Considerations Of Oxygen In Diving Gas Mixtures

Oxygen is the most basic life support system our bodies employ, and yet also has the capacity to cause great harm.  Keller (1946) has called oxygen “The Princess of Gases.  She is beautiful but has to be handled with special care”.  We cannot live without it, but in prolonged breathing exposures or in deep depths … Read more

Practical Dive Care

by Mel McCombie We’re on a long dive trip and wondering about some everyday practical things—diving with contact lenses, sun protection—and wondered what others have to say? For example, I dive with soft contact lenses; I notice that during dives, when my eyes encounter sea water, they create mucus (which I delicately term “eye boogers”), … Read more

Underwater Photography: It’s Easier Than it Was But You Still Need Some Skills

At weekends, I work in a store that specializes in underwater photography equipment. We try to match products to each customer’s needs. Recently, a young woman came in to buy an underwater camera. She professed to be a professional writer intending to supply articles to diving magazines. She wanted a camera that was very straightforward … Read more