What You Need To Know About Scuba Diving
Scuba is derived from the acronym Self Contained Underwater Breathing Apparatus. The term was first used during World War II. The Scuba was created by Dr. Christian Lambertsen, for use in underwater fights.
Scuba might have been an acronym, but now it is a word that stands alone. Now, scuba diving is defined as a type of underwater diving wherein a scuba set is utilized by a diver in order to last underwater.
The beginnings of scuba diving
The inventors of the first used Aqualung scuba sets were Jacques-Yves Cousteau and Emile Gagnan. Their Aqualung set made use of compressed air from a certain tank which was removed through the other end of the tank.
The early forms of scuba diving made use of a “breath hold” or air pumped from the land surface. Now, scuba divers bring with them their portable gas containers underwater. This breathing gas makes movement underwater freer and easier. With scuba diving, a person can breathe underwater longer, in comparison to other water activities such as free diving and snorkeling.
The modern scuba diving sets, however, are considered to be developed by Ted Eldred, an Australian. He created the Porpoise, which is the first mouth piece regular in the world. Eldred developed the Porpoise since patents prevented him from making his own version of Aqualung’s double house. The porpoise allowed the diver to attain the same pressure surrounding the mouth instead of the tank.
The rebreather system, which reprocesses air to get rid of carbon dioxide, resulted in certain incidences of oxygen toxicity. This was the reason why open circuit systems were created. Modern rebreather apparatus is still used today in activities such as deep diving.
What a scuba diver needs
Most divers use swim fins to navigate underwater. Some divers, on the other hand, rely on underwater propulsion vehicles which move them to various places faster.
In order to breathe underwater, scuba divers needs a big poker edge to use apparatus such as the rebreather and the open-circuit regulator. A breathing gas (composed of 78% nitrogen, 21% oxygen, and 1% trace gases) is also needed.
Since vocal communication underwater is impossible, (unless you have waterproof mobile devices), hand signals are used by divers in order to talk with one another. To say stop underwater, a diver needs to do a hand gesture similar to a policeman ordering you to stop. To say go, clench your fist and direct your thumb downwards.
Forms of scuba diving
Several scuba diving activities are divided in these categories: recreational, professional, commercial, naval, military, technical, scientific, and police diving.
Recreational scuba diving is perhaps the most famous form. Such diving activities categorized under this branch are underwater tourism, underwater photography, underwater tour guiding, underwater archaeology (shipwrecks), surveys and mapping, spear fishing, and marine biology.
The hazards of scuba diving
Although scuba diving is a fun hobby, there are certain illnesses, which can be acquired because of prolonged stay in high-pressure areas. Frequent scuba divers are at risk for developing illnesses such as decompression sickness, nitrogen narcosis, and oxygen toxicity.