Reliable measurement of oxygen is the technology that makes mixed-gas closed-circuit rebreathers (CCRs) possible. The first digital solid-state CCR sensor was made available in Spring 2017, and has greater accuracy and reliability.
Dive safety experts now advise divers to always dive with their tank valves completely open — not turned back a half or quarter turn. Are you up to date on the rules? Read one diver’s story.
Aquariums can house your own slice of indoor reef life — complete with colorful fish, corals and spunky crabs. Follow these tips to create your perfect aquarium.
Contrary to what you might expect, air will escape from a low-pressure hose faster than from a high-pressure hose because of the low-pressure hose’s wider opening.
DAN member, diver and author Jim W. Bunch talks about discovering and exploring underwaters wrecks on the shores of North Carolina.
Lindell Weaver, M.D., has spent his career treating critically ill patients and conducting research on carbon-monoxide (CO) poisoning and brain injuries.
Grouper populations are on the rebound thanks to protection efforts. But a major threat to these fish remains: mercury.
Parents often express reservations or concerns about going on dive vacations with their kids. But it’s a joint reasonability from both parents and dive operators.
School is in session! Shark experts pooled together in the nonprofit organization Sharks4Kids, teaching families around the world about sharks — setting the record straight.
No one likes getting sick on vacation, but one individual had a hard experience trying to file a claim with their primary insurance provider. One call to DAN, and it was smoothed over.
