skin diving with scuba apparatus
underwater swimming using scuba equipment
Scuba diving is a form of underwater diving in which a diver uses a self contained underwater breathing apparatus to breathe underwater. Unlike other modes of diving, which rely either on breath-hold or on air pumped from the surface, scuba divers carry their own source of breathing gas, allowing them greater freedom of movement than with an air line or diver's umbilical and longer underwater endurance than breath-hold. Scuba equipment may be open circuit, in which exhaled gas is exhausted to the surroundings, or closed or semi-closed circuit, in which the breathing gas is scrubbed to remove carbon dioxide, and the oxygen used is replenished from a supply of feed gas before being re-breathed. A scuba diver usually moves around underwater by using swimfins attached to the feet, but external propulsion can be provided by a diver propulsion vehicle, or a sled pulled from the surface.
The scuba diving symbol -- In this Symbols.com article you will learn about the meaning of the scuba diving symbol and its characteristic.
The numerical value of scuba diving in Chaldean Numerology is: 8
The numerical value of scuba diving in Pythagorean Numerology is: 3
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"scuba diving." Definitions.net. STANDS4 LLC, 2018. Web. 21 Jan. 2018. <http://www.definitions.net/definition/scuba diving>.