Why Do Divers Use Helium?
Find out the three reasons why divers use helium in their breathing gas to increase diving safety. Scuba agencies have differing policies on training for helium diving.
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Andy Davis Sidemount Technical Wreck Diving Blog
Articles for beginner to expert scuba divers
Andy Davis Sidemount Technical Wreck Diving Blog
Articles for beginner to expert scuba divers
scuba diving depth
A Logical Application of Gradient Factors for OC Tech Divers
My systematic method for assigning effective gradient factors settings on recreational and technical open circuit dives.
Read MoreA Logical Application of Gradient Factors for OC Tech DiversThe Physics of Diving – Scuba Gas Laws Theory
An explanation of the Scuba Gas Laws for Diving. Boyle's Law, Henry's Law, Charles Law, Dalton's Law, Oxygen Toxicity & Partial Pressures.
Read MoreThe Physics of Diving – Scuba Gas Laws TheoryScuba World Depth Records – Science versus the Human Factor
Perspective on scuba world depth records: human physiology versus the limitations of diving science and technology.
Read MoreScuba World Depth Records – Science versus the Human FactorHow Deep Can You Dive Using Air?
There are three governing factors which determine how deep can you dive using air. Understanding those factors promotes safe gas selection.
Read MoreHow Deep Can You Dive Using Air?Scuba Q&A: Deep Diving Below Recreational Agency Depth Limits
Scuba Q&A Question: I was taught that “recreational divers plan all dives to be no stop dives” and also that most agencies consider 40m /130 feet as the maximum depth for recreational deep diving. That seems inconsistent when my…
