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Diving instruments by Conrad H. Blickenstorfer. In this section we describe and discuss all the instruments necessary for scuba diving: submersible pressure gauge (SPG), depth gauge, timing device, as well as the optional ones such as compass and thermometer.We also describe dive computers, the marvelous devices that can fill the role of most instruments all in one package.

In this section we explain dive tables and go through specific examples of repetitive dives, using both the PADI and the NAUI tables. Dive tables are used to determine how long you can safely stay under water at a given depth, both for the initial …

Scuba Cylinders by Conrad H. Blickenstorfer. As everyone (well, almost everyone) knows, "SCUBA" stands for "Self-Contained Underwater Breathing Apparatus." Without air we can't breathe, which means the compressed air tank that supplies you with air as long as you're underwater is of central importance.

Colors are different underwater. Colors are really nothing more than different wavelengths reflected by an object. Underwater, waves travel differently, and some wavelengths are filtered out by water sooner than others. Lower energy waves …

Bonica: Bonica JVC HM650 -- Roatan, Honduras (12:27, Dec, 2011) [] Bonica JVC HM650 -- Cancun Diving (2:57, Aug 2011) [] Bonica JVC HM650 -- Islas Revillagigedo/Socorro (10:12, Jun 2011) [] Bonica JVC HM650 -- Whale sharks in Mexico (6:57, Aug 2011) [] Bonica HDDV -- The wreck of the Mr. Bud, Roatan (6:00, Mar 2009) [] See …

Diving Physiology by Conrad H. Blickenstorfer. What? More complicated stuff to learn, you might say. Wasn't the "Physics" section enough? All I want to do is go diving. True, but diving means to enter into an environment that is not natural for humans, and that makes studying physiology as it relates to being underwater necessary.

2010年2月6日 · Regulators by Conrad H. Blickenstorfer. The regulator enables you to use the air in your scuba tank. It is the part of your diving gear in charge of regulating air flow between the tank, your mouthpiece and all other hoses and attachments that require air, such as the pressure gauge, the dive computer, a secondary air source, etc.

Time to talk about cameras, underwater cameras. We've tested and reviewed a large number of cameras underwater over the years, both with and without housing. Initially, it was safe to say that the average underwater photographer would get one …

Diving masks by Conrad H. Blickenstorfer. The primary reason why a lot of people don't enjoy swimming, let alone diving, is because they don't like water in their eyes. Sure, you can swim underwater with your eyes open, but not everybody likes the feeling, and our eyes were not designed to see well in water.