Search results
Results from the WOW.Com Content Network
Technical diving (also referred to as tec diving or tech diving) is scuba diving that exceeds the agency-specified limits of recreational diving for non-professional purposes. Technical diving may expose the diver to hazards beyond those normally associated with recreational diving, and to a greater risk of serious injury or death.
PADI courses are recognized, recommended and cited by the institutions and organizations listed below for both recreational diving and vocational training. PADI courses [clarification needed] are recommended for college credit in the US by ACE. [36] PADI is a member of the United States Recreational Scuba Training Council (RSTC). [37]
The equivalent course offered by National Association of Underwater Instructors (NAUI) is the Advanced Scuba Diver. As a second level qualification, the AOWD certification level is aimed somewhere between the CMAS* Diver and CMAS** Diver qualifications, or between the British Sub-Aqua Club (BSAC) Ocean Diver and Sports Diver qualifications, although some differences occur.
NAUI Nitrox diver certification card. A Diving certification or C-card is a document (usually a wallet sized plastic card) recognizing that an individual or organization authorized to do so, "certifies" that the bearer has completed a course of training as required by the agency issuing the card.
1937: Several test dives are conducted with helium mixtures, including salvage diver Max "Gene" Nohl's dive to 127 meters. [30] [31] 1939: US Navy uses heliox in USS Squalus salvage operation. Heliox usage, coupled with the absence of decrement in co-ordination and cognitive function in the salvage divers, confirms Behnke's theory of nitrogen ...
The following is a list of websites that follow a question-and-answer format. The list contains only websites for which an article exists, dedicated either wholly or at least partly to the websites. For the humor "Q&A site" format first popularized by Forum 2000 and The Conversatron, see Q&A comedy website.
The legal duty of care of a divemaster to a client varies according to the legislation of the country, where it is often poorly defined. The use of waivers and/or assumption of risk forms that are intended to minimize legal accountability of divemasters is a common practice, but the validity of such waivers will vary with the legislation.
[7] [8] [9] Other factors, such as darkness and caffeine, increase tolerance in test animals, but these effects have not been proven in humans. [10] [11] The maximum single exposure limits recommended in the NOAA Diving Manual are 45 minutes at 1.6 bar, 120 minutes at 1.5 bar, 150 minutes at 1.4 bar, 180 minutes at 1.3 bar and 210 minutes at 1. ...