A Tourniquet Saves a Diver’s Life
A recent dive trip changed the lives of everyone involved, and I hope this story might help save another life. About 30 days before the trip, I was talking to […]
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Diving After a Nissen Fundoplication
I am a 57-year-old male who is planning to undergo a laparoscopic Nissen fundoplication for refractory gastroesophageal reflux disease (GERD) and a hiatal hernia. Is the procedure considered an absolute […]
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Close-Focus Wide-Angle Photography
Most of our experiences in digital photography are somewhere between one end of a spectrum and the other. Underwater photographers often make an either/or distinction when describing how we shoot, ignoring that it is really a continuum.
Rewilding Coral Reefs
Though I believe rewilding coral reefs is a valuable approach, it requires a strong, established foundation of good old-fashioned marine conservation. I view reef rewilding as a tertiary marine conservation strategy that we should attempt only after the fundamentals of an effective marine conservation strategy (often anchored with a well-managed marine protected area) are in place.
Used Rebreather Scrubber Disposal
Sorb, or scrubber, plays a critical role in rebreather diving, as it is responsible for removing carbon dioxide (CO2) from the diver’s breathing gas. Small granules or pellets absorb exhaled CO2 and allow oxygen to pass through. This chemical process allows rebreathers to recycle exhaled air, limiting gas consumption and allowing longer dives.
Homemade Dive Gear
The “Historic Dive Helmets” article from the Second Quarter 2024 issue of Alert Diver triggered memories of my father, Burton Stewart, and his best friend Leno Prestini. In 1935 they crafted their own dive gear from a water heater, milk can, garden hoses, and Goodyear balloon material for the suits.
Blue Dragons
These small yet magnificent mollusks live in the open ocean and are at the mercy of wind, tide, and currents. As they float upside down just beneath the surface, their blue-striped bellies point upward while their metallic backs are counter-shaded when seen from below.
SPONSORED: Explorer Ventures Liveaboard Fleet Announces Customer Appreciation Sale for Caribbean Explorer II
Buy One, Get One for $999 – Plus Special Savings for Solo Travelers Explorer Ventures Fleet is celebrating divers and our friends who make it all possible with an exclusive […]
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