariana Trench and made the deepest diving record of 10,911 m (35,797 ft; 5,966 fathoms) on 24 March 1995. [ 16 ] During surveys carried out between 1997 and 2001, a spot was found along the Mariana Trench that had a depth similar to the Challenger Deep, possibly even deeper.
The Continental Divide in North America in red and other drainage divides in North America The Continental Divide in Central America and South America. The Continental Divide of the Americas (also known as the Great Divide, the Western Divide or simply the Continental Divide; Spanish: Divisoria continental de las Américas, Gran Divisoria) is the principal, and largely mountainous ...
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The Aquarius Reef Base is an underwater habitat located 5.4 mi (8.7 km) off Key Largo in the Florida Keys National Marine Sanctuary, Florida, United States.It is the world's only undersea research laboratory and it is operated by Florida International University.
The two-volume index has 2,350 pages, listing the 228,274 topics covered in the Britannica, together with 474,675 subentries under those topics. [13] The Britannica generally prefers British spelling over American; [13] for example, it uses colour (not color), centre (not center), and encyclopaedia (not encyclopedia).