Scuba is an acronym for Self-Contained Underwater Breathing Apparatus. It consists of a portable breathing device that can be carried by free swimming divers. Basically it is nothing but a mouthpiece joined to one or two tanks of compressed air which are strapped to the diver’s back. The equipment makes it possible for divers to venture deeper into the waters than they would have been able to without it.
The first aqualung was made in 1943 by Captain Jacques-Yves Cousteau and Emile Gagnan.