Snorkeling, diving and deep-sea diving is the act by which man is immersed in water bodies, either the sea, a lake, a river, a flooded quarry or pool, in order to develop a vocational, recreational, scientific or military research activity. The traditional dive (without breathing apparatus) is simply called diving, although the sporting variant is called 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).
A good mask should work under the following conditions: the display must include the nose in its internal volume, in order to allow pressure balancing suction preventing the phenomenon. The space for the nose should be flexible to allow for maneuver. It should be tight, so that it fits perfectly and comfortably. If you intend to freedive you must have the least possible volume of air inside.
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.
But it was not until 1942 that the technology would make a giant leap and definitely allow man to dive independently from the surface. In that year Emile Gagnan (engineer employed at Air Liquide, Paris company specializing in compressed gases) miniaturized one regulator to suit gasifier car engines, as the Germans occupied France and confiscated all gasoline. Henri Melchior, father of Jacques-Yves Cousteau and owner of Air Liquide, thought then that this regulator might be useful to his son Cousteau. Melchior knew that the latter was trying to develop a underwater breathing system to grant full autonomy to the diver.
He introduced the two men in Paris in December 1942 and they started working together. Within weeks, in early 1943, they honed a first prototype controller in factories. Cousteau made the first tests of this prototype at the Marne, guarded by Gagnan from the surface. Since then divers escaped from the umbilical cord that kept him bound to the surface.
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).
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).
A good mask should work under the following conditions: the display must include the nose in its internal volume, in order to allow pressure balancing suction preventing the phenomenon. The space for the nose should be flexible to allow for maneuver. It should be tight, so that it fits perfectly and comfortably. If you intend to freedive you must have the least possible volume of air inside.
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.
But it was not until 1942 that the technology would make a giant leap and definitely allow man to dive independently from the surface. In that year Emile Gagnan (engineer employed at Air Liquide, Paris company specializing in compressed gases) miniaturized one regulator to suit gasifier car engines, as the Germans occupied France and confiscated all gasoline. Henri Melchior, father of Jacques-Yves Cousteau and owner of Air Liquide, thought then that this regulator might be useful to his son Cousteau. Melchior knew that the latter was trying to develop a underwater breathing system to grant full autonomy to the diver.
He introduced the two men in Paris in December 1942 and they started working together. Within weeks, in early 1943, they honed a first prototype controller in factories. Cousteau made the first tests of this prototype at the Marne, guarded by Gagnan from the surface. Since then divers escaped from the umbilical cord that kept him bound to the surface.
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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