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13 stories for“diving education”
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
The PROTECT package treats drowning as a systems failure involving childcare, transport, infrastructure, rescue and climate preparation, not a single bad choice.
Jul 23, 2026
DAN is a name every diver knows, but membership and dive accident insurance are not the same thing. Here is what each one actually buys you.
Jun 30, 2025
Below 50 metres, ordinary air becomes a liability for divers. Here is the physics behind nitrogen narcosis, rising gas density, and why trimix exists as the technical diving standard.
Jun 8, 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
