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An aquascope (also called bathyscope) is an underwater viewing device. It is used to view the underwater world often from dry land or a boat. It eliminates the water surface glare and allows viewing as far as water clarity and light permit. The underwater viewer can be used for observing reefs, checking boat moorings, secchi disks and other ...
3.20 m (10 ft 6 in) Height: 3.35 m (11 ft 0 in) Propulsion: 2 × side-mounted reversible thrusters tiltable through 90 degree, 2 × lead-acid battery systems: 120 V DC at 330 Ah capacity and 12–24 V DC at 220 Ah capacity: Speed: 2.0 knots: Range: 7–10 hours operational time: Endurance: 140 hours life support for 3 people: Test depth: 2,000 ...
Underwater diving is practiced as part of an occupation, or for recreation, where the practitioner submerges below the surface of the water or other liquid for a period which may range between seconds to order of a day at a time, either exposed to the ambient pressure or isolated by a pressure resistant suit, to interact with the underwater ...
Underwater exploration is the exploration of any underwater environment, either by direct observation by the explorer, or by remote observation and measurement under the direction of the investigators. Systematic, targeted exploration is the most effective method to increase understanding of the ocean and other underwater regions, so they can ...
MSCs were initially conceived of in an attempt to create an improved version of the simplistic folboat. [1] It was created by the Allied Inter-Services Research Bureau [2] and designed by Major Hugh Reeves, R.E., [3] who was also given the task of designing an 'unspecified device' for an underwater approach [citation needed] at the confidential research area Station IX. based on an idea from ...
[5] [6] A 6 by 4.8 metres (20 by 16 ft) moon pool allows deploying and recovering autonomous underwater vehicles in ice-covered waters. [ 7 ] Tan Suo San Hao ' s diesel-electric propulsion system consists of four 3,000-kilowatt (4,000 hp) six-cylinder Wärtsilä 6L32 main diesel generators that power the ship's two 4.5-megawatt (6,000 hp) ABB ...
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In 1992 the National Association of Underwater Instructors (NAUI) became the first mainstream US agency to accept IANTD qualifications, and the Sub-Aqua Association (SAA) became the first UK agency to recognise IANTD certifications in 1993. In 2000, IANTD introduced a free-diver program prepared by Divetech Ltd of Grand Cayman. [3]
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