THE THREE GASES GENERALLY used in recreational and technical diving are oxygen, nitrogen, and helium. Nitrogen is the most abundant and is usually the default gas, but no one seems concerned about its purity, although the U.S. Compressed Gas Association (CGA) provides purity levels, or grades, for various applications.
THE QUESTION PEOPLE MOST FREQUENTLY ASK us about our years of dive travel involves our favorite place to dive. This can be a delicate topic, especially when visiting a resort with resident staff or management nearby. We unfailingly reply, “Where we’re diving now.”
I have learned to read the minute details of each athlete’s technique and interpret the impending risk that arises as they push themselves in pursuit of a personal-best performance.
DIVING IN THE TURKS AND CAICOS ISLANDS guarantees plenty of beauty and excitement. This British overseas protectorate entices tourists with the slogan “Beautiful by Nature.” The Caribbean waters throughout the islands offer breathtaking vertical walls, frequent close encounters with pelagics, and opportunities to observe an incredible diversity of fascinating marine life.
MINORS HAVE BEEN DIVING FOR DECADES, but the incidence of scuba diving injuries among them remains poorly studied.
I WAS READING SYLVIA EARLE’S FOREWARD TO Our Ocean, Our Future: Palau, a lovely coffee-table pictorial book by Michael Aw, David Doubilet, and Jennifer Hayes. Earle opened by remarking on when she’s asked about the best place to go diving. Her usual answer is, “Almost anywhere, 50 years ago.”
AS A WILDLIFE OFFICER, I spend countless hours on the water. As an instructor for the National Association of Underwater Instructors (NAUI), I have also spent a lot of time teaching and diving.
Before you dive, you and your doctor should consider some possible effects of having a low platelet count. In some cases, it may affect the body’s ability to clot properly in response to injury.
OSKAR FRANBERG LEADS THE RESEARCH GROUP in marine systems engineering at the Blekinge Institute of Technology in Karlskrona, Sweden, and is managing director of the Swedish National Underwater Technology Center. This father of three is an engineer by training and has been active in dive research, especially rebreather physiology, for more than 20 years.
MANY DIVERS AND NONDIVERS ALIKE envision the ideal scuba dive as a coral reef in warm, clear water surrounded by a myriad of beautiful fish. River diving, on the other hand, is drastically different and not for the faint of heart.
