Newsflash
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The underwater world, people have dreamed of for hundreds of years, but the chance for real contact with him has brought us only the twentieth century, Jacques Cousteau, and a certain air inventing the camera. From that moment until today diving became increasingly popular. But even today the vast majority of people treat this as something dangerous sport and the underwater environment as extremely unfavorable to man. This view is further exacerbated in the human consciousness through the media, which inform us only to happen when an accident or tragedy occurs. No one but the public does not speak of riches and beauty of this very different world and that the diving, according to the statistics, it becomes more secure. And despite appearances, very easy to start an adventure of diving. The only thing is, we need a little enthusiasm, the implementation of appropriate medical examination and you can sign up for the course. Basic course usually lasts no longer than 5 days and consists of a series of lectures, preparation for a potential candidate to substantially diver, and a series of dives with an instructor. Broad diving has many varieties. You can dive in the pool, lake, sea or plastic containers. We are interested in diving in more extremalnych places: bunkers or caves or wrecks ... You can dive without equipment (free diving), and with full instrumentation. Both the small depth, and at large using modern technology reach depths greater than 200 m. The oldest document which deals with the descent of man into the water is considered the Assyrian bas-relief from 885 years BC depicting a man armed with something like the crossbow and the breathing of something that today we would call scuba diving. In 332 b. c. Greek philosopher Aristotle described the diving bell used by Alexander the Great during the siege of Tyrus. Diving technology developed and was used for military purposes. A popular device of our era is the diving bell. This simple device that was invented by Guglielmo de Loreno in 1535, and the first reliable description of the use of this invention comes from 1538 years. Then, in the Spanish city of Toledo was a screening of the draft in the diving bell. The designers went further. 1715 years comes from a French document, entitled "Le Plongeur du Chevalier de Beauv, which is using the precise descriptions and diagrams detail the project closed diving suit, in which the helmet and overalls a whole, and the exhaled air leaves the system through a separate tube and leaves the surface. Both helmet and body are padded to prevent pressure effects. Limbs were not guarded. The first dive allows the system to move freely in the water was invented in 1797. Its designer Karl Heinrich Klingert developed a helmet which is connected to a large tank, filled with compressed air enabled the long trip underwater. The tank also had the buoyancy chamber. Despite this, he was too heavy, but its use was made of many test dives. When Jacques Yves Cousteau and engineer Maurice Gagnan constructed breathing machine, everything changed. In 1942 he used the air pressure regulator used in cars with generator gas. In their aqualungu (Engl. lung water) air was supplied in the mouth automatically when a diver inhalation air cylinders on his back diving. The phenomenon of the construction lies in the fact that existing breathing machines are only variations of the patent. The charm of the sport's next venture, is also changing underwater landscape. Wealth of underwater flora and fauna. The diver will never know until the end of what he saw under water. For dipping deeper readings often lead people from childhood, as well as purely sporting desire to follow the unknown, and compete with others. Dangers that accompany diving illnesses occurring in practicing the sport. Decompression illness and its complications are very serious. Physically threatened by divers underwater landscape elements and some animals ... |
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