For Bookings: http://www.asiatravel.com/ For More Video: http://book.asiatravel.com/video-travel_destinations.aspx

Scuba diving (“scuba” originally being an acronym for Self Contained Underwater Breathing Apparatus, although now widely considered a word in its own right[1]) is a form of underwater diving in which a diver uses a scuba set to breathe underwater for recreation, commercial or industrial reasons.[2]

Unlike early diving, which relied exclusively on air pumped from the surface, scuba divers carry their own source of breathing gas (usually compressed air),[3] allowing them greater freedom than with an air line. Both surface supplied and scuba diving allow divers to stay underwater significantly longer than with breath-holding techniques as used in snorkelling and free-diving.

According to the purpose of the dive, a diver usually moves underwater by swimfins attached to his feet, but external propulsion can come from an underwater vehicle, or a sled pulled from the surface.

Water normally contains dissolved oxygen from which fish and other aquatic animals extract all their required oxygen as the water flows past their gills. Humans lack gills and do not otherwise have the capacity to breathe underwater unaided by external devices.[3] Some experiments indicate the possibility of filling and ventilating artificially the lungs with a dedicated liquid (Liquid breathing) — this currently has only medical applications.

Early diving experimenters quickly discovered it is not enough simply to supply air in order to breathe comfortably underwater. As one descends, in addition to the normal atmospheric pressure, water exerts increasing pressure on the chest and lungs—approximately 1 bar or 14.7 psi for every 33 feet or 10 meters of depth—so the pressure of the inhaled breath must almost exactly counter the surrounding or ambient pressure to inflate the lungs. It generally becomes difficult to breathe through a tube past three feet under the water.[3]

By always providing the breathing gas at ambient pressure, modern demand valve regulators ensure the diver can inhale and exhale naturally and virtually effortlessly, regardless of depth.

Because the diver’s nose and eyes are covered by a diving mask; the diver cannot breathe in through the nose, except when wearing a full face diving mask. However, inhaling from a regulator’s mouthpiece becomes second nature very quickly.

Info Taken from Wikipedia.com
Credits to Wikipedia.com
http://en.wikipedia.org/wiki/Scuba_diving

Main

Duration : 0:4:37

Read the rest of this entry

http://www.scubagearresort.com commercial advertising our great selection of high quality scuba and snorkeling gear and accessories. Our products are all high quality, good fitting, and affordable. Visit http://www.scubagearresort.com today! Video produced by http://www.visible.net

Duration : 0:0:30

Read the rest of this entry

Bahamas Diving – Hawksbill Turtle

Scuba divers at Small Hope Bay Lodge got a visitor during one of their scuba dives on the Andros Barrier Reef. This hawksbill turtle did some Bahamas diving of his own and was hanging out with divers.
The scuba divers went back to Small Hope Bay Lodge to enjoy the rest of their all inclusive Bahamas scuba diving vacation and talk about the cool things they saw that day around the outside bar while enjoying conch fritters.

What would be next? Small Hope Bay Lodge has wreck diving, cavern diving, blue hole diving, beautiful coral reef scuba diving, and shark diving. Bring the whole family for a great all inclusive beach resort vacation!

Duration : 0:0:50

Read the rest of this entry

Here is a taste of some of our beautful wall diving at Small Hope Bay Lodge on Andros Island. The resort is a ten minute boat ride from the 6000 ft deep Tongue of the Ocean, which gives our divers a lot of wall to dive! Scuba divers that come to the Bahamas for their scuba diving vacation enjoy a great diversity of diving – wall diving, wreck diving, reef scuba diving, shark diving – along with all the other wonderful activities at Small Hope Bay Lodge. It’s a perfect all inclusive Bahamas family vacation.

Duration : 0:2:11

Read the rest of this entry

 Page 2 of 2 « 1  2