Dive Computers and Algorithms: What They Cannot Know About You
A dive computer tracks pressure and time with precision, but the model behind it cannot see the diver wearing it. Here is what that gap actually means.
Mar 19, 2026

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23 stories for“no decompression limits”
A dive computer tracks pressure and time with precision, but the model behind it cannot see the diver wearing it. Here is what that gap actually means.
Mar 19, 2026

Three minutes at five metres is drilled into every diver and explained to almost none of them. It is not decompression, it is not required, and skipping it is not the emergency people assume.
Aug 9, 2026

The numbers every diver recites are not arbitrary and they are not a safety margin invented by lawyers. They come from a specific set of chamber trials, and knowing their limits tells you when to wait longer.
Aug 15, 2026

Enriched air extends no-decompression limits at recreational depths by reducing the nitrogen you take on. It also imposes a hard ceiling on how deep you can take it, and the claim about post-dive fatigue has never held up.
Sep 5, 2026

Divers call it the bends. Doctors call it decompression sickness. Here is what nitrogen bubbles actually do to tissue, and how hyperbaric treatment reverses it.
Feb 14, 2024

An Open Water card opens the door to diving worldwide, but it is a narrower licence than most new divers assume. Here is exactly what it covers.
Sep 9, 2025

Technical diving begins the moment a diver can no longer go straight to the surface. Here is how training builds toward that shift, one course at a time.
Dec 5, 2025

When a diver surfaces with decompression sickness, a hyperbaric chamber is the only real fix. Here is how recompression works, and where chambers actually are.
Nov 18, 2024

The old assumption was that one breath cannot load enough nitrogen to matter. Repetitive deep dives with short surface intervals disprove it, and the divers it happens to are usually working, not competing.
Aug 12, 2026

In the late 1980s, teaching recreational divers to breathe enriched air was close to heresy. IANTD taught it anyway, then built the trimix and rebreather syllabi much of technical diving still runs on.
Aug 12, 2026

Oxygen keeps divers alive, until pressure turns it toxic. Here is why central nervous system oxygen toxicity shapes every gas decision in technical diving.
Sep 10, 2024

Shearwater, Garmin and Suunto now sell wrist computers that look broadly alike and cost between 760 and 1,800 dollars. What separates them is the decompression model, the transmitter, and what you are really paying for.
Aug 18, 2026

Divers Alert Network is not a training agency and issues no certifications. It collects the injury data, then publishes guidance based on it. Here is that guidance, in the order it matters.
Aug 12, 2026

Older than PADI, structured as a non-profit membership association, and built on a principle almost nobody else uses: the instructor may exceed the standards, and is expected to.
Aug 12, 2026

Five Italian divers and a Maldivian rescuer died in May. A manslaughter file is open in Rome, a liveaboard lost its permit, and the Maldives is writing technical diving law. A follow-up assessment.
Aug 12, 2026

DAN's annual diving reports track how divers die each year, and the leading cause is rarely the dramatic equipment failure popular imagination assumes it to be.
Jun 19, 2026

NOAA teams outplanted corals at 66 meters during a 2026 Gulf mission. The work shows how advanced diving and laboratory science can restore difficult deep habitats.
Aug 2, 2026

Finnish cave specialists, Maldivian coast guard divers and DAN Europe medics carried out a coordinated recovery after the Vaavu Atoll cave tragedy.
May 22, 2026

Diving emergencies far from shore involve costly medical evacuations and coordination. Here is how that response is actually funded and organised, and who calls the shots.
Jun 25, 2026

A French submarine at 36 metres, a 1939 freighter at 40, and a Victorian battleship far beyond recreational limits. Lebanon's coast is a wreck list before it is a reef.
Aug 6, 2026

One demands breath control and stillness, the other demands equipment discipline. Here is what separates them and where beginners should start.
Jun 24, 2025

After six divers died in a Vaavu Atoll cave, the Maldives is drafting new rules to permit and regulate technical diving in the country for the first time in its history.
May 28, 2026

One Maldivian military diver died in the Vaavu Atoll mission. His service deserves gratitude, while the unanswered questions surrounding his death still demand scrutiny.
Jul 25, 2026
