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Abcs Of Snorkeling Grace Bay Beach

By Patty Goff


Scuba diving techniques with gas mixtures (Nitrox, Heliox, Trimix) or using rebreathers (also called assistive devices rebreathing or rebreathers) are considered within the category of technical or professional diving. This is because of risk and the level of preparation required by the divers who uses them (snorkeling grace bay beach).

The term defines exactitude scuba diving in the sea, which is also and by far the most practiced diving worldwide. When practiced in caves or flooded mine shafts it is called cave diving and diving in mountain lakes - high dive. In almost all modes that use breathing apparatus the most widely used is the scuba (a regulator fed by one or more bottles of compressed air).

It is the simplest form and oldest diving method employed by man, and appears in various regions and cultures to exploit food sources (fish, crustaceans and molluscs), useful resources (algae, sponges, corals) and resources of cultural value or economic (beads). The scuba diver using a compressed air bottle that lets you go breathing the stored air, giving it considerable autonomy (usually around an hour).

However, current safety standards require a number of tools that let you know how deep you are and what air pressure is left, called depth gauge and pressure gauge, respectively. Dive computers are also becoming popular, depending on depth, mixture of air and the time spent underwater, they indicate at all times the depth range where you can stay.

Notwithstanding the limited mobility diving diver because he stays connected to surface by an air hose. Scuba diving is one that does not require any connection to surface. The quest for autonomy by inventors occurred during the nineteenth century some inventions of limited effectiveness, the most notable of them being the regulator mentioned in Jules Verne's novel Twenty Thousand leagues Under the Sea.

The role of wetsuits is to protect the diver from hypothermia. The thermal insulation of skin is not adapted to aquatic environments because the specific heat of water is higher than the air. In water below 27 degrees Celsius, it is recommended to be thermally insulated; temperatures below 22 degrees Celsius and with 15 degrees Celsius or less good insulation is essential.

There are different certifying agencies and government or private entities that are responsible for ensuring these processes. The main ones are: World Underwater Federation (CMAS) that is responsible for issuing their degrees. SSI Scuba Schools International (SSI). These agencies are guarantors of knowledge of minimum training standards for each level of competence of their members. The level of competence certified to a diver is reflected in type of degree.

From this invention many improvements and innovations have been made in both design and quality, but the basic principle remains. Surprisingly, this technology has remained virtually unchanged for over 50 years. Recreational diving is practiced in two forms: free diving or apnea (descent into the deep sea, ie, without traditional diving equipment). Techniques around apnea and scuba air belong to the recreational category.




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Ditulis oleh: Faisal Reza Siregar - Friday, October 17, 2014

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