Scuba divers carry their own source of breathing gas, usually compressed air, affording them greater independence and movement than surface-supplied divers, and more time underwater than free divers. Lambertsen in a patent submitted in 1952.
The name 'scuba', an acronym for ' Self-Contained Underwater Breathing Apparatus', was coined by Christian J. Scuba diving is a mode of underwater diving whereby divers use breathing equipment that is completely independent of a surface air supply, and therefore has a limited but variable endurance. Diver looking at a shipwreck in the Caribbean Sea.
