Why do tech divers use two computers? Technical diving requires redundancy of safety-critical equipment. If something fails, you still have to complete the planned decompression to surface safely. Being able to track time and depth for a decompression ascent is obviously critical to that requirement. It can be done (or backed up) with a written […]
The post Why do tech divers use two computers? was written by Andy Davis.
]]>Core Overhead Environment Diving Skills A collection of video tutorials from the web – depicting key skills for overhead environment diving in wrecks and caves. For information only. Please get properly trained before attempting to enter shipwrecks! I will update this blog entry with more videos and features as I find them… if you have […]
The post Core Overhead Environment Diving Skills | Training Videos | was written by Andy Davis.
]]>Nitrogen Narcosis – Perceptions of Susceptibility Examining the human factors influencing diver perceptions of susceptibility to nitrogen narcosis. By Andy Davis Nitrogen narcosis is a hyperbaric neurological phenomenon. Its existence, symptoms and onset are known, even if medical science has not yet explained the physiological mechanisms causing it. Individual susceptibility to the effects of nitrogen […]
The post Nitrogen Narcosis – Perceptions of Susceptibility was written by Andy Davis.
]]>Sheck Exley’s Razor – The Nature of Limits By R.D. Milhollin (Blog editor’s note: This article was first published in the March-April 1995, issue of Underwater Speleology. I have added it here on my blog to preserve and disseminate further, what I believe to be beneficial insights into overhead and technical diving knowledge). Sheck Exley was one […]
The post Sheck Exley’s Razor – The Nature of Limits was written by Andy Davis.
]]>An abridged version of this deep stops article was originally in DeepTech, 5:64; and the full version subsequently published in Cave Diving Group Newsletter, 121:2-5. The Importance of Deep Stops: Rethinking Ascent Patterns From Decompression Dives by Richard L. Pyle Before I begin, let’s make something perfectly clear: I am a fish-nerd (i.e., an ichthyologist). […]
The post The Importance of Deep Stops by Richard L. Pyle was written by Andy Davis.
]]>Scuba Q and A: QUESTION: I am a recreational diver and I dive mostly with my husband. Our relationship issues (bickering) caused me stress. Is this a factor I should consider when scuba diving? Andy’s Answer: I know of at least one diving fatality that could otherwise have been avoided if intra-relationship dispute and/or the […]
The post Scuba Q and A: Diver Stress, Relationships and Comfort Zones was written by Andy Davis.
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