Grrl Dive

posted by Admin on Mar 16

Basic Information bout Scuba Diving

SCUBA is an acronym which expands as Self Contained Underwater Breathing Apparatus. Scuba diving is a form of underwater diving where the diver uses a scuba apparatus to breathe underwater. It is a common recreational activity and tends to be very enjoyable. Scuba Diving is quite different than the early methods of diving which involved air being pumped from the surface to sustain oxygen for the divers, Scuba diving on the other hand allows the divers to carry their own source of compressed air or oxygen. This technique allows divers to extend the duration of time spent underwater like in snorkeling and free-diving methods.
The divers movement is controlled by a swim fin which is worn on each of the divers feet making movement underwater quite easier. An alternative to this method is external propulsion which can originate from an underwater sled or vehicle. Scuba-diving has many sub-classes and can be classified as either personal diving or professional diving. Personal diving, as the name suggests, indicates that the diver merely wishes to scuba dive for recreational and enjoyment purposes and nothing else. The professional form of diving on the other hand is carried out for various activities such as civil engineering tasks, oil exploration and off shore excavations. Professional diving also deals with marine activities such as spear fishing and searching for salvage wrecks under the water.
There are many tasks such as: underwater marine life research; underwater archaeology and marine biology that consist of scuba diving. Personal diving or recreational diving generally include cave diving, ice diving, deep driving and wreck diving.
Water contains oxygen which is dissolved because most forms of aquatic life forms expel oxygen from their gills. As the humans do not have gills they hence require a breathing gas in a container or cylinder at ambient pressure. This is achieved by modern valve regulators which allows the user to inhale and exhale at ease regardless of the depth or density of the water. add