The equipment needed for diving is divided into light equipment (fins, mask and snorkel or snorkel) and self-contained (bottle, buoyancy compensator, regulator with gauge and pressure gauge, and ballast). Additionally, the scuba diving equipment usually includes a dive computer a marker buoy, a flashlight, and a small knife, and depending on the temperature and currents, a hat and gloves (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).
The regulator reduces high pressure of the water surrounding the diver, so that he can breathe normally and independently of cables and air supply tubes from the surface. In 1943 Jacques-Yves Cousteau and Emile Gagnan were the inventors of regulators, which are still currently used in (professional and recreational) scuba diving.
There is evidence that free diving has been practiced for thousands of years for food or wealth (or coral beads, for example) and also for military purposes. Scuba diving, wearing a helmet and breathing surface-supplied air, began to develop during the second half of eighteenth century, but especially from the early nineteenth century and continues today using similar techniques.
Recreational diving is a safe activity, but has specific risks that require knowledge and responsibility from its practitioners. Proper preparation, familiarity with the equipment used, knowledge and application of security measures, a minimum of technical and physiological knowledge, and respect for aquatic organisms are the minimum requirements to successfully perform these activities. There are different specialties in the commercial, military and recreational area, such as underwater photography, deep diving, wreck diving, cave diving, night diving, underwater archeology, biological research, ship maintenance, spear fishing, or rescue and recovery, or for fun, among others. The practice of some of these specialties requires previous training courses.
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 three basic types of isolation suits: wet suits, dry suits and semi-dry suits. The first generally are suits made of sparkling and resistant materials (usually neoprene), which form an insulating layer between the medium and the skin, but not waterproof. Its efficiency depends on the thickness of the foam and the body fit. Wet suits can be short or long, depending on the number of parts are classified into one-piece or two-piece suits.
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.
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).
The regulator reduces high pressure of the water surrounding the diver, so that he can breathe normally and independently of cables and air supply tubes from the surface. In 1943 Jacques-Yves Cousteau and Emile Gagnan were the inventors of regulators, which are still currently used in (professional and recreational) scuba diving.
There is evidence that free diving has been practiced for thousands of years for food or wealth (or coral beads, for example) and also for military purposes. Scuba diving, wearing a helmet and breathing surface-supplied air, began to develop during the second half of eighteenth century, but especially from the early nineteenth century and continues today using similar techniques.
Recreational diving is a safe activity, but has specific risks that require knowledge and responsibility from its practitioners. Proper preparation, familiarity with the equipment used, knowledge and application of security measures, a minimum of technical and physiological knowledge, and respect for aquatic organisms are the minimum requirements to successfully perform these activities. There are different specialties in the commercial, military and recreational area, such as underwater photography, deep diving, wreck diving, cave diving, night diving, underwater archeology, biological research, ship maintenance, spear fishing, or rescue and recovery, or for fun, among others. The practice of some of these specialties requires previous training courses.
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 three basic types of isolation suits: wet suits, dry suits and semi-dry suits. The first generally are suits made of sparkling and resistant materials (usually neoprene), which form an insulating layer between the medium and the skin, but not waterproof. Its efficiency depends on the thickness of the foam and the body fit. Wet suits can be short or long, depending on the number of parts are classified into one-piece or two-piece suits.
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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