Scuba-diving is gaining in popularity and is practised all over the world, but to be practised safely good equipment is essential! 🙂
Scuba-diving equipment is divided in two parts:
Heavy equipment, which consists of:
– a diving cylinder – a container made of aluminium or steel inside which a mixture of gas is kept under pressure, from 30 atmospheres to a maximum of 500 atmospheres;
– a breathing regulator, which is composed of tubes that connect the cylinder with the mouth-piece with which one breathes;
– a BC or BCD (Buoyancy Compensator or Buoyancy Control Device) which is usually a vest, equipped with weights, that helps control the different stability underwater.
Light equipment, which consists of:
– an underwater mask;
– socks, which keep you warm and make fins more comfortable
– a wet-suit, which keeps you warm
– a snorkel, which can be useful in case of emergency
– a surface marker buoy, which lets boats know that there is a diver under water.
Before the invention of the gas cylinder and the mouth-piece, diving was very dangerous and only possible after a long and hard training!
In 1943 Jacques Cousteau invented the Aqua-lung, which was the first name of the breathing regulator, and which is composed of two parts: the first is attached to the oxygen tank and it reduces the pressure of the out-coming gas, and the second is in the mouth-piece and it controls the emission of the air.
In English diving with this equipment is called SCUBA – diving where SCUBA is an acronym invented in 1952 meaning:
Self Contained Underwater Breathing Apparatus
And it has been called so up to this day.